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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 C

Explanation

The correct answer is: C. Bronchospasm.

Metoprolol is a selective beta-1 blocker, primarily affecting the heart, but it can still have some impact on beta-2 receptors in the lungs. In clients with respiratory conditions like asthma or COPD, beta-blockers can trigger bronchospasm, leading to breathing difficulties.

Here's why the other options are less likely to be adverse effects of metoprolol:

  • A. Tachycardia: Metoprolol actually lowers heart rate, so tachycardia is not a typical adverse effect. Instead, bradycardia (slow heart rate) is more common.

  • B. Hyperglycemia: Beta-blockers can sometimes mask symptoms of hypoglycemia, but they don’t directly cause high blood sugar.

  • D. Hyperkalemia: Metoprolol doesn’t significantly affect potassium levels, so hyperkalemia is not a common concern.

Since metoprolol is frequently used in hypertension management, nurses must monitor clients for bradycardia, hypotension, and signs of bronchospasm, especially in individuals with respiratory disorders.

Correct Answer is A

Explanation

Choice A rationale:

The client's statement, "I should avoid foods that are high in vitamin K," indicates an understanding of the medication. Warfarin is an anticoagulant medication that works by inhibiting vitamin K-dependent clotting factors. Consistent intake of vitamin K-containing foods helps maintain a stable INR (International Normalized Ratio) and warfarin's effectiveness. Clients on warfarin should be educated about avoiding drastic changes in their vitamin K intake.

Choice B rationale:

Taking warfarin with food or on an empty stomach doesn't significantly impact its efficacy. Therefore, this statement is not indicative of the client's understanding of the medication.

Choice C rationale:

The statement "I should report any unusual bleeding or bruising to my provider" is important but doesn't specifically reflect an understanding of warfarin. It's a general caution for anyone taking anticoagulants.

Choice D rationale:

While it's important to avoid excessive use of medications like aspirin that can increase the risk of bleeding, this statement doesn't directly demonstrate an understanding of warfarin itself.

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