Property:AnswerBExp
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Malformation refers to an error that occurs anywhere during the embryonic period between 3 to 8 weeks of embryogenesis. +
Corticosterone is one of the products of 11β-hydroxylase and would decrease rather than increase with metyrapone therapy. +
Oral metronidazole is indicated as an initial treatment of a mild form of C. diff infection. It is usually administered for 10-14 days. +
This patient has symptoms of both major depression and cognitive impairment, making pseudodementia a high differential. +
''Rhizopus'' species are irregular, broad, non-septate hyphae that branch at right angles. +
This is usually used for evaluating extracranial and intracranial atherosclerotic disease. It is rarely used in the acute setting. +
Typical changes observed after an ischemic infarct may not be evident during the early hours following onset of symptoms of stroke. Some of the subtle changes seen are loss of gray-white differentiation and swelling of the gyri that produces sulcal effacement. +
These investigations are not indicated in the first 24 hours of onset of stroke. They are done to investigate the etiology when the patient is stable. +
Elevated blood pressure is generally not treated until it is >220/120 mmHg, or when BP is <220/120 mmHg with evidence of end organ damage (e.g., myocardial infarction, aortic dissection, pulmonary edema, and hypertensive encephalopathy). +
Incorrect
CK-MB only stays elevated for 1-2 days, and stress test is a way to increase the sensitivity of detection of CAD +
Incorrect
Echocardiography is the best test to evaluate the valve and wall motion function. +
The presentation of this patient is consistent with gouty arthritis, a condition characterized by deposition of monosodium urate crystals. +
In pseudogout, rhomboidal crystals exhibit weakly positive birefringence under polarized light. +
Atropine is a competitive antagonist of acetylcholine. When a competitive antagonist is present, the potency of the agonist is altered and the curve of the effect of the agonist by increasing dose will be shifted towards the right. +
Since the patient is dehydrated, his spot urine sodium is expected to be low because he is having extrarenal losses of sodium, while his BUN/Creatinine ratio should be high reflecting a low fluid volume in his body. +
IV saline is not the first step in the management of a patient having an elevated potassium level. The first step in the management of hyperkalemia is to rule out pseudohyperkalemia by rechecking the electrolytes level. +