General Surgery Principles Practice Questions

Q: A patient presents to the clinic with severe pain in the right lower quadrant, anorexia, and vomiting. Which of the following is NOT a sign of appendicitis?

Murphy's sign. **Explanation:** The correct answer is **Murphy’s sign**, as it is the classic clinical indicator for **acute cholecystitis**, not appendicitis. It is elicited by asking the patient to take a deep breath while the clinician maintains pressure under the right costal margin; a positive sign is the sudden cessation of inspiration (catch) due to the inflamed gallbladder hitting the examiner's hand. **Analysis of Options:** * **Rovsing’s sign:** This is a classic sign of appendicitis where palpation of the **left** lower quadrant causes pain in the **right** lower quadrant. This occurs due to the displacement of gas and peritoneal irritation. * **Obturator sign:** This indicates an inflamed appendix located in the **pelvic position**. It is elicited by internal rotation of the flexed right hip, which causes pain due to irritation of the obturator internus muscle. * **Psoas sign:** This indicates a **retrocecal appendix**. It is elicited by extending the right hip while the patient lies on their left side; the inflamed appendix irritates the iliopsoas muscle, causing pain. **NEET-PG High-Yield Pearls:** * **McBurney’s Point:** The most common site of maximal tenderness, located 1/3rd of the distance from the ASIS to the umbilicus. * **Sherren’s Triangle:** Formed by the ASIS, pubic tubercle, and umbilicus; hyperesthesia in this area suggests appendicitis. * **Aure-Rozanova’s Sign:** Increased pain on percussion over the right Petit’s triangle (common in retrocecal appendicitis). * **Alvarado Score (MANTRELS):** A score of $\geq$ 7 is highly suggestive of acute appendicitis.

Q: Mid tracheostomy is performed over which of the following anatomical landmarks?

3rd and 4th tracheal rings. **Explanation:** Tracheostomy is a life-saving surgical procedure where an opening is created in the anterior wall of the trachea. The classification of tracheostomy (High, Mid, or Low) is determined by its relationship to the **isthmus of the thyroid gland**, which typically overlies the 2nd, 3rd, and 4th tracheal rings. **1. Why Option B is Correct:** A **Mid Tracheostomy** is the most commonly performed elective procedure. It is performed at the level of the **3rd and 4th tracheal rings**. To access this site, the thyroid isthmus is either retracted upwards/downwards or divided and ligated. This level is preferred because it provides a stable airway while remaining far enough from the larynx to prevent long-term complications. **2. Analysis of Incorrect Options:** * **Option A (1st and 2nd rings):** This is a **High Tracheostomy**. It is generally avoided because proximity to the cricoid cartilage increases the risk of **perichondritis** and subsequent **subglottic stenosis**. * **Option C & D (5th ring and below):** These are **Low Tracheostomies**. They are technically difficult due to the increasing depth of the trachea as it follows the curvature of the spine. Furthermore, there is a high risk of injuring the **innominate artery** (brachiocephalic trunk) or causing a pneumothorax due to the high pleura. **Clinical Pearls for NEET-PG:** * **Emergency Airway:** In acute obstruction, **Cricothyroidotomy** is the procedure of choice (not tracheostomy). * **Most Common Complication:** Immediate (Hemorrhage); Late (Tracheal Stenosis). * **Bjork Flap:** An anteriorly based flap of the 3rd tracheal ring sewn to the skin to create a secure tract. * **Safe Zone:** The "Triangle of Safety" for tracheostomy is bounded by the sternocleidomastoid muscles laterally and the suprasternal notch inferiorly.

Q: Which of the following statements is not true of McBurney's incision?

The incision can be extended upwards or downwards.. ### Explanation **McBurney’s incision** (gridiron incision) is a muscle-splitting incision used primarily for appendicectomy. **1. Why Option D is the Correct Answer (The "Not True" Statement):** McBurney’s incision is a **muscle-splitting** incision where the fibers of the external oblique, internal oblique, and transversus abdominis are separated rather than cut. Because the fibers of these layers run in different directions, the incision is "self-closing" but **cannot be easily extended** upwards or downwards. If more exposure is required, it must be converted into a muscle-cutting incision (like Rutherford Morison) or a different approach must be used. **2. Analysis of Other Options:** * **Option A:** It is the classic approach for an appendicectomy when the diagnosis is certain. It provides direct access to the cecum and appendix. * **Option B:** If the gridiron incision is converted by cutting the internal oblique and transversus abdominis muscles laterally in the line of the skin incision, it becomes the **Rutherford Morison incision**, which provides better exposure for a retrocecal appendix or a difficult mobilization. * **Option C:** Damage to the **iliohypogastric or ilioinguinal nerves** during the incision can lead to paralysis of the conjoint tendon. This weakens the inguinal canal's posterior wall, making an **indirect inguinal hernia** a recognized late complication. ### High-Yield Clinical Pearls for NEET-PG: * **Lanz Incision:** A transverse skin incision in the right iliac fossa; it is cosmetically superior to McBurney’s as it follows Langer’s lines. * **Battle’s Incision:** A paramedian incision (rarely used now) that involves displacing the rectus muscle medially. * **Point of Incision:** McBurney’s point is located at the junction of the lateral one-third and medial two-thirds of a line joining the umbilicus to the Right Anterior Superior Iliac Spine (ASIS).

