# The Role of the Surgery Sub-Intern ## Year 4: Sub-Internship Surgery --- ## Learning Objectives By the end of this seminar, students will be able to: 1. Define the core responsibilities of a surgery sub-intern and distinguish them from other medical student roles 2. Navigate the surgical team hierarchy and work effectively with residents, attendings, and staff 3. Deliver concise, effective surgical presentations including one-liners and SOAP notes 4. Perform comprehensive pre-operative assessments and day-of-surgery duties 5. Manage post-operative patients systematically and recognize early complications 6. Maximize learning in the operating room while maintaining professionalism and sterility --- ## Section I: Surgical Sub-Intern Responsibilities The surgery sub-internship represents the pinnacle of medical student clinical experience, offering the opportunity to function at an intern level while still having the safety net of direct supervision. Unlike clerkship rotations where observation and learning take precedence, the sub-intern assumes primary responsibility for a panel of surgical patients, managing their care from admission through discharge. This elevated responsibility prepares students for the demands of surgical residency while providing attendings with meaningful insight into a student's readiness for graduate medical education. The core duties of a surgery sub-intern encompass all aspects of patient care on a surgical service. Pre-rounding begins before dawn, requiring the sub-intern to evaluate each assigned patient, review overnight events, examine wounds and drains, and formulate assessment and plans before the team assembles for rounds. Throughout the day, the sub-intern responds to nursing concerns, manages floor issues, writes orders under supervision, and coordinates care with consultants and ancillary services. These responsibilities demand exceptional organization, as the sub-intern must juggle floor duties with operating room participation. The surgical sub-internship differs fundamentally from medicine sub-internships in pace, focus, and expectations. While medicine emphasizes comprehensive diagnostic workups and detailed presentations, surgery demands rapid assessment, concise communication, and action-oriented thinking. Presentations on surgery are brief and focused on the surgical problem and intervention, typically lasting under sixty seconds per patient. The hours tend to be longer, with early morning starts and late evenings common, and significant time is spent in the operating room rather than exclusively on the floors. Expectations for the surgery sub-intern center on reliability, preparation, and eagerness to contribute. Punctuality is non-negotiable; arriving late to rounds or cases creates problems for the entire team. The sub-intern must know their patients thoroughly, including all relevant laboratory values, imaging findings, and overnight events. Availability throughout the day, a positive attitude toward all tasks regardless of perceived importance, and self-directed learning round out the qualities that define a successful surgical sub-intern. Endurance for long hours is expected, but maintaining enthusiasm and clinical acuity throughout is what distinguishes exceptional candidates. ![Surgery sub-intern responsibilities and expectations. Panel A: Core duties including patient management, pre-rounding, operative cases, and floor procedures. Panel B: Comparison of medicine versus surgery sub-internship approaches to pace, presentations, and OR time. Panel C: Typical daily schedule from pre-rounding through evening sign-out. Panel D: Standards for punctuality, preparation, availability, and self-directed learning.](images/subintern_role_section1.png) --- ## Section II: The Surgical Team The surgical team operates with a clearly defined hierarchy that enables efficient decision-making and patient care in high-stakes environments. At the apex stands the attending surgeon, who bears ultimate responsibility for all operative decisions, complications, and patient outcomes. Below the attending, the chief resident provides leadership among trainees, coordinating case assignments, managing service logistics, and serving as the primary liaison between residents and attendings. Senior residents take primary operative responsibility under attending supervision, while junior residents manage day-to-day floor care and learn operative skills under close guidance. Working effectively with surgical residents requires understanding their pressures and priorities. Each resident has developed preferences for how patients are presented, how orders are written, and how problems are communicated. Learning these preferences and adapting to them demonstrates respect and accelerates integration into the team. Anticipating needs before being asked, such as having laboratory values ready during rounds or ensuring consents are signed before cases, marks the difference between a helpful team member and one who creates additional work. Asking questions is encouraged, but timing matters; recognizing when the team is stressed versus receptive to teaching optimizes learning opportunities. The relationship with attending surgeons shapes both the clinical experience and future career opportunities. Knowing each attending's cases thoroughly, including relevant