USMLE FULL SOLUTION PACK STEP 1 AND STEP 2 Bundled exams with complete solution.

1. Determine the number of ATP molecules, which are formed in Krebs cycle at the conversion of isocitric acid to fumaric acid (I) and to succinyl CoA (II) respectively: A) I -7,0; II - 5,5 B) I - 5; II - 3,5 C) I - 6,5; II - 4,5 D) I - 7,5; II - 5 E) I - 7; II - 3 2. In which stages of citric...

FIRST AID for the USMLE STEP–1 Cell cycle phases Checkpoints control transitions between phases of cell cycle. This process is regulated by cyclins, cyclin–dependent kinases (CDKs), and tumor suppressors. M phase (shortest phase of cell cycle) includes mitosis (prophase, prometaphase, metapha...

Biochemistry USMLE Step 1 Achondroplasia involves what defect? – Cell-signaling defect of fibroblast growth factor (FGF) receptor 3 Marfan's syndrome involves a mutation in what? – Fibrillin gene Xanthine, hypoxanthine and uric acid are all what type of base? – Purine What is the rate ...

Biochemistry USMLE practice questions thrombocytopenia - deficiency of platelets in the blood. This causes bleeding into the tissues, bruising, and slow blood clotting after injury. A 16 year old boy presented to a doctor by his mother for the injury which he had recently during cycle riding. On...

USMLE STEP 1 Pharmacology Organophosphates Correct Answer: anticholinesterase poisoning Atropine, pralodoxime Correct Answer: anticholinesterase poisoning treatment bethachol Correct Answer: muscarinic direct agonist; post-op ileus, urinary retention carbechol Correct Answer: muscari...

USMLE STEP 1 Pharmacology What are the major functions of the α1 receptor? - Increase vascular smooth muscle contraction, increase pupillary dilator muscle contraction (mydriasis), increase intestinal and bladder sphincter muscle contraction What are the major functions of the α2 receptor?...

What gland is found in the muscular triangle of the neck? - Thyroid gland Is an afferent or efferent pupillary defect described as B/L pupillary constriction when light is shined in the unaffected eye and B/L paradoxical dilation when light is shined in the affected eye? - Afferent pupillary defe...

Step 1 Biostats and ethics Controlling confounders - ANSWER-There are 3 methods to control confounders in the design stage of a study ; matching, restriction and randomization. Restriction is a method that limits participation in the study to individuals who are similar in relation to the confou...

USMLE Step 2 CK High-Yield Complete Test With Questions And Answers 2022 Classic EKG finding in atrial flutter Correct Answer: "Sawtooth" p waves Definition of unstable angina Correct Answer: Angina that is new, is worsening, or occurs at rest Antihypertensive for a diabetic patient wit...

A 73-year-old man comes to the office with fatigue that has become progressively worse over the last several months. He is also short of breath when he walks up one flight of stairs. He drinks 4 vodka martinis a day. He complains of numbness and tingling in his feet. On physical examination he ha...