A patient prescribed spironolactone is demonstrating ECG changes and complaining of muscle weakness. The nurse realizes this patient is exhibiting signs of which electrolyte imbalance?

Hypocalcemia.

Hypercalcemia.

Hyperkalemia.

Hypokalemia.

Answer and Explanation

The Correct Answer is C

Choice A rationale:

Hypocalcemia refers to low levels of calcium in the blood, which can present with symptoms like muscle cramps, numbness, and tingling. However, this choice is not relevant to the patient's symptoms in the scenario.

Choice B rationale:

Hypercalcemia is an electrolyte imbalance characterized by high levels of calcium in the blood. It can lead to ECG changes and symptoms like muscle weakness, confusion, and constipation. However, this is not the correct answer in the given scenario.

Choice C rationale:

The patient's symptoms of ECG changes and muscle weakness are consistent with hyperkalemia. Spironolactone is a potassium-sparing diuretic, and its use can lead to increased potassium levels in the blood (hyperkalemia), which can affect the heart's electrical activity and cause muscle weakness.

Choice D rationale:

Hypokalemia is a condition where there is a low level of potassium in the blood. It can lead to muscle weakness, ECG changes, and other symptoms, but it is not the correct answer in this specific situation involving spironolactone use.

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Correct Answer is C

Explanation

PacO2 50 mm Hg. Choice A rationale:

Potassium levels are not directly related to respiratory acidosis. Potassium levels may be affected in certain conditions, but they are not specific indicators of respiratory acidosis.

Choice B rationale:

HCO3- (bicarbonate) levels may be elevated in metabolic alkalosis, not respiratory acidosis. In respiratory acidosis, the primary abnormality is an increased PacO2, not HCO3-.

Choice C rationale:

The partial pressure of carbon dioxide (PacO2) is a key parameter in diagnosing respiratory acidosis. In this case, a PacO2 of 50 mm Hg suggests hypoventilation and an excess of carbon dioxide in the blood, contributing to acidosis.

Choice D rationale:

The pH level given (pH 7.45) is within the normal range, which contradicts the diagnosis of respiratory acidosis. In respiratory acidosis, the pH would be expected to be below the normal range of 7.35-7.45 due to increased carbon dioxide levels.

A. Drug toxicity. B. Other electrolyte disturbances. C. Hypertension. D. Visual disturbances.

Correct Answer is B

Explanation

Other electrolyte disturbances.

Choice A rationale:

Drug toxicity is not directly related to hypocalcemia. The main concern in hypocalcemia is the calcium imbalance itself, not drug toxicity.

Choice B rationale:

Other electrolyte disturbances should be assessed because imbalances in other electrolytes, such as potassium and magnesium, are often associated with hypocalcemia. Electrolyte imbalances can interact and exacerbate each other, potentially leading to more severe complications.

Choice C rationale:

Hypertension is not a typical assessment finding in hypocalcemia. Hypertension is not directly related to calcium levels but may have other underlying causes.

Choice D rationale:

Visual disturbances are not commonly associated with hypocalcemia. Hypocalcemia is more likely to present with neuromuscular and cardiovascular symptoms, rather than visual disturbances.

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A patient prescribed spironolactone is demonstrating ECG changes and complaining of muscle weakness. The nurse realizes this patient is exhibiting signs of which electrolyte imbalance?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reviewing the laboratory values of a client who has respiratory acidosis. Which of the following findings should the nurse expect?

Correct Answer is C

Explanation

The nurse is caring for a patient diagnosed with hypocalcemia. What additional assessments should the nurse include when caring for this patient?

Correct Answer is B

Explanation

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