A nurse is caring for a client who is experiencing acute kidney failure after a surgical procedure. Telemetry monitoring shows a widened QRS, frequent premature ventricular contractions, and a heart rate of 55/min. Which of the following electrolyte imbalances should the nurse identify?

Hyperkalemia.

Hypocalcemia.

Hyperglycemia.

Hypophosphatemia.

Answer and Explanation

The Correct Answer is A

Choice A rationale:
The combination of widened QRS, frequent premature ventricular contractions (PVCs), and bradycardia (heart rate of 55/min) on telemetry monitoring suggests hyperkalemia. Elevated potassium levels in the blood can cause delayed repolarization of cardiac cells, leading to widened QRS complexes and PVCs. Bradycardia is another common manifestation of hyperkalemia.
Choice B rationale:
Hypocalcemia, characterized by low calcium levels in the blood, can lead to cardiac arrhythmias, but it typically presents with a prolonged QT interval rather than widened QRS complexes and PVCs.
Choice C rationale:
Hyperglycemia, which is high blood glucose levels, does not directly affect the electrocardiogram (ECG) parameters like QRS width or heart rate. It may have systemic effects, but it is not responsible for the ECG changes described in the scenario.
Choice D rationale:
Hypophosphatemia, or low levels of phosphate in the blood, can cause muscle weakness and may have systemic effects, but it is not associated with the specific ECG changes seen in hyperkalemia, such as widened QRS complexes and PVCs.

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Correct Answer is B

Explanation

Choice A rationale:

Increasing the intake of dairy products is not recommended for a client with irritable bowel syndrome (IBS) as dairy can exacerbate symptoms in some individuals, particularly if they are lactose intolerant.

Choice B rationale:

Drinking ten glasses of water each day is a helpful recommendation for clients with IBS. Staying hydrated can aid in digestion and help alleviate symptoms like constipation.

Choice C rationale:

Decreasing daily fiber intake to 20 grams is not advisable for IBS management. Adequate fiber intake is essential for maintaining bowel regularity and overall gut health. Instead, it is recommended to focus on soluble fiber and gradually increase fiber intake to avoid exacerbating symptoms.

Choice D rationale:

Encouraging the intake of clear carbonated fluids is not ideal for clients with IBS. Carbonated beverages can cause bloating and gas, potentially worsening symptoms in individuals with sensitive digestive systems. It is better to recommend non-carbonated, non-caffeinated fluids for hydration.

A. Potassium level. B. Hemoglobin level. C. Kidney function tests. D. Liver function tests.

Correct Answer is D

Explanation

Choice A rationale:
(Potassium level) Lovastatin is a medication used to treat high cholesterol levels. While potassium levels are important to monitor for certain conditions, they are not directly related to the initiation of lovastatin therapy. Therefore, this is not the correct choice for diagnostic testing before starting the medication.
Choice B rationale:
(Hemoglobin level) Hemoglobin levels are important to assess for anemia or other blood disorders. However, they are not specifically required before starting lovastatin therapy. Therefore, this is not the correct choice for diagnostic testing before starting the medication.
Choice C rationale:
(Kidney function tests) While kidney function tests are essential for many medications to ensure proper excretion and avoid toxicity, they are not directly related to the initiation of lovastatin therapy. Therefore, this is not the correct choice for diagnostic testing before starting the medication.
Choice D rationale:
(Liver function tests) Liver function tests are crucial before starting lovastatin therapy. Lovastatin is metabolized in the liver, and it can potentially cause liver damage or abnormalities in liver enzymes. Monitoring liver function helps detect any pre-existing liver conditions and ensures the safe use of the medication. Therefore, this is the correct choice for diagnostic testing before starting the medication.

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A nurse is caring for a client who is experiencing acute kidney failure after a surgical procedure. Telemetry monitoring shows a widened QRS, frequent premature ventricular contractions, and a heart rate of 55/min. Which of the following electrolyte imbalances should the nurse identify?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Correct Answer is D

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