A Substance (Y)is Found in the Plasma at a Concentration

question 3

Multiple Choice

A substance (Y) is found in the plasma at a concentration of 2 mg/dL.A 24-hour urine collection is performed to determine the renal clearance of Y.The following data are obtained: Urine volume: 1.44 L
Urine [Y]: 500 mg/L
What is the renal clearance rate of Y?

• A)5 mL/minute
• B)36 mL/minute
• C)50 mL/minute
• D)100 mL/minute
• E)250 mL/minute

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Definitions:

Latency Stage

A stage in psychosexual development proposed by Freud, occurring between ages 5 and puberty, where sexual feelings are dormant.

Anal Stage

The second stage in Freud's psychosexual development theory, focusing on toilet training and control over bodily wastes.

Genital Stage

A stage in Freud's psychosexual development theory occurring from puberty onwards, focused on mature sexual interests.

Phallic Stage

Freud's third stage of psychosexual development, focusing on the genital area as the primary source of pleasure.