anatomy, surgical steps, and potential complications, demonstrates commitment and preparation. Presentations to attendings should be even more concise than to residents, focusing on key developments and proposed plans. Following up promptly on any tasks assigned by attendings builds trust and reliability. These interactions form the foundation for letters of recommendation that carry significant weight in surgical residency applications. The broader surgical team extends beyond physicians to include essential professionals whose expertise ensures smooth operations. Operating room nurses manage case flow, maintain sterile fields, and advocate for patient safety. Scrub technicians organize instruments and anticipate surgeon needs throughout procedures. Anesthesiologists partner with surgeons to optimize patient physiology and manage perioperative complications. Floor nurses provide continuous patient monitoring and often detect subtle clinical changes before they become emergencies. Physical therapists, nutritionists, and social workers address specific patient needs that impact surgical outcomes. Learning names, showing respect, and collaborating effectively with all team members reflects well on the sub-intern and improves patient care. ![Surgical team hierarchy and collaboration. Panel A: Team structure from attending through sub-intern showing responsibilities at each level. Panel B: Strategies for working with residents including learning preferences and anticipating needs. Panel C: Keys to successful attending relationships including preparation and follow-through. Panel D: Collaboration with OR nurses, scrub techs, anesthesia, and ancillary staff.](images/subintern_role_section2.png) --- ## Section III: Surgical Presentations The one-liner represents the cornerstone of surgical patient presentation, distilling essential information into a single sentence that orients any listener to the patient's situation. A well-constructed one-liner includes patient age and sex, current post-operative day or admission status, the procedure performed or planned, the indication for surgery, and a summary assessment of current clinical status. For example: "Mr. Smith is a sixty-two-year-old male, post-operative day two from right hemicolectomy for cecal adenocarcinoma, doing well with return of bowel function." This format allows efficient communication during rounds when multiple patients require discussion. The SOAP note presentation expands on the one-liner with organized clinical details while maintaining surgical brevity. The Subjective section briefly notes patient-reported symptoms, complaints, and overnight events, typically in one to two sentences. Objective findings include vital signs summarized by ranges or trends rather than every individual reading, intake and output totals, drain outputs with character, and focused physical examination findings relevant to the surgical problem. Assessment synthesizes how the patient is progressing toward discharge milestones. The Plan outlines concrete actions for the day, presented as a prioritized list rather than rambling discussion. Brevity distinguishes surgical presentations from those in other specialties. Leading with the most important information ensures that even if interrupted, the critical points have been communicated. Knowing specific numbers, whether hemoglobin, drain output, or creatinine, rather than describing them qualitatively demonstrates mastery of patient details. Having a proposed plan, rather than waiting for instruction, shows clinical reasoning and initiative. Avoiding defensive statements or excuses when information is missing; instead, simply noting the gap and committing to follow-up maintains presentation flow and credibility. Surgical sign-out requires systematic communication that ensures safe overnight care. Each patient's location, procedure, and current condition should be stated clearly. Anticipated issues and specific contingency plans guide covering providers in decision-making. The if-then format proves particularly valuable: "If his heart rate exceeds one hundred twenty, then check hemoglobin and call me." Code status and any limitations on care must be clearly documented and communicated. Effective sign-out prevents overnight disasters and demonstrates that the sub-intern has thoroughly considered each patient's potential clinical trajectory. ![Surgical presentations. Panel A: Components of an effective one-liner with age, POD, procedure, indication, and status. Panel B: SOAP note structure adapted for surgical brevity with key elements per section. Panel C: Principles of brevity including leading with key issues, knowing numbers, and having a plan. Panel D: Sign-out format with patient identification, current status, anticipated issues, and contingencies.](images/subintern_role_section3.png) --- ## Section IV: Pre-Operative Role Pre-operative assessment by the sub-intern ensures surgical readiness and identifies potential complications before they occur in the operating room. The history and physical examination must be complete and focused on surgical relevance, including prior operations, anesthetic complications, bleeding tendencies, and functional status. All laboratory values should be current and reviewed, with abnormalities addressed or explained in documentation. Imaging studies must be