Q- Deficiency of which of the following enzymes most likely result in the development of Cori disease?
A- Debranching enzyme (alpha-1,6-glucoside)
B- Glucose-6-phosphatase
C- Lysosomal alpha-1,4 glucosidase
D- Muscle glycogen phosphorylase
Answer: https://t.co/YesRaHfvcw
Q- Which of the following is the acid-base disturbance most likely seen in a case of aspirin toxicity?
A-Metabolic acidosis only
B-Respiratory alkalosis only
C-Respiratory acidosis and metabolic alkalosis
D-Respiratory alkalosis and metabolic acidosis
https://t.co/Y0FI5HWeKy
Q- Heparin acts by binding to which of the following substances to achieve its anticoagulant activity?#usmle#medicine#pharmacology
A-Antithrombin III
B-Factor V
C-Factor VIII
D-Prothrombin
Answer: https://t.co/sVGaBib33e
Q- Gaucher disease is a genetic disorder that may cause hepatomegaly and splenomegaly. It is caused by a deficiency of which one of the following enzymes?#USMLE
A-Alpha-galactosidase
B-Glucocerebrosidase
C-Hexosaminidase A
D-Sphingomyelinase
Answer: https://t.co/E2GJrjkwlY
Q- What dose (in mg) of a drug that distributes into total body water is required to achieve an initial plasma concentration of 4 mg/L in a patient weighing 70 kg?#usmle#pharmacology#medicine
A-16 mg
B-28 mg
C-168 mg
D-280 mg
Answer: https://t.co/w1NmKR0peG
Q- Which one of the following substances is a synthetic nonsteroidal compound and mimics the effect of estrogen in the body?#usmle#medicine#pharmacology
A-Diethylstilbestrol
B-Estradiol
C-Estriol
D-Estrone
Answer: https://t.co/2irjhsj3uj
Q- Which one of the following medications acts by irreversible inhibition of the platelet P2Y12 receptor?#usmle#USMLE#medicine
A-Aspirin
B-Clopidogrel
C-Enoxaparin
D-Heparin
Answer: https://t.co/U5iv0PVFve
Q- In which one of the following parts of the GIT most of the ingested iron is absorbed?#usmle#USMLE#medicine
A- Stomach
B- Duodenum
C- Ileum
D- Ascending colon
E- Descending colon
Answer: https://t.co/8WwyXma21f
Q- A group of drugs bind to a receptor but do not produce any pharmacological effect is called:@usmle#USMLE#medicine#pharmacology
A- Agonist
B- Antagonist
C- Partial agonist
Answer: https://t.co/5GluyIfyHT
Q- Which one of the following drugs results in disulfiram- like action when it is accompanied with alcohol?#usmle#USMLE#medicine#pharmacology
A- Ampicillin
B- Cefotetan
C- Cimetidine
D- Dipyridamole
Answer: https://t.co/pnVuyyHeYN
Q- Which of the following is a characteristic feature of Crohn's disease?#usmle#USMLE#medicine
A-Skip lesions
B-Continuous involvement of the rectum
C-Presence of pseudomembranes
D-Eosinophilic infiltration in the colon
Answer: https://t.co/NyIWpP9wPH