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Potassium is responsible for:

building muscle mass

maintaining blood glucose levels

neuromuscular and cardiac function

building bone structure and strength

Answer and Explanation

The Correct Answer is C

A. Building muscle mass: Protein intake and exercise influence muscle building, not potassium directly.

B. Maintaining blood glucose levels: Insulin and glucagon regulate blood glucose, not potassium.

C. Neuromuscular and cardiac function: Potassium is essential for nerve transmission and heart muscle contraction.

D. Building bone structure and strength: Calcium and phosphorus are key for bone health.

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Correct Answer is D

Explanation

A. young adults: They have a relatively high percentage of body water (50–60%).

B. children: Children have more body water than adults.

C. infants: Infants have the highest body water content (~70–80%).

D. elderly adults: Aging leads to a decrease in lean body mass and total body water.

A. in the plasma B. in the vitreous C. interstitial D. intracellular

Correct Answer is C

Explanation

A. in the plasma: Plasma is the intravascular compartment.

B. in the vitreous: Refers to the eye, not a common fluid compartment in systemic fluid balance.

C. interstitial: Edema is the accumulation of fluid in the interstitial (third) space.

D. intracellular: Intracellular fluid is within cells, not the typical site of edema.

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Potassium is responsible for:

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Naxlex Comprehensive Predictor Exams

The lowest percentage of body fluids occurs in:

Correct Answer is D

Explanation

Edema is a collection of fluid in which fluid compartment?

Correct Answer is C

Explanation

A patient with kidney disease is at risk for developing additional diseases related to excretion of body wastes. In order for the kidneys to remove this waste, they must produce hourly urine amounts of:

Antidiuretic hormone:

A patient who is started on oral nourishment along with IV fluid has the following amounts entered on his I and O sheet: juice 120 ml, cereal 180 ml, tea 150 ml, urine 380 ml, IV fluid 1050 ml, and emesis 50 ml. His total oral intake was:

Potassium is responsible for:

A nurse is admitting a patient who has been experiencing vomiting and diarrhea for the last 3 days. the nurse knows that based on the patient's symptoms, the amount of ADH secreted would most likely.

Which electrolyte has the greatest influence on water balance in the body:

The patient with systemic edema is given Lasix to reduce the edema. A serious side effect of this diuretic is the promotion of hypokalemia, which may result in:

The largest percentage of total body water in an adult is located in which fluid compartment?