a nurse is caring for clients with electrolyte imbalances on a medical surgical unit which clinical manifestations are correctly paired with the cont

ATI RN

ATI Fluid Electrolyte and Acid-Base Regulation

1. A nurse is caring for clients with electrolyte imbalances on a medical-surgical unit. Which clinical manifestations are correctly paired with the contributing electrolyte imbalance? (Select all that do not apply.)

A. Hypokalemia Flaccid paralysis with respiratory depression
B. Hyperphosphatemia Paresthesia with sensations of tingling and numbness
C. . Hyponatremia Decreased level of consciousness
D.

Correct answer: B

Rationale:

2. A patient has questioned the nurses administration of IV normal saline, asking whether sterile water would be a more appropriate choice than saltwater. Under what circumstances would the nurse administer electrolyte-free water intravenously?

A. Never, because it rapidly enters red blood cells, causing them to rupture.
B. When the patient is severely dehydrated resulting in neurologic signs and symptoms
C. When the patient is in excess of calcium and/or magnesium ions
D. When a patients fluid volume deficit is due to acute or chronic renal failure

Correct answer: A

Rationale:

3. 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.

4. What can cause dehydration?

A. Prolonged vomiting.
B. Prolonged diarrhea.
C. Too little fluid intake.
D. Prolonged vomiting, diarrhea, and too little fluid intake.

Correct answer: D

Rationale: Dehydration can result from significant fluid loss due to vomiting, diarrhea, or inadequate fluid intake. Prolonged vomiting and diarrhea lead to excessive fluid loss from the body, contributing to dehydration. Similarly, not consuming enough fluids can also result in dehydration. Choice A and B are too specific as they only mention one cause each, while choice C is also correct but does not encompass all the potential causes of dehydration as mentioned in choice D.

5. Which mineral is important in hemoglobin production?

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

Correct answer: C

Rationale: Iron (Fe) is a critical mineral in hemoglobin production. Hemoglobin is a protein found in red blood cells that is essential for transporting oxygen throughout the body. Sodium (Choice A), Iodine (Choice B), and Chloride (Choice D) are not directly involved in hemoglobin production. Sodium is an electrolyte that helps maintain fluid balance, Iodine is essential for thyroid hormone production, and Chloride is an electrolyte that helps regulate fluid balance and acidity in the body.