The normal proportion of body water in an adult is which percentage of body weight?
75-95%
50-70%
greater than 80%
30-40%
The Correct Answer is B
A. 75–95%: This range is too high for adults; it applies more to infants.
B. 50–70%: Adult body water typically comprises about 50–70% of total body weight.
C. Greater than 80%: This is excessive for an adult body water percentage.
D. 30–40%: This is too low for average adults.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Is secreted when water intake is too low: ADH promotes water reabsorption by the kidneys when the body is dehydrated.
B. Increases bone formation: Bone formation is regulated by calcium and vitamin D, not ADH.
C. Regulates acid-base balance: The kidneys and lungs regulate acid-base balance, not ADH directly.
D. Stimulates the production of large amounts of urine: ADH reduces urine output by conserving water.
Correct Answer is D
Explanation
A. the lungs: Water is lost through respiration as vapor.
B. the skin: Water is lost via perspiration and insensible loss.
C. the kidneys: The primary site of regulated fluid loss via urine.
D. all of the answers are correct: All of these contribute to daily fluid loss, making this the correct and most complete answer.
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