available in the operating room, whether through electronic systems or physical films, and the sub-intern should be able to describe relevant findings. The consent process requires understanding of the planned procedure, alternatives, and complications to assist meaningfully. The surgical history and physical differs from internal medicine documentation in its emphasis on operative relevance. The history of present illness focuses tightly on the indication for surgery and relevant clinical course. Past surgical history receives detailed attention, noting procedures, complications, and whether previous operations were open or laparoscopic, as adhesions affect operative planning. Medications warrant special scrutiny for anticoagulants requiring bridging, steroids affecting wound healing, and diabetes medications requiring perioperative adjustment. Anesthesia-relevant history including allergies, difficult airway, and malignant hyperthermia risk must be documented prominently. The day before surgery, the sub-intern performs final verification of operative readiness. Laboratory abnormalities identified earlier should have been addressed, with repeat values confirming correction. Imaging must be loaded and accessible for intraoperative reference. For procedures with laterality or multiple possible sites, surgical site marking with the patient's participation prevents wrong-site surgery. Bowel preparation, if ordered, should be verified as completed. NPO orders must be confirmed with appropriate timing, and the patient should understand expectations for the morning of surgery. The signed consent should match the planned procedure exactly, including laterality and approach. On the morning of surgery, the sub-intern sees the patient in the pre-operative holding area to perform final checks and provide reassurance. Patient identity is confirmed with two identifiers, and the consent is reviewed with the patient to ensure continued agreement and understanding. Any interval changes in symptoms or new concerns raised by the patient are communicated immediately to the team. A brief review with anesthesia ensures shared understanding of patient issues. The surgical time-out, performed immediately before incision, represents the final safety check; the sub-intern should know each element and be prepared to participate actively. These systematic checks have dramatically reduced wrong-site surgery and other preventable errors. ![Pre-operative role. Panel A: Pre-operative assessment elements including history, physical, labs, imaging, and consent verification. Panel B: Surgical H&P focus on operative relevance including anesthesia history, bleeding risk, and functional status. Panel C: Day-before-surgery checklist for labs, imaging, site marking, bowel prep, and NPO status. Panel D: Day-of-surgery duties in holding area including identity verification, consent review, and time-out participation.](images/subintern_role_section4.png) --- ## Section V: Post-Operative Care Immediate post-operative care in the recovery room prioritizes detection of complications that may require rapid intervention. Vital sign stability indicates adequate resuscitation and emergence from anesthesia without hemodynamic compromise. Pain assessment and treatment begins immediately, as uncontrolled pain impairs deep breathing and mobilization. Respiratory status requires monitoring for airway obstruction, residual anesthetic effects, and adequacy of oxygenation. Surgical site examination confirms appropriate dressing coverage without evidence of expanding hematoma. Drain output character and volume provides early warning of hemorrhage or anastomotic leak. Urine output confirms adequate renal perfusion and guides ongoing fluid management. Daily post-operative assessment follows a systematic approach that ensures no important element is overlooked. General appearance indicates overall recovery trajectory and nutritional adequacy. Pulmonary examination with attention to incentive spirometry use and breath sounds detects atelectasis before it progresses to pneumonia. Cardiovascular assessment includes heart rate trends, blood pressure stability, and evaluation for deep venous thrombosis. Gastrointestinal recovery manifests as return of bowel sounds, passage of flatus, and tolerance of advancing diet. Wound examination notes approximation, drainage, and any concerning erythema or induration. Drain output is recorded with attention to both volume and character changes. Post-operative orders establish the framework for nursing care and monitoring. Activity orders progress from bed rest through dangling, to chair, to ambulation as the patient recovers. Diet advances from NPO through clear liquids to regular food as gastrointestinal function returns. Deep venous thrombosis prophylaxis continues throughout hospitalization using mechanical compression devices and pharmacologic anticoagulation when bleeding risk permits. Pain management employs multimodal approaches combining acetaminophen, NSAIDs when safe, and opioids as needed. Laboratory monitoring frequency depends on the procedure and patient condition. Nursing instructions address wound care, drain management, and parameters for notification of the team. Post-operative milestones guide expectations for recovery and discharge planning. On the day of surgery, the focus is