General Surgery Principles Practice Questions

Q: What is the most appropriate treatment for a desmoid tumor diagnosed in the abdomen?

Surgery. ### Explanation **Correct Answer: D. Surgery** **Understanding the Concept:** A desmoid tumor (also known as aggressive fibromatosis) is a benign but locally aggressive fibroblastic proliferation. In the context of the abdomen, these tumors most commonly arise from the musculoaponeurotic structures of the abdominal wall or the mesentery. The **primary treatment of choice for a resectable desmoid tumor is wide local surgical excision** with negative margins (R0 resection). Despite being histologically benign (no metastasis), they have a high propensity for local recurrence, making surgical precision crucial. **Analysis of Incorrect Options:** * **A & B (Chemotherapy and Radiation):** These are not first-line treatments. They are typically reserved for recurrent cases, unresectable tumors, or patients who are poor surgical candidates. Radiation carries a risk of secondary malignancies and is generally avoided in young patients or those with Gardner syndrome. * **C (Combined Therapy):** While multimodal therapy exists for aggressive recurrences, it is not the standard initial approach for a primary, diagnosable abdominal desmoid tumor. **NEET-PG High-Yield Pearls:** * **Association:** Desmoid tumors are strongly associated with **Familial Adenomatous Polyposis (FAP)**, specifically **Gardner Syndrome**. In FAP patients, they are a leading cause of death after colorectal cancer. * **Location:** The most common site is the **rectus abdominis muscle**, often seen in postpartum women due to trauma or hormonal influences (estrogen). * **Pathology:** They are characterized by the proliferation of spindle cells and are often positive for **nuclear β-catenin** staining. * **Management Trend:** While surgery is the traditional answer, "Watchful Waiting" is increasingly considered for asymptomatic, stable extra-abdominal tumors; however, for abdominal wall tumors, surgery remains the definitive gold standard.

Q: Bassini's repair is indicated for which type of hernia?

Inguinal hernia. **Explanation:** **Bassini’s repair** is a classic "tissue-to-tissue" tension repair primarily used for **Inguinal hernias**. The underlying anatomical principle involves strengthening the posterior wall of the inguinal canal. In this procedure, the conjoined tendon (internal oblique and transversus abdominis muscles) is sutured to the incurving part of the inguinal ligament (Poupart’s ligament). This reinforces the floor of the canal, making it the gold-standard tissue repair before the advent of tension-free mesh repairs (Lichtenstein). **Analysis of Incorrect Options:** * **B. Femoral hernia:** These occur through the femoral canal, below and lateral to the pubic tubercle. Common repairs include **McVay’s repair** (which sutures the conjoined tendon to Cooper’s ligament) or the **Low (McEvedy)** and **High (Lotheissen’s)** approaches. * **C. Spigelian hernia:** This is a ventral hernia occurring through the Spigelian fascia (linear semilunaris). It requires primary closure or mesh reinforcement, not a canal-specific repair like Bassini’s. * **D. Epigastric hernia:** These occur through the linea alba between the xiphoid process and the umbilicus. Treatment involves simple primary closure or mesh hernioplasty. **High-Yield Clinical Pearls for NEET-PG:** * **Lichtenstein Repair:** Currently the "Gold Standard" for inguinal hernia; it is a **tension-free** repair using polypropylene mesh. * **Shouldice Repair:** The best tissue-to-tissue repair with the lowest recurrence rate (involves four layers of continuous suturing). * **Modified Bassini:** Unlike the original, this typically excludes the transversalis fascia to avoid excessive tension. * **Nerves at risk:** During inguinal hernia surgery, the **Ilioinguinal nerve** is the most commonly injured nerve, leading to numbness over the scrotum/labia and medial thigh.

Q: Which surgical blade number is most useful for performing a tracheotomy?

