General Surgery Principles Practice Questions

Q: Which of the following are considered blood components products?

All of the above. **Explanation:** The correct answer is **D. All of the above**. In transfusion medicine, a distinction is made between **Whole Blood** and **Blood Components**. Blood components are the specific therapeutic constituents derived from whole blood through centrifugal separation. 1. **Whole Blood (A):** While it is the raw material, it is also classified as a blood product. It contains red cells, plasma, and stable clotting factors. Its use is now largely limited to cases of massive hemorrhage or autologous transfusion. 2. **Platelets (B):** These are components separated from whole blood (Random Donor Platelets) or via apheresis (Single Donor Platelets). They are essential for managing thrombocytopenia or platelet dysfunction. 3. **Fresh Frozen Plasma (FFP) (C):** This is the liquid portion of blood frozen within 8 hours of collection. It contains all coagulation factors and is the component of choice for correcting multiple factor deficiencies (e.g., liver disease, DIC, or Warfarin reversal). **Why "All of the above" is correct:** Modern surgical practice follows the principle of **"Component Therapy,"** where patients receive only the specific part of the blood they lack. This maximizes the utility of a single unit of donated blood and reduces the risk of volume overload and transfusion reactions. **High-Yield Clinical Pearls for NEET-PG:** * **Storage Temperatures:** RBCs (2–6°C), Platelets (20–24°C with constant agitation), FFP (below -18°C). * **Shelf Life:** RBCs (35–42 days depending on preservative), Platelets (5 days), FFP (1 year). * **Cryoprecipitate:** A component derived from FFP, rich in Fibrinogen, Factor VIII, Factor XIII, and von Willebrand factor. * **Universal Donor:** O-negative for RBCs; AB-positive for Plasma.

Q: Which of the following is not an approach for inguinal hernia repair?

Lotheissen. ### Explanation The correct answer is **B. Lotheissen**. **Why Lotheissen is the correct answer:** The **Lotheissen procedure** is a surgical approach specifically designed for **femoral hernia** repair, not inguinal hernia. It involves a supra-inguinal approach where the transversalis fascia is opened to access the femoral canal from above. While it utilizes the same regional anatomy, its primary objective is the closure of the femoral ring. **Analysis of Incorrect Options:** * **Bassini’s Repair:** A classic "tissue-based" (non-mesh) repair for inguinal hernias. It involves suturing the conjoint tendon (internal oblique and transversus abdominis) to the inguinal ligament. * **Lichtenstein’s Repair:** The current **gold standard** for inguinal hernia surgery. It is a "tension-free" repair using a synthetic mesh to reinforce the posterior wall of the inguinal canal. * **Desarda Repair:** A modern non-mesh technique where a strip of the external oblique aponeurosis is used to reinforce the posterior wall. It is an alternative for patients who cannot afford or tolerate mesh. **High-Yield Clinical Pearls for NEET-PG:** * **McVay’s Repair:** A procedure that can address **both** inguinal and femoral hernias by suturing the conjoint tendon to Cooper’s ligament. * **Shouldice Repair:** The most effective non-mesh (tissue) repair with the lowest recurrence rate; it involves a four-layer imbrication of the transversalis fascia. * **Nerve Injury:** The **ilioinguinal nerve** is the most commonly injured nerve during open inguinal hernia repair, leading to numbness over the scrotum/labia and medial thigh. * **Gold Standard:** Lichtenstein (Open) and TEP/TAPP (Laparoscopic) are the preferred modern approaches.

Q: What is the most common syndrome associated with cleft palate?

Pierre Robin sequence. **Explanation:** The correct answer is **Pierre Robin sequence (PRS)**. While many syndromes feature cleft palate, PRS is the most frequently associated clinical entity [2]. It is defined as a **sequence** because one initial structural defect (micrognathia) leads to a cascade of events: the small mandible forces the tongue to remain high in the oral cavity (glossoptosis), which physically prevents the palatal shelves from fusing, resulting in a **U-shaped cleft palate** [2]. **Analysis of Options:** * **Pierre Robin sequence:** Characterized by the triad of micrognathia, glossoptosis, and airway obstruction [1], [2]. The associated cleft palate is typically U-shaped rather than V-shaped. * **Stickler syndrome:** This is a connective tissue disorder and is actually the most common *syndromic cause* of Pierre Robin sequence itself [2]. However, in the context of general surgical associations, PRS remains the primary answer. * **Treacher Collins syndrome:** An autosomal dominant disorder of craniofacial development (1st and 2nd branchial arches). While cleft palate occurs in about 30% of cases, it is less common than in PRS. * **Downs syndrome:** Primarily associated with macroglossia and dental anomalies; cleft palate is not a hallmark feature. **High-Yield Clinical Pearls for NEET-PG:** * **Rule of 10s for Cleft Lip Repair:** 10 weeks of age, 10 lbs weight, 10 g/dL Hemoglobin [1]. * **Timing:** Cleft lip is usually repaired at **3–6 months**, while cleft palate is repaired at **9–18 months** (to allow for maxillary growth but before significant speech development). * **Muscle Involvement:** In cleft palate, the **Levator veli palatini** is the most important muscle that requires surgical repositioning to ensure proper velopharyngeal function.