simply recovery from anesthesia and hemodynamic stability. Post-operative day one typically sees the patient out of bed, using incentive spirometry, and with pain reasonably controlled on scheduled medications. By days two through three, patients should be ambulating in the hallway, tolerating diet advancement, and progressing toward independence. Return of bowel function, usually by days three through five, marks a critical milestone for gastrointestinal surgery. Drain removal follows when output decreases to acceptable levels. Discharge occurs when patients meet all criteria: tolerating oral intake, pain controlled with oral medications, ambulatory, and with appropriate wound care understanding. ![Post-operative care. Panel A: Immediate recovery room priorities including vitals, pain, airway, wound, and output monitoring. Panel B: Daily assessment system covering appearance, pulmonary, cardiovascular, GI, wound, and drains. Panel C: Post-operative order categories for activity, diet, DVT prophylaxis, pain, labs, and nursing instructions. Panel D: Recovery milestones from POD 0 through discharge with expected progress at each stage.](images/subintern_role_section5.png) --- ## Section VI: Operating Room Participation Operating room etiquette reflects professionalism and respect for the surgical environment and its team members. Arriving before the scheduled case time allows observation of patient positioning, preparation, and draping while demonstrating eagerness to participate. Preparation includes reviewing the patient's history, relevant anatomy, and planned procedure steps so that questions can be intelligent and participation meaningful. Maintaining sterility once scrubbed requires constant awareness of hand position, body movement, and proximity to non-sterile areas. Speaking only when appropriate, keeping eyes on the surgical field rather than wandering, and maintaining focus throughout the case show respect for the operating team. The scrubbing and gowning ritual must be performed correctly every time to maintain sterility. The surgical scrub takes three to five minutes, beginning with nail cleaning and proceeding systematically from fingertips to elbows. Entering the operating room, hands remain elevated with water dripping toward the elbows. Drying uses a sterile towel with one side for each arm. Gowning is assisted by the scrub technician, with arms inserted without hands emerging until gloves are donned. Closed gloving technique, where hands remain within sleeves until gloved, provides the most reliable sterility. The back tie is passed to the circulator or another scrubbed team member to complete the gown closure. The sub-intern's role during surgery typically involves retraction, suction, suture cutting, and camera driving during laparoscopic cases. Retraction requires steady, consistent pressure that maintains exposure without fatiguing or shifting unexpectedly. Suction follows the surgical action, clearing blood and fluids to maintain visibility without obstructing the surgeon's view. Suture cutting comes after ties are completed, with tail length varying by tissue and preference. Camera driving demands smooth movements, a level horizon, and anticipation of where the dissection is heading. Throughout, the sub-intern watches for opportunities to learn anatomy and technique while remaining focused on assigned tasks. Maximizing learning in the operating room requires preparation, engagement, and appropriate follow-up. Reading about the procedure beforehand, including typical anatomy, surgical steps, and potential complications, allows the sub-intern to follow the case intelligently. Asking questions at appropriate moments, such as during natural pauses or explicitly invited teaching, shows engagement without disrupting flow. Observing tissue handling, hemostatic technique, and decision-making at critical points builds the foundation for future independent operating. Requesting opportunities to suture or close when appropriate demonstrates initiative. After cases, reading about encountered pathology or complications reinforces learning and prepares for similar future cases. ![Operating room participation. Panel A: OR etiquette including arrival, preparation, sterility, and focus. Panel B: Scrubbing and gowning sequence from hand washing through closed gloving technique. Panel C: Intraoperative roles including retraction, suction, suture cutting, and camera driving. Panel D: Strategies for maximizing learning through preparation, appropriate questions, observation, and follow-up reading.](images/subintern_role_section6.png) --- ## Section VII: Common Surgical Procedures General surgery procedures form the core operative experience for most sub-interns. Appendectomy, whether open or laparoscopic, addresses appendicitis through removal of the appendix and inspection for perforation or abscess. Cholecystectomy, overwhelmingly performed laparoscopically, removes the gallbladder for symptomatic cholelithiasis or cholecystitis. Hernia repairs address inguinal, umbilical, and incisional defects using tissue approximation or mesh reinforcement. Colectomy removes segments of the colon for malignancy, diverticular disease, or other indications, with restoration of continuity or creation of ostomy depending on circumstances. Small bowel resection addresses obstruction, ischemia, or