11. **Explanation:** The correct answer is **11**. **1. Why Blade No. 11 is the Correct Choice:** Blade No. 11 is a triangular, pointed blade with a sharp hypotenuse, often referred to as a "stab blade." In a tracheotomy (specifically the formal surgical procedure or an emergency cricothyroidotomy), the primary requirement is a precise, controlled **stab incision** into the trachea or cricothyroid membrane. Its pointed tip allows for easy penetration of the tough tracheal rings or fibroelastic membrane, and its straight edge allows for the upward extension of the incision to accommodate the tracheostomy tube. **2. Analysis of Incorrect Options:** * **Blade No. 10:** This is the standard large, curved blade used for making long, deep incisions in skin and muscle (e.g., laparotomy). It lacks the fine point needed for the precise "stab" required in airway management. * **Blade No. 15:** This is a small, curved blade used for delicate work or small skin incisions (e.g., plastic surgery or biopsies). While it can be used for the skin incision in a tracheotomy, it is less efficient than No. 11 for the actual tracheal entry. * **Blade No. 22:** This is a larger version of the No. 10 blade, used for heavy-duty incisions in thick skin or fascia. It is too bulky for the delicate anatomy of the neck and trachea. **3. High-Yield Clinical Pearls for NEET-PG:** * **Blade No. 11** is also the blade of choice for **Incision and Drainage (I&D)** of abscesses and for performing **arteriotomies** (e.g., in embolectomy or vascular bypass). * **Tracheostomy Site:** Usually performed between the **2nd and 3rd or 3rd and 4th tracheal rings**. * **Emergency Airway:** In an acute "cannot intubate, cannot ventilate" scenario, a **cricothyroidotomy** is preferred over a tracheostomy as it is faster and anatomically more superficial.

Q: Which of the following is NOT a basic rule for wound closure?

Wound edges should be inverted.. **Explanation:** The primary goal of wound closure is to achieve primary intention healing with minimal scarring. The fundamental rule for skin closure is that **wound edges should be everted (turned outward), not inverted.** 1. **Why "Wound edges should be inverted" is the correct answer (The False Statement):** Inversion of wound edges (turning the skin edges inward) leads to a "dead space" where the epidermal layers meet instead of the dermal layers. Since the epidermis does not heal to itself, this results in poor wound strength, increased risk of infection, and a depressed, unsightly scar. Proper technique involves **eversion**, which ensures maximum dermal-to-dermal contact. As the wound heals and the scar contracts, an everted edge eventually flattens out to a level surface. 2. **Analysis of other options:** * **Option A:** Leaving edges slightly gaping is sometimes necessary in traumatic or contaminated wounds to allow for inflammatory edema and drainage, preventing tension-induced ischemia. * **Option C:** Placing the knot to one side (rather than directly over the incision line) prevents the knot from being buried in the healing wound, reduces irritation, and makes suture removal easier. * **Option D:** Secure knots are essential for wound integrity. Leaving "tails" long enough ensures they can be easily identified and grasped with forceps during removal. **Clinical Pearls for NEET-PG:** * **"Eversion is Perfection":** Use the **Vertical Mattress suture** (the "Far-Far, Near-Near" technique) as the gold standard for achieving wound edge eversion. * **Langer’s Lines:** Always try to make incisions parallel to these tension lines for the best cosmetic results. * **Tension:** Sutures should be "apposed, not opposed." Excessive tension leads to tissue strangulation and necrosis.

Q: What is the concentration of Potassium in Ringer's Lactate solution?

4 mEq/L. **Explanation:** Ringer's Lactate (RL), also known as Hartmann's solution, is a balanced crystalloid solution designed to closely mimic the electrolyte composition of human plasma. It is the fluid of choice for resuscitation in burns and hemorrhagic shock. **1. Why Option B is Correct:** The concentration of **Potassium (K+) in Ringer's Lactate is 4 mEq/L**. This concentration is intentionally set to reflect the normal physiological range of potassium in human extracellular fluid (3.5–5.0 mEq/L). Because it contains potassium, RL must be used with caution in patients with renal failure or hyperkalemia. **2. Why Other Options are Incorrect:** * **Options A and C (1 & 2 mEq/L):** These concentrations are too low to maintain physiological homeostasis in a balanced salt solution. * **Option D (6 mEq/L):** This exceeds the normal physiological limit of plasma potassium. Infusing a solution with 6 mEq/L as a primary maintenance or resuscitation fluid could inadvertently induce iatrogenic hyperkalemia. **3. High-Yield Clinical Pearls for NEET-PG:** * **Composition of RL (per Liter):** * Sodium (Na+): 130–131 mEq/L (Hypotonic compared to Normal Saline) * Chloride (Cl-): 109–111 mEq/L * Lactate: 28 mEq/L (Converted to bicarbonate in the liver; useful in metabolic acidosis) * Calcium (Ca2+): 3 mEq/L * **Contraindication:** Do not co-administer RL with blood transfusions in the same IV line. The **Calcium** in RL can bind to the **Citrate** anticoagulant in stored blood, leading to clot formation. * **Metabolic Note:** RL is contraindicated in patients with severe liver disease because they cannot metabolize lactate into bicarbonate, potentially worsening lactic acidosis.

