INI-CET 2025 — Surgery
13 Previous Year Questions with Answers & Explanations
A 40-year-old male presents to the emergency department with severe respiratory distress, BP: 70/59 mmHg, tracheal deviation to the right, distended neck veins, and absent breath sounds on the left side. These findings are suggestive of a tension pneumothorax. What is the most appropriate immediate next step in management?
A 35-year-old patient presents with colicky pain and is diagnosed with a ureteric stone. Which of the following is the best diagnostic investigation in this case?
Which of the following statements regarding Vacuum-Assisted Closure (VAC) therapy is correct? 1. It promotes granulation tissue formation 2. It reduces interstitial and periwound edema 3. It drains excessive exudate 4. It increases local blood flow
What is a true statement about Z plasty?
Identify the procedure shown in the image.
Imminent gangrene is seen at which Ankle-Brachial Pressure Index (ABPI)?
Which of the following is not a contraindication for breast conservation surgery?
Which of the following is not included in T4b classification of breast cancer?
A 25-year-old male presents with pain starting from the umbilicus moving to the right iliac fossa, associated with fever, nausea, and tenderness in the right iliac fossa. His WBC count is 14,000/cmm. What is the Alvarado score?
A 40-year-old male with head injury presents with respiratory distress and absent breath sounds on the right. GCS is 8/15. What is the most immediate next step in management?
INI-CET 2025 - Surgery INI-CET Practice Questions and MCQs
Question 1: A 40-year-old male presents to the emergency department with severe respiratory distress, BP: 70/59 mmHg, tracheal deviation to the right, distended neck veins, and absent breath sounds on the left side. These findings are suggestive of a tension pneumothorax. What is the most appropriate immediate next step in management?
- A. CT Chest
- B. Airway, breathing, and circulation (ABC) assessment
- C. Chest tube insertion
- D. Perform needle thoracostomy immediately (Correct Answer)
Explanation: ### **Explanation** The patient presents with the classic clinical triad of **Tension Pneumothorax**: respiratory distress, unilateral absent breath sounds with tracheal deviation, and hemodynamic instability (hypotension/distended neck veins). **1. Why Option D is Correct:** Tension pneumothorax is a **clinical diagnosis**. The immediate goal is to convert a life-threatening tension pneumothorax into a simple pneumothorax. **Needle thoracostomy (decompression)** must be performed immediately to relieve intrapleural pressure before obtaining imaging or waiting for a chest tube setup. Delaying decompression to confirm with a chest X-ray or CT can lead to cardiac arrest due to decreased venous return. **2. Why Other Options are Incorrect:** * **Option A (CT Chest):** This is contraindicated in an unstable patient. Diagnosis is clinical; waiting for imaging is a fatal error. * **Option B (ABC assessment):** While ABCs are the foundation of trauma care, the question asks for the "immediate next step" for a diagnosed tension pneumothorax. Decompression is the specific intervention required to address the "B" (Breathing) and "C" (Circulation) compromise. * **Option C (Chest tube insertion):** This is the **definitive** treatment, but it takes longer to set up. In an emergency with hemodynamic collapse, needle decompression is the bridge to chest tube placement. **3. Clinical Pearls for NEET-PG / INI-CET:** * **Needle Site (ATLS 10th Ed):** The preferred site is the **5th intercostal space**, just anterior to the mid-axillary line (same as chest tube). The 2nd ICS at the mid-clavicular line is an alternative but has a higher failure rate due to thick chest walls. * **Pathophysiology:** A "one-way valve" mechanism allows air into the pleural space but not out, causing **mediastinal shift**, compression of the SVC/IVC, and **obstructive shock**. * **Chest Tube Site:** 5th ICS, anterior to the mid-axillary line (within the **"Triangle of Safety"**). * **Diagnosis:** Never wait for a Chest X-ray. If an X-ray is inadvertently done, look for a "deep sulcus sign" or mediastinal shift.
Question 2: A 35-year-old patient presents with colicky pain and is diagnosed with a ureteric stone. Which of the following is the best diagnostic investigation in this case?
