Dr Priyam bhatt

Q50. Which vitamin deficiency causes scurvy?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin E
Answer: B. Vitamin C
Explanation: Vitamin C deficiency impairs collagen synthesis, leading to bleeding gums, poor wound healing, and scurvy.
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3 weeks ago | [YT] | 7

Dr Priyam bhatt

Q49. The most common malignant tumor in women worldwide is:
A. Cervical carcinoma
B. Ovarian carcinoma
C. Endometrial carcinoma
D. Breast carcinoma
Answer: D. Breast carcinoma
Explanation: Breast cancer is the most frequently diagnosed cancer among women worldwide.
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3 weeks ago | [YT] | 5

Dr Priyam bhatt

Q48. Which cranial nerve carries the afferent limb of the corneal reflex?
A. Facial nerve (VII)
B. Oculomotor nerve (III)
C. Trigeminal nerve (V1)
D. Abducens nerve (VI)
Answer: C. Trigeminal nerve (V1)
Explanation: The ophthalmic division (V1) of the trigeminal nerve forms the afferent limb; the facial nerve forms the efferent limb.
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Dr Priyam bhatt

Q47. The most common cause of neonatal jaundice is:
A. Biliary atresia
B. Physiological jaundice
C. Hemolytic disease of newborn
D. Sepsis
Answer: B. Physiological jaundice
Explanation: Physiological jaundice due to immature hepatic conjugation mechanisms is the most common cause.
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Dr Priyam bhatt

Q46. Which renal structure is primarily affected in minimal change disease?
A. Mesangium
B. Glomerular basement membrane
C. Podocyte foot processes
D. Renal tubules
Answer: C. Podocyte foot processes
Explanation: Electron microscopy shows diffuse effacement (fusion) of podocyte foot processes.
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Dr Priyam bhatt

Q45. The antidote for paracetamol poisoning is:
A. Atropine
B. Naloxone
C. N-acetylcysteine
D. Flumazenil
Answer: C. N-acetylcysteine
Explanation: N-acetylcysteine replenishes glutathione stores and prevents hepatic injury.
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Dr Priyam bhatt

Q44. Which organism is the most common cause of infective endocarditis in intravenous drug users?
A. Viridans streptococci
B. Enterococci
C. Staphylococcus aureus
D. Streptococcus bovis
Answer: C. Staphylococcus aureus
Explanation: Staphylococcus aureus is the most common cause of infective endocarditis in IV drug users and often affects the tricuspid valve.

3 weeks ago | [YT] | 3

Dr Priyam bhatt

Q43. The most common cause of acute pancreatitis is:
A. Alcohol
B. Gallstones
C. Hypercalcemia
D. Trauma
Answer: B. Gallstones
Explanation: Gallstones are the most common overall cause of acute pancreatitis; alcohol is a major cause in adults.
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3 weeks ago | [YT] | 4

Dr Priyam bhatt

Q42. Which nerve is injured in Erb's palsy?
A. C8–T1
B. C5–C6
C. C7–C8
D. T1–T2
Answer: B. C5–C6
Explanation: Erb's palsy results from injury to the upper trunk (C5–C6) of the brachial plexus, producing the "waiter's tip" posture.
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3 weeks ago | [YT] | 4

Dr Priyam bhatt

Q41. The most common cause of Cushing syndrome is:
A. Adrenal adenoma
B. Pituitary ACTH-secreting adenoma (Cushing disease)
C. Adrenal carcinoma
D. Ectopic ACTH production
Answer: B. Pituitary ACTH-secreting adenoma (Cushing disease)
Explanation: Among endogenous causes, a pituitary ACTH-secreting adenoma is the most common cause of Cushing syndrome.
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