Q: A child undergoing CECT chest develops immediate swelling at the contrast injection site, progressing gradually. The child also reports numbness and pain on passive finger extension, and examination reveals a feeble radial pulse. What is the most appropriate next step?

Immediate fasciotomy. ### Explanation The clinical presentation describes a severe case of **Contrast Extravasation** leading to **Acute Compartment Syndrome**. **1. Why "Immediate Fasciotomy" is Correct:** The key clinical markers here are **pain on passive extension**, **numbness** (paresthesia), and a **feeble radial pulse**. These are the "Ps" of compartment syndrome. When contrast is injected under pressure (especially via power injectors in CECT), a large volume can enter the tight fascial compartments of the limb. This increases intracompartmental pressure, compromising capillary perfusion and leading to tissue ischemia. If neurovascular compromise is evident (feeble pulse, sensory loss), it is a surgical emergency requiring **immediate fasciotomy** to decompress the compartment and prevent permanent necrosis or Volkmann’s Ischemic Contracture. **2. Why Other Options are Incorrect:** * **A. High dose prednisolone and antihistamines:** These are used for *anaphylactoid* (hypersensitivity) reactions. They do not address the mechanical pressure/ischemia caused by extravasation. * **B. Angiography:** This would cause further delay and potentially involve more contrast injection, worsening the pressure. Diagnosis of compartment syndrome is primarily clinical. * **D. Surgical exploration:** While related, "exploration" is too vague. The specific life-and-limb-saving procedure required for compartment syndrome is a fasciotomy. **3. Clinical Pearls for NEET-PG:** * **Risk Factors:** Use of power injectors, small/fragile veins (infants/elderly), and unconscious patients who cannot report pain. * **Initial Management:** For *mild* extravasation, elevate the limb and apply cold compresses. * **The "6 Ps" of Compartment Syndrome:** Pain (out of proportion), Pallor, Paresthesia, Pulselessness, Paralysis, and Poikilothermia. * **Gold Standard Diagnosis:** Clinical exam; however, a compartment pressure **>30 mmHg** is diagnostic.

Q: What is the ideal treatment of alveolar osteitis after dental extraction?

Debridement of socket and sedative dressing. **Explanation:** **Alveolar Osteitis**, commonly known as **"Dry Socket,"** is a painful condition occurring 3–5 days post-extraction due to the premature lysis or loss of the blood clot. This exposes the underlying alveolar bone to oral fluids and bacteria, leading to localized osteitis. **Why Option C is Correct:** The primary goal of treatment is **pain management** and promoting secondary intention healing. The standard protocol involves: 1. **Gentle Debridement:** Irrigating the socket with warm saline to remove food debris and necrotic tissue. 2. **Sedative Dressing:** Placing a medicated dressing (typically **Zinc Oxide Eugenol** or Alvogyl) into the socket. Eugenol acts as a local anesthetic and obtundent, providing immediate relief from the characteristic radiating pain. **Why Other Options are Incorrect:** * **A & B (Antibiotics):** Dry socket is primarily a physical loss of the clot leading to inflammation, not a systemic or localized infection requiring antibiotics. They do not provide pain relief or accelerate healing in this context. * **D (Curettage):** This is **contraindicated**. Aggressive curettage to induce bleeding can spread the localized inflammation into the deeper bone, potentially causing true osteomyelitis. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors:** Smoking (most common), oral contraceptives, traumatic extraction, and mandibular third molar extractions. * **Clinical Feature:** Severe, throbbing pain radiating to the ear, accompanied by a foul odor (halitosis) and an empty-looking socket. * **Pathophysiology:** Increased **fibrinolysis** (plasminogen conversion to plasmin) which dissolves the clot. * **Management:** It is a self-limiting condition; treatment is purely symptomatic.

Q: What is considered the best type of dressing for a surgical wound?