Crohn's disease. Trauma surgery demands rapid assessment and intervention in the most critically ill patients. Exploratory laparotomy serves as both diagnostic and therapeutic, allowing identification and repair of intra-abdominal injuries from penetrating or blunt trauma. Damage control surgery abbreviates initial operations in unstable patients, controlling hemorrhage and contamination while deferring definitive repair until physiology is restored. Chest tube placement, often performed emergently, addresses hemothorax and pneumothorax from thoracic trauma. Wound exploration determines depth and trajectory of penetrating injuries to guide further management. Understanding these procedures prepares sub-interns for the urgency and decision-making required in surgical emergencies. Vascular surgery addresses diseases of the arterial and venous systems requiring operative intervention. Carotid endarterectomy removes atherosclerotic plaque from the carotid artery to prevent stroke in patients with significant stenosis. Abdominal aortic aneurysm repair, open or endovascular, prevents rupture of enlarged aortic segments. Lower extremity bypass restores blood flow around occluded arterial segments using vein or prosthetic conduits. Amputation, while representing failed limb salvage, remains necessary when ischemia or infection renders the limb non-viable. Arteriovenous fistula creation provides durable dialysis access for patients with end-stage renal disease. Acute care surgery encompasses emergency general surgical conditions requiring prompt operative intervention. Acute appendicitis proceeds to appendectomy, with timing dependent on presentation and diagnostic certainty. Acute cholecystitis typically warrants cholecystectomy within seventy-two hours when possible. Small bowel obstruction may resolve with conservative management but requires surgery when complete, strangulated, or failing to improve. Perforated viscus from any cause necessitates exploration, source control, and washout. Incarcerated and strangulated hernias require urgent reduction and repair with bowel resection if necrosis has occurred. These conditions comprise a significant portion of surgical sub-intern experience. ![Common surgical procedures. Panel A: General surgery procedures including appendectomy, cholecystectomy, hernia repair, and colectomy. Panel B: Trauma operations including exploratory laparotomy, damage control, and chest tube placement. Panel C: Vascular procedures including carotid endarterectomy, AAA repair, and bypass surgery. Panel D: Acute care surgery presentations with corresponding operative interventions.](images/subintern_role_section7.png) --- ## Section VIII: Floor Management Managing multiple patients requires systematic organization that ensures consistent, thorough care for each individual. Developing a standard approach to patient assessment, used identically for every patient, prevents overlooking important elements even when time-pressured or fatigued. Brief, focused assessments allow coverage of a full patient panel while still detecting meaningful clinical changes. Prioritization places the sickest patients first and ensures they receive the most thorough attention. Documentation, particularly progress notes, should be completed before operating room commitments when possible to prevent end-of-day backlogs. Recognizing surgical complications early improves outcomes and demonstrates clinical acumen. Tachycardia out of proportion to pain or anxiety may signal hemorrhage, anastomotic leak, or pulmonary embolism. Fever developing after the initial post-operative period follows a differential of common causes organized by timing: early atelectasis, urinary tract infection, wound infection, and thromboembolic disease. Wound examination revealing expanding erythema, increasing drainage, or concerning odor demands immediate evaluation. Abdominal distension without passage of flatus suggests ileus or early obstruction. Maintaining high vigilance and low threshold for additional evaluation prevents complications from progressing unrecognized. Knowing when and how to escalate concerns ensures patient safety while demonstrating appropriate judgment. Unstable patients require immediate notification of the resident or attending, regardless of time of day or competing priorities. Concerns about bleeding, anastomotic leak, or acute abdominal changes warrant prompt senior evaluation. Unexpected diagnostic findings, particularly those that might alter management, should be communicated immediately. When uncertain whether a situation requires escalation, asking early demonstrates better judgment than delaying until problems compound. Framing these calls with clear information about the patient, the concern, and the desired assistance facilitates efficient communication. Sign-out responsibilities extend beyond simply listing patients to ensuring safe overnight coverage. Every patient should have a clear current status statement and anticipated overnight course. Potential complications and specific response plans guide covering providers unfamiliar with individual patient nuances. Clear documentation of code status and any limitations on intervention prevents confusion during emergencies. Weekend and holiday coverage plans must be explicit when the primary team will be unavailable. Thorough