A nurse is caring for a client who is to receive potassium replacement. The provider’s prescription reads, “Potassium chloride 30 mEq in 0.9% sodium chloride 100 mL IV over 30 min.” For which of the following reasons should the nurse clarify this prescription with the provider?

The potassium infusion rate is too rapid.

Another formulation of potassium should be given IV.

Potassium chloride should be diluted in dextrose 5% in water.

The client should be treated by giving potassium by IV bolus.

Answer and Explanation

The Correct Answer is A

According to various guidelines12345, the recommended rate of intravenous potassium replacement is 10-20 mEq/h with continuous ECG monitoring. The maximum rate is 40 mEq/h in emergency situations. The prescription given by the provider exceeds this limit and could cause cardiac arrhythmias or hyperkalemia.

Choice B is wrong because potassium chloride is a common and appropriate formulation of potassium for intravenous administration.

Choice C is wrong because potassium chloride should not be diluted in dextrose 5% in water, as this could cause hyperglycemia or osmotic diuresis.

Choice D is wrong because potassium should never be given by IV bolus, as this could cause cardiac arrest or tissue necrosis.

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Correct Answer is C

Explanation

Atorvastatin is a medication that belongs to a group of drugs called statins. It is used to lower blood levels of “bad” cholesterol (low-density lipoprotein, or LDL), to increase levels of “good” cholesterol (high-density lipoprotein, or HDL), and to lower triglycerides (a type of fat in the blood). The treatment has been effective if the LDL level is reduced, as high LDL levels can increase the risk of heart disease and stroke. A normal range for LDL is less than 100 mg/dL.

Choice A is wrong because urine specific gravity is a measure of how concentrated the urine is, not how much cholesterol is in the blood. A normal range for urine specific gravity is 1.005 to 1.0304.

Choice B is wrong because BUN (blood urea nitrogen) is a measure of how well the kidneys are working, not how much cholesterol is in the blood. A normal range for BUN is 7 to 20 mg/dL.

Choice D is wrong because blood glucose is a measure of how much sugar is in the blood, not how much cholesterol is in the blood.

A normal range for blood glucose is 70 to 100 mg/dL.

A. Gastric bleeding. B. Pruritus. C. Cough. D. Tachypnea.

Correct Answer is B

Explanation

Pruritus is a common adverse effect of morphine administered via continuous epidural infusion. It is caused by the release of histamine from mast cells in the skin. Pruritus can be treated with antihistamines or opioid antagonists. Choice A is wrong because gastric bleeding is not a common adverse effect of morphine administered via continuous epidural infusion.

Gastric bleeding can occur due to peptic ulcer disease, nonsteroidal anti inflammatory drugs (NSAIDs), or anticoagulants.

Choice C is wrong because cough is not a common adverse effect of morphine administered via continuous epidural infusion.

Cough can be caused by respiratory infections, asthma, or chronic obstructive pulmonary disease (COPD).

Choice D is wrong because tachypnea is not a common adverse effect of morphine administered via continuous epidural infusion.

Tachypnea can be caused by hypoxia, anxiety, pain, or fever. Morphine can cause respiratory depression, which is characterized by bradypnea, not tachypnea.

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A nurse is caring for a client who is to receive potassium replacement. The provider’s prescription reads, “Potassium chloride 30 mEq in 0.9% sodium chloride 100 mL IV over 30 min.” For which of the following reasons should the nurse clarify this prescription with the provider?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reviewing the laboratory values of a client who is taking atorvastatin. Which of the following laboratory values indicates the treatment has been effective?

Correct Answer is C

Explanation

A nurse is planning care for a client who is receiving morphine via continuous epidural infusion. The nurse should monitor the client for which of the following adverse effects?

Correct Answer is B

Explanation

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