A Middle-Aged Man Is Evaluated for Polydipsia and Polyuria

question 32

Multiple Choice

A middle-aged man is evaluated for polydipsia and polyuria. His 24-hour urine volume is 7.0 L with a low osmolality, and is negative for red blood cells, leukocytes, protein, and glucose. His blood pressure and heart rate are both normal. Which of the following is a likely cause of polyuria in this patient?

• A) Acute attack of diabetes mellitus without glucosuria
• B) Acute renal failure with a severe decrease in glomerular filtration rate (GFR)
• C) Cerebrovascular accident damaging the anterior pituitary gland
• D) Renal supersensitivity to the effects of antidiuretic hormone (ADH)
• E) Suppression of ADH secretion due to polydipsia

Recognize the ecological roles and adaptations of parasites within ecosystems.

Understand the importance of segmentation in animal body plans and its implications for movement and organ development.

Analyze the adaptations involved in transitioning between feeding strategies amongst animals.

Identify and describe the structure of different functional groups and compounds in organic chemistry.

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Definitions:

Sac

A fluid-filled structure in the body which can enclose or secrete substances, as in cysts or secretory cells.

Hemoptysis

The expectoration (coughing up) of blood or bloody sputum from the lungs or airways.

Spitting

Ejecting saliva forcibly from one's mouth, sometimes as a response to an irritant or infection.

Basophil

A type of white blood cell involved in inflammatory reactions and allergic responses by releasing histamine and other mediators.