- A. Ureteroscopy
- B. Non-contrast CT KUB (Correct Answer)
- C. Ultrasonography KUB
- D. Contrast-enhanced CT KUB
Explanation: ### **Explanation** The clinical presentation of colicky pain in a 35-year-old is highly suggestive of **ureterolithiasis** (ureteric stones). **1. Why Non-contrast CT KUB (NCCT) is the Correct Answer:** * **Gold Standard:** NCCT KUB is currently the **investigation of choice** and the gold standard for diagnosing suspected urolithiasis. * **High Sensitivity and Specificity:** It has a sensitivity of >95% and specificity of >97%. It can detect almost all types of stones (including **radiolucent uric acid stones**), except for rare indinavir stones. * **Anatomical Detail:** It accurately determines stone size, precise location, and **Hounsfield Units (HU)** (stone density), which helps predict the success of ESWL. It also identifies secondary signs of obstruction like hydroureteronephrosis or "stranding" of perinephric fat. **2. Why Other Options are Incorrect:** * **Ureteroscopy (URS):** This is a **therapeutic** intervention (treatment) rather than a primary diagnostic tool. It is invasive and reserved for stone removal. * **Ultrasonography (USG) KUB:** While safe (no radiation) and useful for detecting hydronephrosis, it is **operator-dependent** and often misses small ureteric stones, especially in the mid-ureter. It is the first-line investigation only in **pregnant women** and children. * **Contrast-enhanced CT (CECT):** Contrast is generally **not required** for stone diagnosis. In fact, the excreted contrast in the ureter can mask the stone (both appear white/hyperdense), making diagnosis difficult. **3. High-Yield Clinical Pearls for INI-CET:** * **Indinavir Stones:** The only stones that are **radiolucent on NCCT**. * **KUB X-ray:** Misses ~10-15% of stones (radiolucent stones like Uric acid, Cysteine, and Xanthine). * **Stone Density (HU):** Stones with **>1000 HU** are hard (e.g., Calcium Oxalate Monohydrate) and respond poorly to ESWL; stones **<500 HU** are softer. * **Phleboliths vs. Stones:** NCCT helps differentiate pelvic phleboliths from ureteric stones via the **"Comet tail sign"** (seen in phleboliths).
Question 3: Which of the following statements regarding Vacuum-Assisted Closure (VAC) therapy is correct? 1. It promotes granulation tissue formation 2. It reduces interstitial and periwound edema 3. It drains excessive exudate 4. It increases local blood flow
- A. All correct (Correct Answer)
- B. 1 and 3 correct
- C. 2 and 4 correct
- D. 1, 2, 3 correct
Explanation: ### **Explanation: Vacuum-Assisted Closure (VAC) Therapy** **Vacuum-Assisted Closure (VAC)**, also known as **Negative Pressure Wound Therapy (NPWT)**, is a sophisticated wound management system that utilizes controlled sub-atmospheric pressure (typically **-125 mmHg**) to accelerate healing. #### **Why "All Correct" is the Right Answer:** The therapeutic effects of VAC are mediated through two primary mechanisms: **Macro-deformation** (visible contraction of the wound) and **Micro-deformation** (mechanical stress at the cellular level). 1. **Promotes Granulation Tissue:** Mechanical stretching of cells (micro-strain) triggers **mechanotransduction**, which stimulates fibroblast proliferation and the synthesis of extracellular matrix, leading to rapid granulation. 2. **Reduces Edema:** The negative pressure creates a pressure gradient that removes stagnant interstitial fluid. This reduces hydrostatic pressure on local capillaries, improving tissue perfusion. 3. **Drains Exudate:** The system continuously removes wound secretions and debris, which often contain inhibitory inflammatory cytokines and bacteria, maintaining a moist but clean environment. 4. **Increases Local Blood Flow:** By reducing periwound edema and stimulating **angiogenesis**, VAC significantly enhances micro-circulation and oxygen delivery to the wound bed. #### **High-Yield Clinical Pearls for INI-CET:** * **Pressure Settings:** The standard gold-standard pressure is **-125 mmHg** (continuous or intermittent). * **Contraindications (High Yield):** * Malignancy in the wound. * Untreated osteomyelitis. * **Exposed major blood vessels or organs** (risk of massive hemorrhage). * Non-enteric or unexplored fistulas. * Necrotic tissue with eschar (must be debrided first). * **Components:** Uses an open-cell **polyurethane foam** (black) or polyvinyl alcohol foam (white), an adhesive drape, and a suction pump. * **Key Benefit:** It significantly reduces the frequency of dressing changes and prepares the wound bed for definitive closure (e.g., skin grafting).
