TN MRB MOCK TEST - 6

TN MRB MOCK TEST - 6 

100 QnA


Get FULL EBOOK AND PREVIOUS TEST SERIES AND MOCKS AT https://telegram.me/Abins_007



1. Most common cause of failure of spinal anesthesia is:

A. Wrong drug

B. Low dose

C. Wrong space

D. Hypotension

2. Drug of choice for cyanide poisoning is:

A. Hydroxocobalamin

B. Naloxone

C. Atropine

D. Pralidoxime

3. Which nerve is spared in adductor canal block?

A. Saphenous

B. Vastus medialis

C. Femoral motor nerve

D. Medial femoral cutaneous

4. Earliest ECG change in hyperkalemia:

A. Prolonged QT

B. Peaked T wave

C. Widened QRS

D. ST depression

5. Site of action of furosemide:

A. PCT

B. DCT

C. Thick ascending limb

D. Collecting duct

6. Most radiosensitive cell:

A. Muscle

B. Neuron

C. Lymphocyte

D. Hepatocyte

7. Antidote for heparin:

A. Vitamin K

B. Protamine

C. PCC

D. FFP

8. Most common nerve injured in posterior hip dislocation:

A. Femoral

B. Obturator

C. Sciatic

D. Lateral femoral cutaneous

9. Blue bloater refers to:

A. Emphysema

B. Pulmonary embolism

C. Chronic bronchitis

D. Bronchial asthma

10. Best indicator of renal function:

A. Serum urea

B. Serum creatinine

C. GFR

D. Urine output

11. Drug causing SIADH:

A. Furosemide

B. Lithium

C. Carbamazepine

D. Mannitol

12. Cranial nerve damaged in cavernous sinus thrombosis first:

A. CN II

B. CN III

C. CN VI

D. CN V1

13. Mechanism of action of benzodiazepines:

A. Increase GABA release

B. Directly open Cl channel

C. Increase frequency of Cl opening

D. Block NMDA receptor

14. Most common cause of secondary postpartum hemorrhage:

A. Uterine atony

B. Retained products

C. Uterine rupture

D. Coagulopathy

15. Nerve supplying cornea sensation:

A. Maxillary

B. Mandibular

C. Ophthalmic

D. Facial

16. Earliest feature of raised ICP:

A. Papilledema

B. Headache

C. Vomiting

D. Altered sensorium

17. Drug causing red man syndrome:

A. Ceftriaxone

B. Vancomycin

C. Linezolid

D. Teicoplanin

18. Commonest cause of nephrotic syndrome in adults:

A. Minimal change

B. FSGS

C. Membranous nephropathy

D. MPGN

19. Hormone secreted by zona glomerulosa:

A. Cortisol

B. Aldosterone

C. Androgens

D. Estrogen

20. Most common cause of acute pancreatitis:

A. Alcohol

B. Trauma

C. Drugs

D. Hypercalcemia

21. Best test for early HIV infection:

A. ELISA

B. Western blot

C. p24 antigen

D. CD4 count

22. Dead space ventilation increases in:

A. Asthma

B. ARDS

C. Pulmonary embolism

D. Pneumonia

23. Target INR for mechanical mitral valve:

A. 1.5–2

B. 2–3

C. 2.5–3.5

D. 3.5–4.5

24. Drug used for malignant hyperthermia:

A. Bromocriptine

B. Dantrolene

C. Diazepam

D. Propranolol

25. Earliest sign of hypocalcemia:

A. Chvostek sign

B. Trousseau sign

C. Tetany

D. Seizures

26. Most common primary brain tumor in adults:

A. Astrocytoma

B. Glioblastoma multiforme

C. Meningioma

D. Oligodendroglioma

27. Nerve injured in Erb palsy:

A. C5–C6

B. C6–C7

C. C8–T1

D. T1–T2

28. Drug causing optic neuritis:

A. Ethambutol

B. Isoniazid

C. Rifampicin

D. Pyrazinamide

29. Mechanism of action of propofol:

A. NMDA blockade

B. GABA agonist

C. Alpha-2 agonist

D. Opioid receptor agonist

30. Most common cause of death in burns:

A. Hypovolemia

B. Sepsis

C. ARDS

D. Renal failure

31. Which vitamin deficiency causes night blindness:

A. Vitamin D

B. Vitamin A

C. Vitamin E

D. Vitamin K

32. Gold standard for diagnosis of PE:

A. Chest X-ray

B. D-dimer

C. CT pulmonary angiography

D. ECG

33. Drug of choice for status epilepticus:

A. Phenytoin

B. Diazepam

C. Levetiracetam

D. Phenobarbitone

34. Organ most sensitive to hypoxia:

