The diagnosis of Cushing syndrome is often based on:
Obesity
A 24-hour urine collection
Chronic renal failure
Alcoholism
The Correct Answer is B
A. Obesity is a common symptom of Cushing syndrome but is not the primary diagnostic criterion. Other tests are needed to confirm the diagnosis.
B. A 24-hour urine collection for cortisol is one of the most common and reliable methods for diagnosing Cushing syndrome. Elevated cortisol levels in the urine are indicative of the syndrome.
C. Chronic renal failure is not related to the diagnosis of Cushing syndrome. While Cushing syndrome may affect renal function, it is not the primary diagnostic tool.
D. Alcoholism can cause symptoms similar to those of Cushing syndrome, but it is not used as a diagnostic criterion. The diagnosis of Cushing syndrome requires specific tests, such as urine cortisol measurement.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Anorexia is a common manifestation of SIADH due to the effects of hyponatremia (low sodium levels) and fluid retention.
B. Edema of fluid overload is not a typical manifestation of SIADH. While SIADH leads to fluid retention due to excess antidiuretic hormone (ADH), the excess fluid is typically intracellular and does not cause peripheral edema as seen in conditions like heart failure or nephrotic syndrome.
C. Vomiting is a common manifestation of SIADH, often related to the effects of hyponatremia, which can irritate the gastrointestinal system.
D. Nausea is also a common symptom of SIADH due to the imbalance of electrolytes, particularly low sodium levels, which can affect the brain and lead to nausea.
Correct Answer is A
Explanation
A. Alkalemia refers to a condition in which the blood pH is higher than the normal range (7.35–7.45), specifically above 7.45. A pH of 7.5 indicates alkalemia, which is an increase in blood pH.
B. Alkalosis refers to a condition in which the body is in a state of alkalinity, but it is a broader term that can describe either metabolic or respiratory alkalosis. Alkalemia specifically refers to the pH measurement itself.
C. Acidosis refers to a condition in which the blood pH is lower than normal (below 7.35), indicating an excess of hydrogen ions or a deficiency of bicarbonate.
D. Acidemia refers to a condition in which the blood pH is below the normal range, indicating acidosis. A pH of 7.5 does not fall into this category.
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