Question 4: What is a true statement about Z plasty?
- A. To increase length (Correct Answer)
- B. It is a type of split-thickness skin graft
- C. Zigzag suturing
- D. Flap turning
Explanation: ### **Explanation: Z-Plasty** **Z-plasty** is a versatile transposition flap technique used extensively in reconstructive surgery. It involves the creation of two triangular flaps of equal size that are transposed (swapped) to change the direction of a scar and gain length. #### **Why Option A is Correct** The primary biomechanical goal of a Z-plasty is **lengthening in the direction of the central limb**. When the two triangular flaps are transposed, the central limb of the "Z" rotates 90 degrees. This results in: * **Gain in length** along the axis of the original central limb. * **Contraction (shortening)** in the perpendicular axis. This makes it the gold standard for **releasing linear scar contractures** (e.g., across a joint or a burn web). #### **Why Other Options are Incorrect** * **Option B:** Z-plasty is a **local transposition flap**, not a skin graft. Flaps maintain their own blood supply, whereas grafts (split or full-thickness) rely on the recipient bed for nutrition. * **Option C:** While the final scar has a "zigzag" appearance, "zigzag suturing" is a vague descriptive term. The fundamental surgical principle is **transposition**, not just the suturing pattern. * **Option D:** "Flap turning" is imprecise. The specific movement is **transposition** (moving a flap across a bridge of intact skin to a new position). --- ### **High-Yield Clinical Pearls for INI-CET** * **The 60° Rule:** The standard Z-plasty uses **60° angles**. This provides a theoretical **75% increase in length**. * 30° angle $\rightarrow$ 25% length gain. * 45° angle $\rightarrow$ 50% length gain. * 75°+ angles are rarely used due to excessive tension and risk of tip necrosis. * **Indications:** Realigning scars with **Langer’s lines** (Relaxed Skin Tension Lines), breaking up linear scars to make them less visible, and releasing webbed contractures. * **Prerequisite:** There must be adequate **lateral skin laxity** to allow for the transposition.
Question 5: Identify the procedure shown in the image.
- A. Dog ear excision (Correct Answer)
- B. Keloid excision
- C. Z plasty
- D. Transposition flap
Explanation: ### **Explanation: Dog Ear Excision** **1. Why the Correct Answer is Right:** A **"Dog ear"** (also known as a cone or cutaneous redundancy) occurs during the closure of a circular or elliptical wound when one side of the wound is longer than the other, or when the closure angle is too obtuse. This results in a **puckered elevation of skin** at the ends of the suture line. * **The Procedure:** To correct this, the surgeon extends the incision slightly, creates a small triangular flap of the redundant tissue, and excises it to allow the skin to lie flat. This converts the wound into a slightly longer, but aesthetically pleasing, linear scar. **2. Why the Other Options are Wrong:** * **Keloid Excision:** Keloids are firm, rubbery lesions that extend beyond the boundaries of the original wound. Excision involves removing the entire bulk of hypertrophic tissue, often followed by adjuvant therapy (like intralesional steroids) to prevent recurrence. * **Z-plasty:** This is a transposition flap technique used to **lengthen a scar** or change its direction to align with Relaxed Skin Tension Lines (RSTLs). It involves creating two triangular flaps that are transposed. * **Transposition Flap:** This involves moving a flap of skin and subcutaneous tissue over an incomplete bridge of intact skin to a nearby defect (e.g., Limberg flap). It does not specifically address the puckering seen at the ends of a simple closure. **3. High-Yield Clinical Pearls for INI-CET:** * **Prevention:** To avoid dog ears, the length of an elliptical incision should ideally be **3 times its width**, and the apical angle should be **less than 30 degrees**. * **Rule of Halves:** When suturing, always start at the center of the wound and bisect the remaining segments to distribute tension evenly and minimize the risk of dog ears. * **Mnemonic:** Dog ears are most common in **convex surfaces** (like the scalp or nose) where skin tension is non-uniform.
