Which is the most dangerous electrolyte imbalance?

hyperkalemia

hyponatremia

hypokalemia

hypernatremia

Answer and Explanation

The Correct Answer is A

A. hyperkalemia: Elevated potassium can cause fatal cardiac arrhythmias.

B. hyponatremia: While it can be serious, it typically causes neurologic symptoms and is less immediately life-threatening than hyperkalemia.

C. hypokalemia: Also dangerous but usually less acutely life-threatening than hyperkalemia.

D. hypernatremia: Can cause serious symptoms but not as immediately dangerous to cardiac function.

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Correct Answer is C

Explanation

A. intravascular: This compartment contains only about 5% of body fluid.

B. extracellular: Although significant, it accounts for only about one-third of total body water.

C. intracellular: The intracellular fluid compartment contains about two-thirds of the body’s water.

D. interstitial: Part of the extracellular fluid but only about 15% of total body water.

A. vertical compartment B. interstitial compartment C. horizontal compartment D. intracellular compartment

Correct Answer is D

Explanation

A. Vertical compartment: This is not a recognized body fluid compartment.

B. Interstitial compartment: This is part of the extracellular fluid, but substances must move further to be effective.

C. Horizontal compartment: Not a physiological term.

D. Intracellular compartment: Substances must enter the cells to exert their intended effect.

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Which is the most dangerous electrolyte imbalance?

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Naxlex Comprehensive Predictor Exams

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

Correct Answer is C

Explanation

When patients take substances into the body, they first enter the extracellular compartment. In order to carry out their function, must enter the:

Correct Answer is D

Explanation

Aldosterone:

Water is lost from the body through:

When water is lost from the body but there is no electrolyte loss, this condition is called:

The normal elasticity and resiliency of the skin caused by the outward pressure of the cells and interstitial fluid is called:

A person with hypokalemia should be encouraged to:

The lowest percentage of body fluids occurs in:

A nurse is providing care to a patient experiencing a multisystem disease process. Because it is the main extracurricular cation, and is the primary electrolyte involved in determining body fluid volumes, the nurse monitors the laboratory values of which of the following electrolytes?

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: