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A client with chronic kidney disease receives a prescription for darbepoetin alfa 40 mcg subcutaneous every 7 days.

The darbepoetin alfa vial is labeled, "60 mcg/mL." How many mL should the nurse administer? round to the nearest tenth.

A.

0.7 mL.

B.

1.0 mL.

C.

1.3 mL.

D.

1.7 mL.

Answer and Explanation

The Correct Answer is A

Step 1 is to determine the amount of darbepoetin alfa in each mL of solution. The vial is labeled as “60 mcg/mL”, which means each mL contains 60 mcg of darbepoetin alfa.

Step 2 is to calculate the volume of the solution that contains 40 mcg of darbepoetin alfa. This can be done by dividing the prescribed dosage by the concentration of the solution. So, the volume is 40 mcg ÷ 60 mcg/mL = 0.67 mL.

However, since we need to round to the nearest tenth, the volume becomes 0.7 mL.

So, the correct answer is, after analysing all choices, the nurse should administer 0.7 mL of the darbepoetin alfa solution.


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Related Questions

Correct Answer is ["A","C","D","E"]

Explanation

Choice A rationale:

Verapamil is a calcium channel blocker and is expected to decrease heart rate by inhibiting calcium influx into cardiac cells, particularly in the SA (sinoatrial) node, where it can slow down the heart's electrical impulses.

Choice B rationale:

Increased contractility is not an expected outcome of verapamil use. In fact, verapamil's main action is to decrease myocardial contractility, making it useful for treating conditions like angina and atrial fibrillation.

Choice C rationale:

Verapamil is known to dilate coronary arteries, which can improve blood flow to the heart muscle and relieve symptoms of angina.

Choice D rationale:

Reduced blood pressure is an expected outcome of verapamil use due to its vasodilatory effects on peripheral blood vessels. This can be beneficial in treating hypertension and angina.

Choice E rationale:

Relieved chest pain is an expected outcome of verapamil use, particularly in the case of variant angina (Prinzmetal's angina), as it helps to relax coronary arteries and reduce coronary artery spasm, which is a common cause of chest pain in this condition.

Correct Answer is C

Explanation

Choice A rationale:

Ketonuria is not a common complication of diabetes insipidus. Ketonuria is associated with diabetes mellitus, a different condition that results in the accumulation of ketones in the urine due to insufficient insulin.

Choice B rationale:

Peripheral edema is also an unlikely complication of diabetes insipidus. Diabetes insipidus is characterized by excessive thirst and urination, not fluid retention or peripheral edema.

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