Question 6: Imminent gangrene is seen at which Ankle-Brachial Pressure Index (ABPI)?
- A. 0.3 (Correct Answer)
- B. 0.9
- C. 0.7
- D. 0.5
Explanation: ### **Explanation** The **Ankle-Brachial Pressure Index (ABPI)** is a non-invasive tool used to assess Peripheral Arterial Disease (PAD). It is calculated by dividing the higher systolic blood pressure at the ankle (PTA or DPA) by the higher systolic blood pressure of the arms. **1. Why 0.3 is the Correct Answer:** An ABPI of **<0.3** indicates **critical limb ischemia (CLI)** and **imminent gangrene**. At this level, the perfusion pressure is insufficient to maintain tissue viability even at rest. This stage is clinically characterized by **rest pain**, non-healing ischemic ulcers, and impending tissue necrosis (gangrene). **2. Analysis of Incorrect Options:** * **0.9 (Option B):** This is the lower limit of **normal**. An ABPI between 0.9 and 1.2 is considered healthy. Values between 0.7 and 0.9 indicate mild PAD, often asymptomatic. * **0.7 (Option C):** This indicates **mild to moderate PAD**. Patients at this level typically present with **intermittent claudication** (pain on walking that relieved by rest). * **0.5 (Option D):** This signifies **severe PAD**. While patients have significant symptoms and a high risk of cardiovascular events, "imminent gangrene" is specifically associated with values dropping below 0.4 or 0.3. --- ### **High-Yield Clinical Pearls for NEET-PG / INI-CET** * **ABPI Interpretation Summary:** * **>1.2:** Calcified, non-compressible vessels (commonly seen in **Diabetes Mellitus** and elderly patients). Use Toe-Brachial Index (TBI) instead. * **0.9 – 1.2:** Normal. * **0.5 – 0.9:** Intermittent Claudication. * **<0.4:** Rest Pain. * **<0.3:** Imminent Gangrene / Critical Limb Ischemia. * **Fontaine Classification:** Remember that ABPI <0.3 correlates with Fontaine Stage IV (Ulceration/Gangrene). * **Management Tip:** Patients with ABPI <0.5 or rest pain require urgent surgical or endovascular intervention to prevent limb loss.
Question 7: Which of the following is not a contraindication for breast conservation surgery?
