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ATI RN · ATI Fluid and Electrolytes · Fluid and Electrolytes ATI

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Your patient has alcoholism, and you may suspect during your assessment that his serum magnesium is low. What will the nurse potentially expect to assess related to hypomagnesemia?

A. Tremor
B. Pruritus
C. Edema
D. Decreased blood pressure

Expert Explanatory Rationale

Correct Answer: Tremor

Question 2 of 5

The triage nurse notes upon assessment in the emergency room that the patient with anxiety is hyperventilating. The nurse is aware that hyperventilation is the most common cause of which acid-base imbalance?

A. Respiratory acidosis
B. Respiratory alkalosis
C. Increased PaCO2
D. Central nervous system (CNS) disturbances

Expert Explanatory Rationale

Correct Answer: Respiratory alkalosis

Question 3 of 5

The nurse is evaluating a patient's laboratory results. Based upon the laboratory findings, what results will cause the release of an antidiuretic hormone (ADH)?

A. Increased serum sodium
B. Decreased serum sodium
C. Decrease in serum osmolality
D. Decrease in thirst

Expert Explanatory Rationale

Correct Answer: Increased serum sodium

Question 4 of 5

Third spacing occurs when fluid moves out of the intravascular space but not into the intracellular space. Based upon this fluid shift, the nurse will expect the patient to demonstrate:

A. Hypertension
B. Bradycardia
C. Hypervolemia
D. Hypovolemia

Expert Explanatory Rationale

Correct Answer: Hypovolemia

Question 5 of 5

A nurse sees a variety of patients in the community health clinic. Which of the following patients would be at the greatest risk of dehydration?

A. An 18-year-old basketball player with a stress fracture of the right foot
B. An infant with diarrhea
C. A 45-year-old with stomach flu
D. An elderly patient living alone

Expert Explanatory Rationale

Correct Answer: An infant with diarrhea

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