Q: A 15-year-old male presents with pain in the inguinal area and lower abdomen. He has tenderness over a non-reducible swelling with a negative cough impulse. What is the most likely diagnosis?

Strangulated hernia. ### Explanation **Correct Answer: A. Strangulated hernia** The clinical triad of a **non-reducible swelling**, **absence of cough impulse**, and **tenderness** in the inguinal region is classic for a strangulated hernia. In strangulation, the blood supply to the herniated contents is compromised. The resulting edema and pressure within the hernial sac lead to the loss of expansile cough impulse (as the sac is no longer in free communication with the peritoneal cavity) and significant pain/tenderness. In a 15-year-old male, an indirect inguinal hernia is the most common type due to a patent processus vaginalis. **Why other options are incorrect:** * **B. Testicular torsion:** While it presents with acute pain, the swelling is typically confined to the scrotum (not the inguinal canal). The "Prehn’s sign" is negative, and the testis is often high-riding or transversely oriented. * **C. Scrotal abscess:** This usually follows epididymo-orchitis. While tender and swollen, it is associated with inflammatory signs like skin redness, warmth, and often a high-grade fever, rather than an inguinal mass with loss of cough impulse. * **D. Femoral hernia:** These are extremely rare in young males (more common in elderly females). They present below and lateral to the pubic tubercle, whereas inguinal hernias are above and medial. **NEET-PG High-Yield Pearls:** * **Irreducibility vs. Strangulation:** Irreducibility means the contents cannot be returned to the abdomen; strangulation means the blood supply is cut off (a surgical emergency). * **Cough Impulse:** It is lost in both **incarcerated** and **strangulated** hernias. * **Richter’s Hernia:** Only a part of the bowel wall is trapped; it may strangulate without causing complete intestinal obstruction. * **Maydl’s Hernia:** "W" shaped loop where the gangrenous portion lies inside the abdomen.

Q: Which of the following wounds is not typically considered untidy?

Incised wound. ### Explanation In surgical practice, wounds are broadly classified into **tidy** and **untidy** based on the mechanism of injury, the state of the tissue margins, and the presence of contamination. **1. Why "Incised Wound" is the Correct Answer:** An **incised wound** is the classic example of a **tidy wound**. It is caused by a sharp object (like a scalpel or glass) resulting in clean-cut, linear edges with minimal soft tissue damage. Because the blood supply to the wound edges remains intact and there is negligible devitalized tissue, these wounds can usually be closed primarily (Primary Intention) with excellent healing prospects. **2. Analysis of Incorrect Options (Untidy Wounds):** Untidy wounds are characterized by irregular edges, significant tissue destruction, and high contamination. * **Crushed Wound:** Caused by blunt force, leading to extensive deep tissue necrosis and impaired vascularity. * **Avulsed Wound:** Involves the tearing away of tissue layers (e.g., degloving), often compromising the blood supply to the skin flaps. * **Lacerated Wound:** Results from blunt trauma or shearing, producing jagged, irregular edges and often containing debris. **3. NEET-PG Clinical Pearls:** * **Management Difference:** Tidy wounds (Incised) can be closed immediately. Untidy wounds require thorough **debridement** (conversion of an untidy wound into a tidy one) before closure is considered. * **Rankin’s Classification:** Remember that "Untidy" wounds often have "the four Cs" of non-viable muscle: dark **C**olor, soft **C**onsistency, lack of **C**apillary bleeding, and failure to **C**ontract. * **High-Yield Fact:** A wound is considered "infected" if it contains $>10^5$ organisms per gram of tissue, a common complication in neglected untidy wounds.

Q: Which one of the following is a muscle-splitting incision?

