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NBME CBSE USMLE STEP 1MEDICAL EXAMINATION TEST
BANK YEAR 2025-2026
nbme cbse usmle step 1medical examination
STUDY GUIDE AND test bank
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TABLE OF CONTENTS
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1. examination STUDY GUIDE AND test bank resources
2. exam study guide
3. Study Tips
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exam STUDY GUIDE AND test bank 2025-2026
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Q1: Which of the following is the primary function of the sodium-potassium pump? resources
a) Maintain resting membrane potential ■
b) Synthesize ATP
c) Facilitate endocytosis
d) Produce neurotransmitters
Q2: A patient presents with jaundice and elevated direct bilirubin. Which condition is most likely?
a) Obstructive jaundice ■
b) Hemolytic anemia
c) Gilbert syndrome
d) Physiologic neonatal jaundice
Q3: Which cranial nerve is responsible for facial expression?
a) Facial nerve (CN VII) ■
b) Trigeminal nerve (CN V)
c) Accessory nerve (CN XI)
d) Hypoglossal nerve (CN XII)
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Q4: Which artery supplies the lateral aspect of the forearm?
a) Radial artery ■
b) Ulnar artery
c) Brachial artery
d) Axillary artery
Q5: Which part of the nephron is impermeable to water but actively reabsorbs Na+ and Cl-?
a) Thick ascending loop of Henle ■
b) Proximal tubule
c) Distal convoluted tubule
d) Collecting duct
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Q6: Which vitamin deficiency is associated with night blindness?
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a) Vitamin A ■
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b) Vitamin D resources
c) Vitamin E
d) Vitamin K
Q7: Which neurotransmitter is primarily deficient in Parkinson's disease?
a) Dopamine ■
b) Acetylcholine
c) Serotonin
d) GABA
Q8: Which type of hypersensitivity reaction is mediated by IgE?
a) Type I ■
b) Type II
c) Type III
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d) Type IV
Q9: Which bacteria is most commonly associated with peptic ulcer disease?
a) Helicobacter pylori ■
b) Escherichia coli
c) Staphylococcus aureus
d) Salmonella typhi
Q10: Which of the following is a common cause of macrocytic anemia?
a) Vitamin B12 deficiency ■
b) Iron deficiency
c) Chronic disease
d) Lead poisoning
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