usmle step 1

Repeated USMLE Questions Step 1- 323

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Q- Which one the following parts of the large intestine is extraperitoneal? A- Cecum B- Descending colon C- Sigmoid colon D- Transverse colon Q- Which of the following is the mode of inheritance of cystic fibrosis? A- Autosomal dominant B- Autosomal recessive C- X-linked dominant D- X-linked recessive Q- Primitive spermatogenic germ cells are located … Read more

Pharmacology MCQs- 242

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Q- Which one of the following drugs is used to treat copper toxicity? A- Aminocaproic acid B- Atropine C- Penicillamine D- Protamine Q- Which one of the following cephalosporins belongs to the third generation? A- Cefaclor B- Cefixime C- Cefoxitin D- Ceftin Q- Which one of the following medications causes black stools? A- Ampicillin B- … Read more

Repeated USMLE Questions Step 1- 322

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Q- Which one of the following symptoms is most likely found in Parkinson’s disease? A- Chorea B- Cogwheel rigidity C- Intention tremors D- Visual hallucinations Q- Which of the following receptors is the most likely affected in patients with diabetes mellitus? A- End-bulbs of Krause B- Meissner’s corpuscle C- Pacinian corpuscle D- Ruffini’s end organ … Read more

Pharmacology MCQs- 241

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Q- Which of the following drugs acts directly on dopamine receptors to improve the effects of Parkinson’s disease? A- Amantadine B- Bromocriptine C- Carbidopa D- Selegiline Q- Which of the following local anesthetics causes vasoconstriction and may lead to an increase of blood pressure? A- Benzocaine B- Cocaine C- Lidocaine D- Tetracaine Q- Which of … Read more

Pharmacology MCQs- 240

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Q- Which one of the following drugs is often added to nasal decongestants? A- Albuterol B- Epinephrine C- Norepinephrine D- Phenylephrine Q- Which of the following is the mechanism of action of aminoglycosides? A- Blocking pathogens’ recognition of the host B- Disruption of cell wall hemostasis C- Disruption of ribosomal protein synthesis D- Inhibition of … Read more