Lanz. **Explanation:** The correct answer is **Lanz**, which is a classic example of a **muscle-splitting incision**. In surgery, muscle-splitting (or gridiron) incisions involve separating the muscle fibers along their natural direction rather than cutting across them. This preserves the integrity of the abdominal wall and results in better healing and less postoperative pain. * **Lanz Incision:** This is a transverse skin incision made at McBurney’s point, used primarily for appendectomy. It follows the Langer’s lines (skin tension lines) for a better cosmetic result. Like the McBurney (gridiron) incision, the underlying external oblique, internal oblique, and transversus abdominis muscles are split along their fibers. * **Kocher’s Incision:** This is a **muscle-cutting** subcostal incision used for open cholecystectomy or biliary surgery. The rectus abdominis muscle is divided. * **Rutherford-Morris (Rutherford-Morison) Incision:** This is an oblique muscle-cutting incision in the iliac fossa, commonly used for kidney transplants or access to the ureters. It involves cutting the oblique muscles. * **Pfannenstiel Incision:** This is a transverse incision used in pelvic surgery (e.g., C-sections). While the skin and rectus sheath are opened transversely, the rectus muscles are retracted laterally rather than split along their fibers; it is categorized as a **muscle-retracting** incision. **High-Yield Clinical Pearls for NEET-PG:** * **McBurney’s Incision:** The original muscle-splitting incision for appendectomy; it is oblique, whereas Lanz is transverse. * **Battle’s Incision:** A paramedian incision where the rectus muscle is retracted medially (muscle-retracting). * **Sanders’ Incision:** A variation of the Kocher’s incision used for better exposure in obese patients. * **Key Concept:** Muscle-splitting incisions (Lanz/McBurney) have a lower incidence of incisional hernia compared to muscle-cutting incisions.

Question 1

Which of the following are considered blood components products?

Accepted Answer

All of the above

Answer

Whole blood

Answer

Platelets

Answer

Fresh frozen plasma

Question 2

Which of the following is not an approach for inguinal hernia repair?

Accepted Answer

Lotheissen

Answer

Bassini's

Answer

Lichtenstein's

Answer

Desarda

Question 3

What is the most common syndrome associated with cleft palate?

Accepted Answer

Pierre Robin sequence

Answer

Stickler syndrome

Answer

Treacher Collins syndrome

Answer

Downs syndrome

Question 4

What is true about the hyperplastic type of tuberculosis?

Accepted Answer

Pulled up caecum

Answer

Swallowed infected sputum is the cause

Answer

Highly virulent compared to ulcerative type

Answer

Serosa studded with tubercles

Question 5

A 36-year-old patient is undergoing mediastinoscopy with biopsy. During the procedure, several lymph node biopsies are taken. Pathologic examination reveals normal lymphoid tissue replaced by a mixed population of cells including histiocytes, lymphocytes, monocytes, plasma cells, and eosinophils. Interspersed among these cells are infrequent large binucleate cells with prominent eosinophilic nucleoli. Immunophenotyping shows these cells are positive for CD15 and CD30. What is the most likely diagnosis for these CD15 and CD30 positive cells?

Accepted Answer

Reed-Sternberg cells

Answer

Aschoff cells

Answer

Langhans giant cells

Answer

Megakaryocytes

Question 6

A 15-year-old male presents with pain in the inguinal area and lower abdomen. He has tenderness over a non-reducible swelling with a negative cough impulse. What is the most likely diagnosis?

Accepted Answer

Strangulated hernia

Answer

Testicular torsion

Answer

Scrotal abscess

Answer

Femoral hernia

Question 7

Which of the following wounds is not typically considered untidy?

Accepted Answer

Incised wound

Answer

Crushed wound

Answer

Avulsed wound

Answer

Lacerated wound

Question 8

Which one of the following is a muscle-splitting incision?

Accepted Answer

Lanz

Answer

Kocher's

Answer

Rutherford-Morris

Answer

Pfannensteil

Question 9

According to the Hippocrates-Nelson method, what pressure is applied for the reduction of a dislocated mandible?

Accepted Answer

Both downward pressure on molars and backward pressure on the mandible.

Answer

Downward pressure on molars.

Answer

Backward pressure on the mandible.

Answer

Downward pressure on the mandible.

Question 10

An 85-year-old gentleman complains of leg pain while lying down, which lessens when he hangs the foot out of bed. What is the most likely cause?

Accepted Answer

Peripheral vascular disease

Answer

Psychiatric illness

Answer

L4-L5 disc prolapse

Answer

Osteoarthritis of the knee

General Surgery Principles — MCQs

General Surgery Principles — MCQs

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