Skin. **Explanation:** The primary goal of a surgical dressing is to provide a sterile environment, absorb exudate, and facilitate healing. While various synthetic materials exist, **Skin** is considered the "best" or "ideal" biological dressing. **1. Why Skin is the Correct Answer:** Intact skin is the most physiological dressing available. In the context of surgery, particularly in burns or large reconstructive procedures, **autologous skin** (autograft) is the gold standard. It provides an absolute barrier against infection, prevents fluid and electrolyte loss, reduces pain, and promotes definitive wound closure. No synthetic material can perfectly replicate the complex immunological and mechanical properties of human skin. **2. Analysis of Incorrect Options:** * **Opsite (Option A):** This is a transparent, adhesive polyurethane film. While excellent for providing a moist environment and allowing wound visualization, it is a synthetic dressing and cannot match the biological integration of skin. * **Amnion (Option B):** Amniotic membrane is a biological dressing often used in burns. While it reduces pain and promotes epithelialization, it is usually a temporary biological cover (allograft) and is inferior to the patient's own skin. * **Tulle Gras (Option C):** This is a paraffin-impregnated gauze. It is a traditional non-adherent dressing used to prevent the dressing from sticking to the wound, but it lacks the protective and regenerative properties of skin. **Clinical Pearls for NEET-PG:** * **Ideal Dressing Properties:** Non-toxic, non-adherent, permeable to water vapor but impermeable to bacteria. * **Biological Dressings:** Include skin (autograft/allograft), amnion, and collagen. They are superior to synthetic dressings for large raw areas. * **High-Yield Fact:** For a clean surgical wound closed by primary intention, the dressing is typically removed after **48 hours**, as the epithelium seals the wound by then.

Question 1

What is the clinical significance of the triangle of safety in thoracic procedures?

Accepted Answer

Insertion of an Intercostal Drain (ICD) for pleural effusion

Answer

Insertion of ports for Video-Assisted Thoracic Surgery (VATS)

Answer

Performance of Needle Thoracostomy

Answer

All of the above

Question 2

What is the most appropriate treatment for a desmoid tumor diagnosed in the abdomen?

Accepted Answer

Surgery

Answer

Chemotherapy

Answer

Radiation

Answer

Chemotherapy and Radiation

Question 3

Bassini's repair is indicated for which type of hernia?

Accepted Answer

Inguinal hernia

Answer

Femoral hernia

Answer

Spigelian hernia

Answer

Epigastric hernia

Question 4

A 50-year-old patient developed a wound infection post-laparotomy for pyoperitoneum and was treated conservatively. Granulation tissue is now seen in the wound. What is the next step in management?

Accepted Answer

Resulting with interrupted stitches

Answer

Daily dressing

Answer

Mesh repair

Answer

Incision and drainage

Question 5

Which surgical blade number is most useful for performing a tracheotomy?

Accepted Answer

11

Answer

10

Answer

15

Answer

22

Question 6

Which of the following is NOT a basic rule for wound closure?

Accepted Answer

Wound edges should be inverted.

Answer

Wound edges should be left slightly gaping to allow for swelling.

Answer

The knot should be placed to one side of the wound.

Answer

Knots must be secure, with the ends long enough to grasp when removing the suture.

Question 7

What is the concentration of Potassium in Ringer's Lactate solution?

Accepted Answer

4 mEq/L

Answer

1 mEq/L

Answer

2 mEq/L

Answer

6 mEq/L

Question 8

A child undergoing CECT chest develops immediate swelling at the contrast injection site, progressing gradually. The child also reports numbness and pain on passive finger extension, and examination reveals a feeble radial pulse. What is the most appropriate next step?

Accepted Answer

Immediate fasciotomy

Answer

High dose prednisolone and antihistamines

Answer

Angiography

Answer

Surgical exploration

Question 9

What is the ideal treatment of alveolar osteitis after dental extraction?

Accepted Answer

Debridement of socket and sedative dressing

Answer

Topical antibiotics

Answer

Systemic antibiotics

Answer

Curettage to induce fresh bleeding

Question 10

What is considered the best type of dressing for a surgical wound?

Accepted Answer

Skin

Answer

Opsite

Answer

Amnion

Answer

Tulle grass

General Surgery Principles — MCQs

General Surgery Principles — MCQs

On this page

Practice by Chapter

Want unlimited practice?