A. Liver

B. Kidney

C. Brain

D. Heart

35. Most common site of ectopic pregnancy:

A. Ovary

B. Cervix

C. Ampulla

D. Isthmus

36. Anion gap metabolic acidosis seen in:

A. Diarrhea

B. Vomiting

C. DKA

D. RTA

37. Drug causing gingival hyperplasia:

A. Valproate

B. Phenytoin

C. Carbamazepine

D. Phenobarbitone

38. Structure affected in Parkinson disease:

A. Caudate nucleus

B. Putamen

C. Substantia nigra

D. Globus pallidus

39. Nerve supplying diaphragm:

A. Vagus

B. Intercostal

C. Phrenic

D. Accessory

40. Most common cause of acute liver failure in India:

A. Alcohol

B. Hepatitis A

C. Hepatitis E

D. Paracetamol

41. Best marker of chronic glycemic control:

A. Fasting glucose

B. Random glucose

C. HbA1c

D. OGTT

42. Commonest cause of portal hypertension:

A. Portal vein thrombosis

B. Cirrhosis

C. Budd-Chiari syndrome

D. Right heart failure

43. Drug causing torsades de pointes:

A. Amiodarone

B. Lidocaine

C. Sotalol

D. Digoxin

44. Most common congenital heart disease:

A. ASD

B. VSD

C. PDA

D. TOF

45. Reflex causing bradycardia during eye surgery:

A. Carotid sinus

B. Oculocardiac

C. Valsalva

D. Bezold-Jarisch

46. Best test for myasthenia gravis:

A. CT chest

B. Edrophonium test

C. Anti-ACh receptor antibody

D. EMG

47. Antidote for methanol poisoning:

A. Naloxone

B. Ethanol

C. N-acetylcysteine

D. Flumazenil

48. Structure pierced in lumbar puncture:

A. Ligamentum flavum

B. Posterior longitudinal ligament

C. Anterior longitudinal ligament

D. Interspinous ligament

49. Most common cause of hemoptysis:

A. TB

B. Lung cancer

C. Bronchiectasis

D. Pneumonia

50. Drug causing grey baby syndrome:

A. Chloramphenicol

B. Tetracycline

C. Sulfonamide

D. Gentamicin

51. First hormone lost in hypopituitarism:

A. TSH

B. ACTH

C. GH

D. Prolactin

52. Most common cause of iron deficiency anemia:

A. Malabsorption

B. Dietary deficiency

C. Blood loss

D. Hemolysis

53. Drug of choice for acute angle-closure glaucoma:

A. Timolol

B. Acetazolamide

C. Atropine

D. Pilocarpine

54. Most common organism causing UTI:

A. Klebsiella

B. Proteus

C. E. coli

D. Enterococcus

55. Nerve injured in wrist drop:

A. Median

B. Ulnar

C. Radial

D. Musculocutaneous

56. Cause of strawberry tongue:

A. Measles

B. Scarlet fever

C. Diphtheria

D. Rubella

57. Mechanism of action of aspirin:

A. Reversible COX inhibition

B. Irreversible COX inhibition

C. LOX inhibition

D. TXA2 agonist

58. Most common cause of neonatal jaundice:

A. Breast milk jaundice

B. Physiological jaundice

C. Hemolysis

D. Sepsis

59. Best imaging for acoustic neuroma:

A. CT scan

B. X-ray skull

C. MRI with contrast

D. PET scan

60. Structure injured in Colles fracture:

A. Ulna

B. Scaphoid

C. Distal radius

D. Lunate

61. Most common arrhythmia in MI:

A. Atrial fibrillation

B. Ventricular fibrillation

C. Ventricular tachycardia

D. Sinus tachycardia

62. Drug used for rapid sequence intubation:

A. Atracurium

B. Rocuronium

C. Succinylcholine

D. Vecuronium

63. Hormone increased in SIADH:

A. Aldosterone

B. ADH

C. Cortisol

D. Renin

64. Most common site of peptic ulcer:

A. Stomach body

B. Duodenal bulb

C. Antrum

D. Esophagus

65. Best indicator of tissue perfusion:

A. BP

B. Pulse

C. Lactate

D. CVP

66. Drug causing nephrogenic diabetes insipidus:

A. Carbamazepine

B. Lithium

C. Desmopressin

D. Furosemide

67. Most common type of renal stone:

A. Uric acid

B. Cystine

C. Calcium oxalate

D. Struvite

68. Structure forming posterior boundary of adductor canal:

A. Sartorius

B. Vastus medialis

C. Adductor longus

