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USMLE STEP 1 Pharmacology Exam Questions And Answers Verified 100% Correct What are the major functions of the D2 receptor? Modulates transmitter release, especially in the brain What are the major functions of the H1 receptor? Increase nasal and bronchial mucus production, increase vascular permeability, contraction of bronchioles, pruritis, pain What are the major functions of the H2 receptor? Increase gastric acid secretion What are the major functions of the V1 receptor...

Social Psychology and Human Nature Comprehensive Edition 3rd Edition Test bank

TEST BANK FOR USMLE STEP 1 Pharmacology (Questions and Answers)

USMLE STEP 1 Pharmacology Exam Questions and Answers.USMLE STEP 1 Pharmacology Exam Questions and Answers.

USMLE STEP 1 Pharmacology Questions and Answers | Latest Version | 2025/2026 | Correct & Verified Which drug is used to treat bradycardia by increasing heart rate through muscarinic blockade? Atropine Which class of diuretics is contraindicated in sulfa allergy? Thiazides Which drug irreversibly inhibits platelet aggregation by acetylating COX enzymes? Aspirin Which insulin type has the fastest onset of action? Lispro Which antibiotic inhibits bacterial protein synth...

USMLE STEP 1 Pharmacology Full Study-Guide / Actual Exam Questions Bank with Definitive Explanations of Answers / Newest 2025/2026. Terms in this set (870) Quiz____? What are the major functions of the α1 receptor? - Answer Increase vascular smooth muscle contraction, increase pupillary dilator muscle contraction (mydriasis), increase intestinal and bladder sphincter muscle contraction Quiz____? What are the major functions of the α2 receptor? - Answer Decrease...

USMLE Step 1 Practice Exam: Pharmacology Questions Correct Answers in Bold and Detailed Rationales Prepared for: USMLE Step 1 Review | Focus: Pharmacology High-Yield Topics

What are the major functions of the α2 receptor? - Precise Answer Decrease sympathetic outflow, decrease insulin release, decrease lipolysis, increase platelet aggregation, decrease aqueous humor production What are the major functions of the β1 receptor? - Precise Answer Increase heart rate, increase contractility, increase renin release, increase lipolysis What are the major functions of the β2 receptor? - Precise Answer Vasodilation, bronchodilation, increase lipolysis, increase insulin ...

USMLE STEP 1 PHARMACOLOGY EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS

USMLE STEP 1 Pharmacology LAEST EXAM QUESTIONS AND REVISED SOLUTIONS Tetrodotoxin - ANSWER -Poisoning can result from ingestion of poorly prepared puffer fish (exotic sushi) -Highly potent toxin that binds fast voltage-gated Na+ channels in cardiac and nerve tissue, preventing depolarization - blocks action potential without changing resting potential (same mechanism as Lidocaine) -Causes nausea, diarrhea, paresthesias, weakness, dizziness, loss of reflexes. -Treatment is...