Q: What is true regarding a second-degree deep burn?

Dry white color. **Explanation:** Burns are classified based on the depth of tissue involvement. A **second-degree deep partial-thickness burn** extends into the deeper layers of the dermis (reticular dermis), damaging hair follicles and sweat glands. **Why "Dry white color" is correct:** In deep second-degree burns, the damage to the dermal vasculature is significant. The destruction of the superficial capillary plexus leads to a lack of perfusion, resulting in a **waxy white or mottled appearance**. Unlike superficial burns, these are often **dry** because the sweat glands and sebaceous units are compromised. **Analysis of Incorrect Options:** * **A & B (Blanches on pressure / Erythema):** These are hallmarks of **First-degree** or **Superficial Second-degree** burns. In deep burns, the capillary refill is absent because the dermal vessels are thrombosed. * **D (Painless):** While deep second-degree burns have decreased sensation (hypoalgesia) due to damage to nerve endings, they are typically **painful to deep pressure**. A completely **painless** (anesthetic) wound is characteristic of a **Third-degree (Full-thickness)** burn. **NEET-PG High-Yield Pearls:** * **Superficial 2nd Degree:** Characterized by **blisters**, extreme pain, and brisk capillary refill. * **Deep 2nd Degree:** Characterized by a **cheesy white** appearance and takes >3 weeks to heal, often requiring skin grafting to prevent hypertrophic scarring. * **Jackson’s Burn Zones:** The **Zone of Stasis** is the critical area surrounding the central necrosis that can either recover or progress to deeper injury depending on resuscitation. * **Gold Standard for Depth:** Laser Doppler Imaging (LDI) is the most accurate tool to assess burn depth clinically.

Q: Which condition is characterized by 'Hippocrates facies'?

Peritonitis. **Explanation:** **Hippocrates facies** (or Hippocratic face) is a classic clinical sign described by Hippocrates, representing the characteristic facial appearance of a patient nearing death due to prolonged illness, severe dehydration, or **generalized peritonitis**. **1. Why Peritonitis is Correct:** In advanced peritonitis, the systemic inflammatory response leads to massive fluid shifts (third-spacing) and severe dehydration. The "Hippocratic facies" is characterized by sunken eyes, hollow temples, a pinched nose, cold/livid ears with distorted lobes, and dry, lead-colored skin. This appearance is a result of extreme exhaustion, dehydration, and impending multi-organ failure associated with late-stage intra-abdominal sepsis. **2. Why the Other Options are Incorrect:** * **Pancreatitis:** While severe pancreatitis can lead to shock and dehydration, it is more specifically associated with signs of retroperitoneal hemorrhage, such as **Cullen’s sign** (periumbilical ecchymosis) or **Grey Turner’s sign** (flank ecchymosis). * **Facial Nerve Injury:** This results in facial asymmetry, drooping of the corner of the mouth, and inability to close the eye (Bell's palsy), but does not produce the systemic "sunken" look of Hippocrates facies. * **Marginal Mandibular Nerve Injury:** This is a branch of the facial nerve often injured during submandibular surgery. It results in the paralysis of the muscles that depress the lower lip, causing an asymmetrical smile. **High-Yield Clinical Pearls for NEET-PG:** * **Hippocrates Facies:** Think "The Face of Impending Death" or "Advanced Peritonitis." * **Risus Sardonicus:** The "sardonic grin" seen in **Tetanus** due to masseter muscle spasms. * **Leonine Facies:** The "lion-like" face seen in **Lepromatous Leprosy**. * **Mask-like Facies:** Seen in **Parkinsonism**.

Q: A 60-year-old diabetic male presented with cough, sputum production, fever with chills, and rigor. A chest X-ray was performed. Which of the following is an indication for surgery?

All of the above. The clinical presentation of cough, fever with chills, and rigor in a diabetic patient, combined with the context of a chest X-ray, strongly suggests a **Lung Abscess** or a complicated necrotizing pneumonia. While the primary treatment for a lung abscess is medical (prolonged antibiotics and postural drainage), surgical intervention is required in approximately 10-15% of cases. ### **Explanation of Options:** * **A. Failure to respond to medical management:** This is the most common indication. If there is no clinical or radiological improvement after 4–6 weeks of appropriate antibiotic therapy, or if the cavity is >6 cm (giant abscess), surgery (lobectomy or percutaneous drainage) is indicated. * **B. Suspected neoplasm:** In an elderly patient (60 years), an abscess may develop distal to an obstructing bronchogenic carcinoma. If malignancy cannot be ruled out by imaging or bronchoscopy, surgical resection is mandatory for both diagnosis and treatment. * **C. Hemorrhage:** Massive hemoptysis (typically >600 ml/24 hours) caused by the erosion of a bronchial artery into the abscess cavity is a life-threatening emergency requiring immediate surgical intervention or bronchial artery embolization. * **D. All of the above:** Since all three scenarios represent standard surgical indications for lung abscess, this is the correct choice. ### **High-Yield Clinical Pearls for NEET-PG:** * **Primary Treatment:** Medical management (Antibiotics like Clindamycin or Beta-lactam/beta-lactamase inhibitors) is successful in 85-90% of cases. * **Other Indications for Surgery:** Bronchopleural fistula, tension pyopneumothorax, and fungal infections (e.g., Mycetoma). * **Common Organisms:** Anaerobes (most common), *Staphylococcus aureus*, and *Klebsiella pneumoniae* (especially in diabetics/alcoholics). * **Surgical Procedure of Choice:** **Lobectomy** is preferred over segmentectomy to ensure complete removal of the infected tissue.

