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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is D
Explanation
Extracellular fluid deficit.
Choice A rationale:
Intracellular fluid deficit is a decrease in the fluid inside the cells, which may occur in conditions such as diabetic ketoacidosis. Severe burns are more likely to cause extracellular fluid shifts rather than intracellular fluid deficits.
Choice B rationale:
Interstitial fluid deficit involves a decrease in fluid in the interstitial spaces between cells. While burns can lead to fluid shifts, the primary concern is fluid loss from the vascular space (extracellular fluid).
Choice C rationale:
Intracellular fluid overload is not a typical health problem associated with severe burns. Burn injuries are more likely to cause fluid loss and shifts out of the intracellular space.
Choice D rationale:
Severe burns can result in significant loss of plasma and extracellular fluid, leading to hypovolemia and extracellular fluid deficit. This fluid loss can lead to hypovolemic shock and other complications if not adequately managed.
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