Usage for hash tag: february2020usmle2ck

#february2020usmle2ck Varicella zoster vaccine is not recommended if an elderly patient already developed shingles. A- True B- False

#february2020usmle2ck A patient presents to the ER with acute myocardial infarction. After administration of aspirin and oxygen what is the nest step of action? A- Administer metoprolol B- Check cardiac biomarkers C- Initiate perfusion therapy D- Send for echocardiography

#february2020usmle2ck Which of the following is the most common cause of acute mesenteric ischemia? A- Abdominal aortic aneurysm B- Embolism C- Mesenteric vein thrombosis D- Vascular autoimmune disease

#february2020usmle2ck Which of the following is the mechanism of action of cromolyn for asthmatic patients? A- Blocks adenosine receptors in bronchial smooth muscle B- Inhibits COX 2 C- Inhibits phosphodiesterase D- Prevents degradation of mast cells

#february2020usmle2ck Which of the following receptors are membrane receptors (not intracellular)? A- Receptors for steroids B- Receptors for thyroid hormones C- Receptors for vitamin D D- The nicotinic receptors for acetylcholine

#february2020usmle2ck Which of the following statements correctly describe the lag time of a drug? A- Time from administration of the drug to appearance in blood B- Time from administration of the drug to reaching minimal effect concentration C- Time from administration of the drug to reaching...

#february2020usmle2ck Which of the following conditions is caused by a frameshift mutation? A- Becker muscular dystrophy B- Duchenne muscular dystrophy C- Hereditary nonpolyposis colorectal cancer D- Sickle cell disease

#february2020usmle2ck Which one of the following types of necrosis is most likely associated with myocardial infarction? A- Caseous B- Coagulative C- Fibrinoid D- Liquefactive

#february2020usmle2ck Which of the following organisms is associated with toxic shock syndrome due to exotoxin A? A- Clostridium perfringens B- Staphylococcus aureus C- Streptococcus pyogenes D- Vibrio cholera

#february2020usmle2ck Which of the following virus infections mostly develops chronic hepatitis? A- Hepatitis A B- Hepatitis B C- Hepatitis C

#february2020usmle2ck Which of the following antibiotics is the most appropriate treatment of mycoplasma pneumonia? A- Ampicillin B- Azithromycin C- Doxycycline D- Gentamicin

#february2020usmle2ck Which of the following arteries is the most common site of coronary artery occlusion? A- Left anterior descending artery B- Left circumflex artery C- Posterior descending artery D- Right coronary artery

#february2020usmle2ck Which of the following drugs is the effective treatment of benzodiazepines toxicity? A- Atropine B- Dimercaprol C- Flumazenil D- Penicillamine

#february2020usmle2ck Which of the following correctly describes permissive drug interaction? A- Decrease in response of a drug after repeated administration B- Effect of drug A and drug B is equal to the sum of their individual effects C- Effect of drug A and drug B is greater than the sum of...

#february2020usmle2ck Which of the following drugs is an ergosterol synthesis inhibitor? A-Acyclovir B-Ampicillin C-Ketoconazole D-Ritonavir

#february2020usmle2ck Which of the following autoantibodies is associated with diffuse scleroderma? A- Anti-histone B- Anti-DNA topoisomerase 1 C- Anti-SSA D- Anti-SSB

#february2020usmle2ck Which one of the following cell markers is unique for NK cells? A- CD14 B- CD16 C- CD40 D- CD56

#february2020usmle2ck Which of the following disorders is considered a nephrotic syndrome? A- Alport syndrome B- Goodpasture syndrome C- IgA nephropathy (Berger disease) D- Minimal change disease

#february2020usmle2ck Which of the following organisms is associated with pneumonia precipitated by aerosolized water (air conditions)? A- Chlamydophila pneumonia B- Legionella pneumophila C- Mycoplasma pneumonia D- Pneumocystis jirovecii

#february2020usmle2ck Which of the following is the most sensitive test for myocardial infarction? A- Creatine kinase myocardial fraction (CK-MB) B- Lactose dehydrogenase (LDH) C- Troponin-1 D- Troponin-C