sign-out demonstrates ownership of patient care and concern for patient welfare beyond working hours. ![Floor management. Panel A: Strategies for managing multiple patients including systematic approach, prioritization, and documentation timing. Panel B: Early warning signs of complications including tachycardia, fever, wound changes, and distension. Panel C: Indications and approach for escalating concerns to senior team members. Panel D: Sign-out responsibilities including current status, anticipated issues, contingency plans, and coverage arrangements.](images/subintern_role_section8.png) --- ## Section IX: Professionalism in Surgery Surgical culture values traits that enable function in high-stakes, high-intensity environments. An extremely strong work ethic drives surgeons to do whatever is necessary to care for their patients, regardless of personal inconvenience. Constant availability ensures that patient needs can be addressed without delay, as surgical complications do not respect schedules. Decisiveness allows action when delay would harm the patient, accepting that incomplete information often requires judgment calls. Accountability means owning outcomes, both successful and complicated, without deflecting blame. These cultural expectations may seem demanding but reflect the serious responsibility of operating on patients. Difficult situations test professionalism and reveal character. Criticism, whether delivered harshly or constructively, should be accepted without defensiveness and incorporated into practice. Long hours and fatigue require active fatigue management strategies rather than dangerous attempts to power through impairment. Conflicts with team members, other services, or patients demand professional communication and de-escalation rather than emotional reactions. Medical errors, whether personal or systemic, require honest reporting and participation in improvement processes. Stress, inevitable in surgical training, necessitates healthy coping mechanisms including exercise, relationships outside of medicine, and professional support when needed. Building professional relationships creates support networks and career opportunities. Identifying mentors among attendings and senior residents provides guidance through challenging situations and career decisions. Peer relationships with fellow students and residents offer mutual support and shared learning. Treating all staff, from environmental services to senior nurses, with equal respect reflects appropriate values and creates a positive working environment. Letters of recommendation from attendings who have directly observed clinical performance carry significant weight in residency applications. Professional networking at conferences and through specialty interest groups expands horizons beyond the home institution. Preparing for surgical residency applications begins during the sub-internship. Clinical excellence, demonstrated through reliable patient care, thorough preparation, and engaged learning, forms the foundation for strong letters of recommendation. Research experience, whether basic science, clinical, or quality improvement, demonstrates scholarly aptitude and provides discussion topics for interviews. Away rotations at programs of interest allow exploration of different training environments and culture fit. Personal statements should articulate a genuine and compelling narrative for pursuing surgery. Interview preparation includes familiarity with each program, thoughtful questions, and practiced responses to common questions. Throughout the application process, maintaining integrity and authentic self-presentation serves better than posturing. ![Professionalism in surgery. Panel A: Surgical culture values including work ethic, availability, decisiveness, and accountability. Panel B: Approaches to handling criticism, long hours, conflict, errors, and stress. Panel C: Building relationships with mentors, peers, staff, and networking connections. Panel D: Residency preparation elements including clinical excellence, research, away rotations, and interview readiness.](images/subintern_role_section9.png) --- ## Section X: Surgical Skills Development Technical skill development begins with foundational tasks that can be practiced outside the operating room. Knot tying boards allow unlimited repetition to build speed and consistency in two-handed, one-handed, and instrument ties. Suturing practice on simulation materials develops proper needle handling, tissue approximation, and knot security. Instrument handling, including proper grip, passing technique, and tissue manipulation, becomes automatic only through repetition. Laparoscopic box trainers and virtual reality simulators build the eye-hand coordination required for minimally invasive surgery. Time invested in simulation directly translates to improved operating room performance and increased opportunities for meaningful participation. Clinical skills extend beyond technical proficiency to encompass comprehensive patient management. Pre-operative assessment skills, developed through evaluation of every assigned patient, build pattern recognition for surgical risk factors and optimization opportunities. Post-operative care follows protocols that become instinctive through systematic repetition. Wound care, including dressing