- A. Scleroderma
- B. History of radiation
- C. Multiple cancer in one quadrant (Correct Answer)
- D. Persistent positive margin
Explanation: ### **Explanation: Contraindications for Breast Conservation Surgery (BCS)** Breast Conservation Surgery (BCS) followed by radiotherapy is the standard of care for early breast cancer. However, certain conditions make the procedure oncologically unsafe or technically impossible. #### **Why "Multiple cancer in one quadrant" is the Correct Answer** The key distinction in breast surgery is between **Multifocal** and **Multicentric** tumors: * **Multifocal Cancer:** Multiple tumor foci within the **same quadrant** of the breast. This is **not** a contraindication for BCS, provided the tumors can be excised through a single incision with clear margins and an acceptable cosmetic result. * **Multicentric Cancer:** Multiple tumors in **different quadrants**. This is an **absolute contraindication** because it would require multiple wide excisions, leading to poor cosmesis and a high risk of local recurrence. #### **Analysis of Incorrect Options (Absolute Contraindications)** * **Scleroderma (Option A):** Connective tissue diseases (specifically Scleroderma and Systemic Lupus Erythematosus) are contraindications because these patients tolerate radiotherapy poorly, often developing severe **soft tissue fibrosis** and necrosis. * **History of Radiation (Option B):** If a patient has previously received mantle field radiation (e.g., for Hodgkin’s Lymphoma) or prior breast radiation, they cannot receive the mandatory post-operative radiotherapy required after BCS due to **cumulative dose toxicity**. * **Persistent Positive Margin (Option D):** The goal of BCS is "no tumor at the ink." If clear margins cannot be achieved after repeated re-excisions, a mastectomy is mandatory to ensure oncological safety. --- ### **High-Yield Clinical Pearls for NEET-PG / INI-CET** * **Absolute Contraindications for BCS:** 1. **Pregnancy** (Radiotherapy is teratogenic; however, BCS can sometimes be done in the 3rd trimester if radiation is delayed until after delivery). 2. **Multicentricity** (Tumors in different quadrants). 3. **Diffuse Malignant Microcalcifications** on mammography. 4. **Persistent positive margins** after re-excision. * **Relative Contraindications:** Large tumor-to-breast ratio, tumors >5cm (T3), and active smoking (increases flap necrosis risk). * **Standard Protocol:** BCS is always followed by **Whole Breast Irradiation (WBI)** to reduce the risk of local recurrence.
Question 8: Which of the following is not included in T4b classification of breast cancer?
- A. Satellite nodule
- B. Ulceration
- C. Peau d'orange
- D. Cellulitis/erythema over one-third of the breast (inflammatory breast cancer) (Correct Answer)
Explanation: ### **Explanation: TNM Staging of Breast Cancer (T4 Category)** The **T4 stage** in breast cancer refers to a tumor of any size with direct extension to the chest wall and/or to the skin (ulceration or skin nodules). It is subdivided into four specific categories (T4a–T4d). #### **Why Option D is the Correct Answer** **Option D (Cellulitis/erythema over one-third of the breast)** describes **Inflammatory Breast Cancer (IBC)**. According to the AJCC 8th Edition, IBC is specifically classified as **T4d**. * **Key Criterion:** T4d requires diffuse erythema and edema (peau d'orange) involving **at least one-third or more** of the skin of the breast, often without a palpable mass. #### **Analysis of Incorrect Options (T4b Criteria)** **T4b** is defined as edema (including peau d'orange) or ulceration of the skin of the breast, or satellite skin nodules confined to the same breast. * **A. Satellite nodules:** These are ipsilateral skin nodules distinct from the primary tumor; they fall under T4b. * **B. Ulceration:** Direct skin involvement with breakdown of the epidermis is a classic T4b feature. * **C. Peau d'orange:** This "orange peel" appearance is caused by **dermal lymphatic invasion** leading to skin edema. If it does not meet the "one-third of the breast" threshold for inflammatory cancer, it is classified as T4b. #### **High-Yield Clinical Pearls for INI-CET** * **T4a:** Extension to the **chest wall** (defined as involvement of serratus anterior, ribs, or intercostal muscles). *Note: Involvement of the pectoralis muscle alone is NOT T4.* * **T4c:** Presence of both T4a and T4b features. * **Dimpling vs. Peau d'orange:** Skin dimpling (tethering) is due to involvement of **Cooper’s ligaments** and does not constitute T4 disease; Peau d'orange is due to **lymphatic obstruction** and is T4. * **Inflammatory Breast Cancer (T4d):** Is a **clinical diagnosis**. While dermal lymphatic invasion on biopsy supports it, its absence does not exclude the diagnosis if clinical criteria are met.
Question 9: A 25-year-old male presents with pain starting from the umbilicus moving to the right iliac fossa, associated with fever, nausea, and tenderness in the right iliac fossa. His WBC count is 14,000/cmm. What is the Alvarado score?
