A Hospital Patient Produces 4 ML/min of Urine with a Urea

question 142

Multiple Choice

A hospital patient produces 4 mL/min of urine with a urea concentration of 8 mg/mL. Venous blood draw reveals urea concentration of 0.4 mg/mL. What is the percentage of cleared urea from glomerular filtrate?

• A) 40%
• B) 56%
• C) 64%
• D) 72%
• E) 80%

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Definitions:

Defense Against Anxiety

Psychological mechanisms or strategies used unconsciously to protect oneself from anxiety arising from unacceptable thoughts or feelings.

Defense Mechanism

Psychological strategies used unconsciously by individuals to protect themselves from anxiety or to face reality.

Rationalization

The process of explaining one's behavior or decisions with plausible reasons, often to hide true motives.

Reaction Formation

A defense mechanism where an individual unconsciously replaces unacceptable impulses with their opposites.