Q: Which of the following statements regarding vacuum-assisted closure is FALSE?

Continuous negative pressure is applied.. **Explanation:** Vacuum-Assisted Closure (VAC), also known as Negative Pressure Wound Therapy (NPWT), is a sophisticated wound management technique. The key to answering this question lies in understanding the **mode of pressure application.** **Why Option A is the correct (False) statement:** While VAC can be applied continuously, the standard and most effective protocol for promoting tissue growth is **intermittent negative pressure** (typically 5 minutes 'on' and 2 minutes 'off'). Intermittent cycles are superior to continuous pressure because they prevent the adaptation of mechanoreceptors, thereby providing repeated stimulus for cellular proliferation and angiogenesis. **Analysis of other options (True statements):** * **Option B (Granulation Tissue):** VAC creates mechanical stress (macrostrain and microstrain) on the wound bed, which stimulates fibroblasts and increases the expression of growth factors, significantly hastening the formation of healthy granulation tissue. * **Option C (Decreases Edema):** The negative pressure actively removes excess interstitial fluid and exudate. This reduction in local edema improves lymphatic drainage and decreases the diffusion distance for nutrients and oxygen. * **Option D (Increases Blood Flow):** By removing third-space fluid and reducing interstitial pressure, VAC leads to capillary vasodilation and increased localized perfusion, which is essential for wound healing. **High-Yield Clinical Pearls for NEET-PG:** * **Pressure Range:** The standard negative pressure used is **-125 mmHg**. * **Contraindications:** Malignancy in the wound, untreated osteomyelitis, non-enteric/unexplored fistulas, and placement directly over exposed major blood vessels or nerves. * **Mechanism:** It works via **Microstrain** (cell-level deformation leading to proliferation) and **Macrostrain** (visible contraction of wound edges).

Question 1

A patient presents to the clinic with severe pain in the right lower quadrant, anorexia, and vomiting. Which of the following is NOT a sign of appendicitis?

Accepted Answer

Murphy's sign

Answer

Rovsing's sign

Answer

Obturator sign

Answer

Psoas sign

Question 2

Mid tracheostomy is performed over which of the following anatomical landmarks?

Accepted Answer

3rd and 4th tracheal rings

Answer

1st and 2nd tracheal rings

Answer

5th and 6th tracheal rings

Answer

7th and 8th tracheal rings

Question 3

Which of the following statements is not true of McBurney's incision?

Accepted Answer

The incision can be extended upwards or downwards.

Answer

Most suitable if the diagnosis of appendicitis is definite.

Answer

If it is converted into a muscle cutting incision it is called Rutherford Morison's incision.

Answer

Inguinal hernia is a sequel of the incision.

Question 4

Which of the following is NOT included in the Alvarado score for appendicitis?

Accepted Answer

Leukocytosis

Answer

Migratory right iliac fossa pain

Answer

Nausea

Answer

Elevated temperature

Question 5

What is the most commonly used suture material in oral surgical procedures?

Accepted Answer

Black silk

Answer

Chromic gut

Answer

Polygalactin

Answer

Cotton

Question 6

What is the best treatment for a large cyst?

Accepted Answer

Marsupialisation followed by Enucleation

Answer

Enucleation

Answer

Marsupialisation

Answer

Enucleation followed by marsupialisation

Question 7

What is true regarding a second-degree deep burn?

Accepted Answer

Dry white color

Answer

Blanches on pressure

Answer

Erythema

Answer

Painless

Question 8

Which condition is characterized by 'Hippocrates facies'?

Accepted Answer

Peritonitis

Answer

Pancreatitis

Answer

Facial nerve injury

Answer

Marginal mandibular nerve injury

Question 9

A 60-year-old diabetic male presented with cough, sputum production, fever with chills, and rigor. A chest X-ray was performed. Which of the following is an indication for surgery?

Accepted Answer

All of the above

Answer

Failure to respond to medical management

Answer

Suspected neoplasm

Answer

Hemorrhage

Question 10

Which of the following statements regarding vacuum-assisted closure is FALSE?

Accepted Answer

Continuous negative pressure is applied.

Answer

It hastens the formation of granulation tissue.

Answer

It decreases edema.

Answer

It increases blood flow.

General Surgery Principles — MCQs

General Surgery Principles — MCQs

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