- A. 6
- B. 4
- C. 5
- D. 7 (Correct Answer)
Explanation: The **Alvarado Score** (MANTRELS) is a clinical scoring system used to diagnose **Acute Appendicitis**. It is a high-yield topic for NEET-PG/INI-CET as it helps determine the need for observation, imaging, or surgery. ### **Calculation for this Patient:** The score is calculated based on the **MANTRELS** mnemonic: 1. **M**igration of pain to RIF: **1 point** (Present) 2. **A**norexia: 1 point (Not mentioned) 3. **N**ausea/Vomiting: **1 point** (Present) 4. **T**enderness in RIF: **2 points** (Present) 5. **R**ebound tenderness: 1 point (Not mentioned) 6. **E**levated temperature (>37.3°C): **1 point** (Present/Fever) 7. **L**eukocytosis (>10,000/cmm): **2 points** (Present: 14,000) 8. **S**hift to the left (Neutrophilia): 1 point (Not mentioned) **Total Score: 1 + 1 + 2 + 1 + 2 = 7** --- ### **Why the other options are incorrect:** * **Options A (6) and C (5):** These scores underestimate the weightage of **RIF Tenderness** and **Leukocytosis**, which are the only two parameters that carry **2 points** each. * **Option B (4):** A score of 4 or less makes appendicitis unlikely, whereas this patient presents with classic "textbook" symptoms and significant leukocytosis. --- ### **Clinical Pearls for INI-CET:** * **Interpretation:** * **5–6:** Possible (Equivocal); observation/CT scan recommended. * **7–8:** Probable; surgery usually indicated. * **9–10:** Very probable; immediate appendectomy. * **Modified Alvarado Score:** Excludes "Shift to the left" (Total score out of 9). * **Most common symptom:** Anorexia (often the first sign). * **Most common sign:** Tenderness at **McBurney’s point**. * **Pediatric Alternative:** The **Pediatric Appendicitis Score (PAS)** is often preferred for children.
Question 10: A 40-year-old male with head injury presents with respiratory distress and absent breath sounds on the right. GCS is 8/15. What is the most immediate next step in management?
- A. Secure airway (Correct Answer)
- B. Contrast-enhanced CT (CECT)
- C. Oxygen by nasal prongs
- D. Intercostal chest drain (ICD)
Explanation: ### **Explanation** The management of a trauma patient follows the **ATLS (Advanced Trauma Life Support) protocol**, which prioritizes life-threatening conditions in the order of **A (Airway), B (Breathing), and C (Circulation)**. **1. Why "Secure Airway" is the correct answer:** * The patient has a **GCS of 8/15**. In trauma management, the gold-standard rule is: **"GCS 8 or less, Intubate."** * A GCS ≤ 8 indicates that the patient is unable to maintain or protect their own airway, posing a high risk of aspiration and secondary brain injury due to hypoxia. * According to the **ABCDE priority**, Airway (A) must be secured before addressing Breathing (B) or Circulation (C). **2. Why the other options are incorrect:** * **CECT (Option B):** This is part of the secondary survey. A patient must be **hemodynamically stable** and have a secured airway before being sent for imaging. * **Oxygen by nasal prongs (Option C):** While oxygenation is necessary, nasal prongs are insufficient for a patient with a GCS of 8 who requires definitive airway protection (Endotracheal Intubation). * **Intercostal chest drain (Option D):** Absent breath sounds suggest a pneumothorax or hemothorax (Breathing issue). However, following the **ATLS hierarchy**, you must secure the **Airway (A)** before performing a procedure for **Breathing (B)**. --- ### **High-Yield Clinical Pearls for INI-CET:** * **Definitive Airway:** Defined as a tube placed in the trachea with the cuff inflated below the vocal cords, connected to oxygen-enriched ventilation. * **The "A" before "B" Rule:** Even if a tension pneumothorax is suspected, if the airway is compromised (GCS ≤ 8), securing the airway/intubation is the immediate priority unless the breathing difficulty is so severe it prevents oxygenation during the intubation attempt. * **Cervical Spine:** Always assume a C-spine injury in head trauma; use **Manual Inline Stabilization (MILS)** during intubation. * **Hard Sign for Intubation:** GCS < 9, massive midface fractures, or signs of airway obstruction (stridor).