a nurse assesses a client who is prescribed a medication that inhibits aldosterone secretion and release for which potential complications should the

ATI RN

ATI Fluid Electrolyte and Acid-Base Regulation

1. A nurse assesses a client who is prescribed a medication that inhibits aldosterone secretion and release. For which potential complications should the nurse assess? (Select all that apply.)

A. Urine output of 25 mL/hr
B. Serum potassium level of 5.4 mEq/L
C. Blood osmolality of 250 mOsm/L
D.

Correct answer: A

Rationale:

2. What is the most abundant positive ion in blood plasma?

A. Potassium.
B. Calcium.
C. Sodium.
D. Both potassium and sodium are in equal concentrations.

Correct answer: C

Rationale: The correct answer is C: Sodium. Sodium (Na+) is the most abundant cation in the extracellular fluid, including blood plasma. It plays a crucial role in maintaining fluid balance, nerve function, and is essential for various physiological processes. Choice A, Potassium, is also an important ion in the body but is predominantly found intracellularly. Choice B, Calcium, is an essential mineral in the body but is not the most abundant positive ion in blood plasma. Choice D is incorrect as sodium is the primary positive ion in blood plasma, with a much higher concentration compared to potassium.

3. A nurse is caring for a client who has just had a central venous access line inserted. Which action should the nurse take next?

A. Begin the prescribed infusion via the new access
B. Ensure an x-ray is completed to confirm placement.
C. Check medication calculations with a second RN.
D. Make sure the solution is appropriate for a central line

Correct answer: B

Rationale:

4. The baroreceptors, located in the left atrium and in the carotid and aortic arches, respond to changes in the circulating blood volume and regulate sympathetic and parasympathetic neural activity as well as endocrine activities. Sympathetic stimulation constricts renal arterioles, causing what effect?

A. Decrease in the release of aldosterone
B. Increase of filtration in the Loop of Henle
C. Decrease in the reabsorption of sodium
D. Decrease in glomerular filtration

Correct answer: D

Rationale:

5. Which electrolyte is important in the formation of the thyroid hormones?

A. Sodium
B. Iodine
C. Iron
D. Chloride

Correct answer: B

Rationale: Iodine is the correct answer because it is essential for the synthesis of thyroid hormones. The thyroid gland incorporates iodine into thyroid hormones such as thyroxine (T4) and triiodothyronine (T3). These hormones are crucial for regulating metabolism, growth, and development. Sodium, iron, and chloride are not directly involved in the formation of thyroid hormones, making them incorrect choices.