Q. 1
Medical Sciences
Difficulty: Easy
(1 Mark)
The classical McBurney's point tenderness in acute appendicitis is anatomically situated at:
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Step-by-Step Explanation & Concept Rationale
McBurney's point corresponds to the base of the appendix, located one-third of the distance along the line connecting the right ASIS to the umbilicus.
Q. 2
Medical Sciences
Difficulty: Easy
(1 Mark)
What is the most frequent cause of massive primary postpartum hemorrhage (PPH) occurring within 24 hours of delivery?
💡
Step-by-Step Explanation & Concept Rationale
Uterine atony (failure of the myometrium to contract and compress spiral arterioles) accounts for over 70-80% of all cases of primary postpartum hemorrhage.
Q. 3
Medical Sciences
Difficulty: Easy
(1 Mark)
The drug of choice for the prevention and treatment of eclamptic convulsions in a severe pre-eclamptic pregnant woman is:
💡
Step-by-Step Explanation & Concept Rationale
Intravenous/intramuscular Magnesium Sulfate (Pritchard or Zuspan regimen) is the universally recommended anticonvulsant for eclampsia prevention and management.
Q. 4
Medical Sciences
Difficulty: Medium
(1 Mark)
In evaluating burn injuries, the 'Rule of Nines' in an adult assigns what percentage of total body surface area (TBSA) to the entire anterior trunk (chest + abdomen)?
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Step-by-Step Explanation & Concept Rationale
Under Wallace's Rule of Nines: Head & Neck = 9%, Each Arm = 9%, Anterior Trunk = 18%, Posterior Trunk = 18%, Each Leg = 18%, Perineum = 1%.
Q. 5
Medical Sciences
Difficulty: Easy
(1 Mark)
Which clinical sign involves pain and sudden arrest of inspiration upon palpation of the right upper quadrant during deep inspiration in acute cholecystitis?
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Step-by-Step Explanation & Concept Rationale
Murphy's sign is elicited by placing the hand beneath the right costal margin; sharp inspiratory arrest when the inflamed gallbladder descends onto the examining hand indicates acute cholecystitis.
Q. 6
Medical Sciences
Difficulty: Easy
(1 Mark)
What is the most common histological subtype of breast cancer diagnosed in adult females worldwide?
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Step-by-Step Explanation & Concept Rationale
Invasive ductal carcinoma (also designated as invasive breast carcinoma of no special type - NST) accounts for approximately 70-80% of all invasive breast malignancies.
Q. 7
Medical Sciences
Difficulty: Medium
(1 Mark)
Tension pneumothorax is an immediate surgical emergency that requires urgent decompression prior to obtaining a chest radiograph by inserting a large-bore needle into the:
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Step-by-Step Explanation & Concept Rationale
Immediate needle thoracocentesis (traditionally 2nd intercostal space midclavicular line, or 4th/5th intercostal space anterior axillary line) converts a tension pneumothorax into an open pneumothorax and relieves mediastinal shift.
Q. 8
Medical Sciences
Difficulty: Easy
(1 Mark)
Which of the following is the most common site of ectopic pregnancy implantation?
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Step-by-Step Explanation & Concept Rationale
Over 95% of ectopic pregnancies occur in the fallopian tube, with the ampullary segment being the single most common location (accounting for ~70% of tubal implantations).
Q. 9
Medical Sciences
Difficulty: Medium
(1 Mark)
A direct inguinal hernia is anatomically defined by protruding through which anatomical triangle bounded by the inferior epigastric vessels, rectus abdominis, and inguinal ligament?
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Step-by-Step Explanation & Concept Rationale
Direct inguinal hernias push through a weakness in the posterior wall of the inguinal canal within Hesselbach's triangle, medial to the inferior epigastric vessels.
Q. 10
Medical Sciences
Difficulty: Easy
(1 Mark)
Painless, bright red vaginal bleeding occurring in the third trimester of pregnancy is the cardinal symptom of:
💡
Step-by-Step Explanation & Concept Rationale
Placenta previa classically manifests as sudden, painless, recurrent bright red vaginal bleeding in the third trimester; digital vaginal examination is strictly contraindicated until ultrasound confirms placental location.
Q. 11
Medical Sciences
Difficulty: Easy
(1 Mark)
What is the most definitive and safest management for a pregnant woman diagnosed with severe pre-eclampsia at 38 weeks of gestation?
💡
Step-by-Step Explanation & Concept Rationale
Delivery is the only definitive cure for pre-eclampsia. At term (≥37 weeks), prompt delivery is indicated to prevent maternal and fetal complications.
Q. 12
Medical Sciences
Difficulty: Medium
(1 Mark)
Which diagnostic maneuver involves extending the right thigh while the patient lies on their left side, eliciting pain in retrocecal appendicitis?
💡
Step-by-Step Explanation & Concept Rationale
The psoas sign stretches the iliopsoas muscle against an inflamed retrocecal appendix, triggering right lower quadrant abdominal pain.
Q. 13
Medical Sciences
Difficulty: Hard
(1 Mark)
The triad of Beck indicative of acute cardiac tamponade consists of:
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Step-by-Step Explanation & Concept Rationale
Beck's triad consists of low arterial blood pressure, distended jugular veins, and distant/muffled heart sounds resulting from pericardial fluid compression.
Q. 14
Medical Sciences
Difficulty: Medium
(1 Mark)
The most common site of volvulus in the large bowel in elderly individuals is the:
💡
Step-by-Step Explanation & Concept Rationale
Sigmoid volvulus accounts for over 70% of large-bowel volvulus cases, typically presenting with progressive abdominal distension and 'coffee bean' sign on radiograph.
Q. 15
Medical Sciences
Difficulty: Easy
(1 Mark)
In obstetrics, what defines a low birth weight (LBW) infant regardless of gestational age?
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Step-by-Step Explanation & Concept Rationale
WHO defines Low Birth Weight as a birth weight of less than 2,500 g (up to and including 2,499 g). Very low birth weight is < 1,500 g.
Q. 16
Medical Sciences
Difficulty: Medium
(1 Mark)
A patient involved in a motor vehicle accident presents in shock with blunt abdominal trauma. Focused Assessment with Sonography for Trauma (FAST) is used primarily to detect:
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Step-by-Step Explanation & Concept Rationale
FAST scan rapidly evaluates four key acoustic windows (hepatorenal, splenorenal, suprapubic, and pericardial) to identify pathological fluid accumulation.
Q. 17
Medical Sciences
Difficulty: Easy
(1 Mark)
Which of the following is the most sensitive imaging modality for diagnosing acute cholelithiasis (gallstones)?
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Step-by-Step Explanation & Concept Rationale
Transabdominal ultrasound is over 95% sensitive and specific for detecting gallstones, depicting acoustic shadowing and mobile echogenic foci in the gallbladder lumen.
Q. 18
Medical Sciences
Difficulty: Easy
(1 Mark)
What is the recommended initial intravenous fluid for resuscitation in a patient with severe acute hemorrhagic or hypovolemic shock?
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Step-by-Step Explanation & Concept Rationale
Warmed balanced isotonic crystalloids (Ringer's Lactate or Normal Saline) are the standard initial resuscitative fluids while cross-matched blood is arranged.
Q. 19
Medical Sciences
Difficulty: Medium
(1 Mark)
The Bishop score is an obstetric scoring system utilized prior to induction of labor to evaluate:
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Step-by-Step Explanation & Concept Rationale
Bishop score assesses five pelvic exam criteria (cervical dilation, effacement, station, consistency, and position); a score ≥ 8 predicts successful vaginal induction.
Q. 20
Medical Sciences
Difficulty: Easy
(1 Mark)
Which benign breast condition is the most common cause of a mobile, firm, rubbery, well-circumscribed, non-tender breast lump in young women (aged 15-30)?
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Step-by-Step Explanation & Concept Rationale
Fibroadenomas are the most frequent benign breast tumors in adolescents and young women, classically presenting as a mobile 'breast mouse'.
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