| Author | 3 Posts |
ManuNastai
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7. A 10-year-old boy with asthma has been receiving oral hydrocortisone daily in increasing doses for the past 2 years. He is obese and has growth retardation and edema of his lower limbs. Which of the following is the most likely explanation for the edema?
A ) The drug binds to both glucocorticoid and mineralocorticoid receptors
B ) The drug is converted to a mineralocorticoid in the liver
C ) Pulmonary production of angiotensin is increased
D ) Renin activity is increased because of stress
E ) Secretion of ADH (vasopressin) is increased because of stress
8. Eight hours after ingesting 30 g of acetaminophen in a suicide attempt, a 17-year-old boy is admitted to the hospital with nausea and vomiting. If left untreated, the complication most likely to develop in this patient is
A
) cardiac arrhythmia
B
) gastrointestinal bleeding
C
) hepatic necrosis
D
) respiratory depression
E
) tonic-clonic seizures
12. A patient who is taking probenecid is expected to have an increased excretion of which of the following?
A ) Cephalosporin
B ) Creatinine
C ) Penicillin
D ) Tetracycline
E ) Urate
21. An obese 44-year-old man with type 2 diabetes mellitus is unable to achieve appropriate glycemic control with diet and exercise. The physician consequently prescribes a sulfonylurea. This class of drugs promotes the release of insulin from pancreatic β cells through which of the following factors?
A ) Inhibition of ATP-sensitive K+ channels
B ) Inhibition of Na+–K+ ATPase
C ) Inhibition of voltage-sensitive Ca2+ channels
D ) Stimulation of guanylylate cyclase
E) Stimulation of phosphodiesterase
26. Which of the following drugs produces vasoconstriction that is not blocked by prazosin and bradycardia that is blocked by scopolamine?
A ) Amphetamine
B ) Angiotensin
C ) Norepinephrine
D ) Phenylephrine
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| NE
Forum Guru
Topics: 53
Posts: 504
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7-A
8-C
12- E
21-A
26-B
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| ManuNastai
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great, thanks
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