D. Adductor magnus

69. Commonest cause of sudden cardiac death:

A. Cardiomyopathy

B. MI

C. Arrhythmia

D. Valvular disease

70. Most common nerve injured in thyroid surgery:

A. Vagus

B. Hypoglossal

C. Recurrent laryngeal

D. Glossopharyngeal

71. Best screening test for cervical cancer:

A. HPV DNA

B. Pap smear

C. VIA

D. Colposcopy

72. Drug causing Stevens-Johnson syndrome:

A. Paracetamol

B. Sulfonamides

C. Penicillin

D. Erythromycin

73. Commonest cause of obstructive jaundice:

A. Carcinoma pancreas

B. Gallstones

C. Cholangiocarcinoma

D. Stricture

74. Most common primary immunodeficiency:

A. SCID

B. IgA deficiency

C. CGD

D. DiGeorge

75. Nerve supplying deltoid muscle:

A. Radial

B. Axillary

C. Musculocutaneous

D. Median

76. Drug causing methemoglobinemia:

A. Lidocaine

B. Prilocaine

C. Bupivacaine

D. Ropivacaine

77. Most common cause of DIC:

A. Trauma

B. Sepsis

C. Malignancy

D. Obstetric causes

78. Reflex arc of knee jerk:

A. L2–L3

B. L3–L4

C. L4–L5

D. L5–S1

79. Structure damaged in Bell palsy:

A. Trigeminal nerve

B. Facial nerve

C. Hypoglossal nerve

D. Vagus nerve

80. Drug of choice for anaphylaxis:

A. Hydrocortisone

B. Antihistamine

C. Adrenaline

D. Dopamine

81. Most common site of spinal TB:

A. Cervical

B. Thoracic

C. Lumbar

D. Sacral

82. Mechanism of action of beta blockers:

A. Alpha blockade

B. Calcium channel blockade

C. Beta receptor blockade

D. ACE inhibition

83. Earliest manifestation of lead poisoning:

A. Wrist drop

B. Anemia

C. Abdominal pain

D. Encephalopathy

84. Drug causing pulmonary fibrosis:

A. Methotrexate

B. Amiodarone

C. Cyclophosphamide

D. Cisplatin

85. Most common cause of pericardial effusion in India:

A. Malignancy

B. TB

C. Viral

D. Uremia

86. Best indicator of brain death:

A. EEG

B. Apnea test

C. CT scan

D. GCS

87. Most common cause of acute appendicitis:

A. Fecolith

B. Parasite

C. Tumor

D. Lymphoid hyperplasia

88. Drug of choice for eclampsia:

A. Diazepam

B. Phenytoin

C. Magnesium sulfate

D. Labetalol

89. Most common cause of facial nerve palsy:

A. Trauma

B. Infection

C. Idiopathic

D. Tumor

90. Best test for diagnosis of pheochromocytoma:

A. CT abdomen

B. MRI

C. Plasma free metanephrines

D. Urinary VMA

91. Nerve injured in claw hand:

A. Median

B. Radial

C. Ulnar

D. Axillary

92. Most common cause of hypopituitarism:

A. Trauma

B. Tumor

C. Infection

D. Radiation

93. Drug causing lupus-like syndrome:

A. Hydralazine

B. ACE inhibitors

C. Beta blockers

D. Diuretics

94. Most common site of meningioma:

A. Falx

B. Convexity

C. Sphenoid wing

D. Olfactory groove

95. Best marker of myocardial injury:

A. CK-MB

B. Troponin I

C. LDH

D. AST

96. Most common cause of secondary hypertension:

A. Renal artery stenosis

B. Pheochromocytoma

C. Primary aldosteronism

D. Cushing syndrome

97. Drug of choice for acute gout:

A. Allopurinol

B. Probenecid

C. Colchicine

D. Febuxostat

98. Structure responsible for accommodation:

A. Retina

B. Lens

C. Cornea

D. Iris

99. Most common cause of neonatal sepsis:

A. E. coli

B. Group B streptococcus

C. Staphylococcus

D. Klebsiella

100. Best indicator of adequacy of ventilation during anesthesia:

A. SpO₂

B. BP

C. ETCO₂

D. RR

ANSWER KEY (1–100)

C

A

C

B

C

C

B

C

C

C

C

C

C

B

C

B

B

C

B

A

C

C

C

B

A

C

A

A

B

B

B

C

B

C

C

C

B

C

C

D

C

B

C

B

B

C

B

A

C

A

C

C

B

C

C

B

B

B

C

C

B

C

B

B

C

B

C

D

C

C

B

B

B

B

B

B

B

B

B

C

B

C

B

B

B

B

D

C

C

C

C

B

A

B

B

A

C

B

B

C

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