changes, drain management, and complication recognition, requires hands-on practice under supervision. Surgical consultation follows a structured approach that becomes efficient with experience. Clinical decision-making, perhaps the most important skill, develops through active participation in case discussions and reflection on outcomes. Procedural competencies expected of surgical interns should be pursued during the sub-internship when opportunities arise. Central line placement, initially observed, progresses through assisted insertion to supervised independent placement. Arterial line insertion follows a similar progression. Chest tube placement, essential for trauma and thoracic emergencies, may be practiced on simulation before clinical opportunities. Wound closure, from simple interrupted to running subcuticular technique, should become independent by the end of the sub-internship. Drain removal requires understanding of indications, technique, and potential complications. Each procedure performed adds to competence and confidence entering residency. Continuous self-improvement distinguishes those who excel from those who merely complete training requirements. Seeking feedback after cases, specifically asking what could be done better, accelerates improvement. Reflecting on each day's events, noting successes and failures, builds self-awareness and identifies areas for focused development. Reading surgical textbooks systematically builds foundational knowledge, while journal articles provide updates on current practice. Simulation laboratory sessions provide protected time for skill development without patient risk. Video review of operations, when available, allows detailed analysis of technique. This commitment to continuous improvement, begun during the sub-internship, establishes habits that serve throughout a surgical career. ![Surgical skills development. Panel A: Technical skill practice including knot tying, suturing, instrument handling, and laparoscopic simulation. Panel B: Clinical skill development in pre-operative assessment, post-operative care, wound management, and decision-making. Panel C: Procedural competencies including central lines, arterial lines, chest tubes, and wound closure. Panel D: Self-improvement strategies including feedback, reflection, reading, simulation, and video review.](images/subintern_role_section10.png) --- ## Summary The surgery sub-internship provides intensive preparation for surgical residency through assumption of primary patient responsibility, integration into the surgical team, and progressive development of operative skills. Sub-interns manage assigned patients from admission through discharge, pre-rounding daily, presenting concisely, writing orders, and coordinating care. Understanding and respecting the surgical hierarchy enables effective collaboration with attendings, residents, and all team members. Surgical presentations must be brief and action-oriented, with the one-liner, SOAP format, and systematic sign-out serving as essential communication tools. Pre-operative duties include comprehensive assessment, verification of surgical readiness, and day-of-surgery participation in safety protocols. Post-operative care follows systematic assessment of recovery milestones while maintaining vigilance for complications. Operating room participation requires mastery of sterile technique, professional behavior, and progressive skill development through retraction, suturing, and camera driving. Floor management demands organization, complication recognition, appropriate escalation, and thorough sign-out. Professionalism in surgery means embracing the culture of hard work, accountability, and continuous improvement while building relationships and preparing for residency applications. Technical and clinical skills develop through simulation practice, hands-on experience, feedback seeking, and self-reflection. --- ## Key Terms **POD (Post-Operative Day)**: Standardized counting system for days following surgery, with the day of surgery being POD 0 and each subsequent day numbered sequentially. **NPO (Nil Per Os)**: Medical order indicating nothing by mouth, used pre-operatively to reduce aspiration risk and post-operatively until gastrointestinal function returns. **I&O (Intake and Output)**: Documentation of all fluids entering the patient (oral, intravenous) and exiting (urine, drains, stool), essential for monitoring fluid balance. **IS (Incentive Spirometry)**: Breathing exercise device used post-operatively to prevent atelectasis by encouraging deep breaths and lung expansion. **SCDs (Sequential Compression Devices)**: Pneumatic leg compression sleeves that reduce venous thromboembolism risk by preventing venous stasis during immobility. **Pre-rounding**: The practice of evaluating all assigned patients before team rounds, allowing the sub-intern to have current information and formulated plans. **Scrubbing in**: The process of surgical hand washing and sterile gowning and gloving that allows participation in the sterile operative field. **Time out**: Standardized pre-procedure pause involving all team members to verify correct patient, procedure, site, and safety measures before incision. --- *This content is subject to the [MIT License](https://opensource.org/licenses/MIT). © 2024–2026 Hibbert School of Medicine.*