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The most abundant anion in plasma membranes is:

phosphate

potassium

calcium

chloride

Answer and Explanation

The Correct Answer is D

A. Phosphate: Phosphate is mainly found intracellularly.

B. Potassium: Potassium is a cation, not an anion.

C. Calcium: Calcium is a cation.

D. Chloride: Chloride is the most abundant extracellular anion and important in fluid balance.

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Correct Answer is A

Explanation

A. Calcium: Calcium is the most abundant electrolyte, primarily stored in bones and teeth.

B. Magnesium: Magnesium is important but less abundant than calcium.

C. Sodium: Sodium is the most abundant extracellular cation but not the most abundant overall.

D. Potassium: Potassium is the most abundant intracellular cation but calcium exceeds it body-wide.

A. joints B. eye C. blood vessels D. brain

Correct Answer is B

Explanation

A. joints: Joints contain synovial fluid, not aqueous or vitreous humor.

B. eye: The aqueous humor is in the anterior chamber, and the vitreous humor fills the posterior chamber of the eye.

C. blood vessels: Blood vessels contain plasma and blood cells, not these fluids.

D. brain: The brain contains cerebrospinal fluid, not aqueous or vitreous humor.

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The most abundant anion in plasma membranes is:

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Naxlex Comprehensive Predictor Exams

The most abundant electrolyte in the body is:

Correct Answer is A

Explanation

The vitreous and aqueous humors are found in the:

Correct Answer is B

Explanation

An example of interstitial fluid is:

Intracellular fluid is found:

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 backup of fluid in the lungs which can occur as a result of heart failure is called:

Daily water intake and output (I & O) in the normal adult is approximately how many ml?

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.

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

Osmosis differs from diffusion in that it refers to: