Usage for hash tag: january2020usmle2k

#january2020usmle2k Which of the following medications is the drug of choice for motion sickness? A- Benztropine B- Dicyclomine C- Scopolamine D- Tolterodine

#january2020usmle2k Which one of the following correctly describes nicotinic Ach receptors? A- Enzyme-linked receptors B- G-protein–coupled receptors C- Ligand-gated Na+/K+ channels

#january2020usmle2k Acute decrease in response to a drug after initial or repeated intake is known as which of the following drug interactions? A- Additive B- Permissive C- Synergetic D- Tachyphylactic

#january2020usmle2k What is the best treatment of gastroparesis in a diabetic patient? A- Gastric resection B- Metoclopramide C- Omeprazole D- Vagotomy

#january2020usmle2k Decreased production of which type of collagen may result in osteogenesis imperfecta? A- Type I B- Type II C- Type III D- Type IV

#january2020usmle2k Which of the following correctly describes pleiotropy? A- Increased severity of a disease in succeeding generations B- Not all individuals with mutant genotype show the same mutant phenotype C- One gene contributes to multiple phenotypic effects D- Phenotype is always the...

#january2020usmle2k Which of the following disorders is most likely related to body dysmorphic disorder? A-Generalized anxiety disorder B- Malingering C- Obsessive compulsive disorder D- Post-traumatic stress disorder

#january2020usmle2k Which of the following statements is true about innate immunity? A- Highly specific and refined over time B- Its main components are T cells, B cells and circulating antibodies C- Its main secreted proteins are immunoglobulins D- Resistance persists through generations

#january2020usmle2k Which one of the following medications act as bacteriostatic by inhibiting bacterial dihydrofolate reductase? A- Ciprofloxacin B- Dapsone C- Sulfamethoxazole D- Trimethoprim

#january2020usmle2k Which of the following organisms is responsible for antibiotic-associated colitis? A- Clostridium difficile B- Clostridium botulinum C- Clostridium perfringens D- Clostridium tetani

#january2020usmle2k Which of the following characterizes syndrome of inappropriate antidiuretic hormone secretion? A- Euvolemic hyponatremia with continued Na excretion B- Hyperosmotic volume contraction C- Recommended treatment is desmopressin acetate and hydration D- Serum osmolality is...

#january2020usmle2k Which one of the following medications stimulates muscarinic receptors in airways when inhaled? A- Bethanechol B- Carbachol C- Methacholine D- Pilocarpine

#january2020usmle2k Which type of bias is reflected when individuals with severe disease are uncovered because they die first? A- Confounding bias B- Late-look bias C- Measurement bias D- Selection bias

#january2020usmle2k Which type of bias is reflected when individuals with severe disease are uncovered because they die first? A- Confounding bias B- Late-look bias C- Measurement bias D- Selection bias

#january2020usmle2k During spermatogenesis, which type of cells enter meiosis 1 to from primary spermatocytes? A- Primordial germ cells B- Spermatids C- Type A spermatocytes D- Type B spermatocytes

#january2020usmle2k A middle aged male represents with an edematous circular skin lesion of black eschar. Which of the following bacteria is the most likely the causative organism of this condition? A- Bacillus anthracis B- Pneumonitis aeruginosa C- Staphylococcus aureus D- Streptococcus viridans

#january2020usmle2k Which of the following is the most prominent side effect of scopolamine? A- Bradycardia B- Miosis C- Mydriasis D- Profuse sweating

#january2020usmle2k Epinephrine acts on which one of the following receptors to constrict vascular smooth muscle? A- α1-Adrenoceptors B- α2-Adrenoceptors C- β1-Adrenoceptors D- β2-Adrenoceptors

#january2020usmle2k Deficiency of the enzyme argininosuccinate in urea cycle leads to the accumulation of which one of the following? A- Arginine B- Argininosuccinate C- Citrulline D- Ornithine

#january2020usmle2k What is the most common injury resulting from wearing a heavy backpack for a long time? A- Costoclavicular syndrome B- Frozen shoulder C- Rotator cuff injury D- Shoulder dislocation