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A client who weighs 65 kg is receiving an infusion of Dextrose 5% in Water (DW) 250 ml with dopamine 400 mg at 12 ml/hour. How many mcg/kg/minute is the client receiving? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

Answer and Explanation

The Correct Answer is ["4.9"]

Step 1: Calculate the concentration of dopamine in the IV solution:

400 mg / 250 mL = 1.6 mg/mL

Step 2: Calculate the infusion rate in mL/minute:

12 mL/hour x (1 hour / 60 minutes) = 0.2 mL/minute

Step 3: Calculate the dopamine infusion rate in mg/minute:

0.2 mL/minute x 1.6 mg/mL = 0.32 mg/minute

Step 4: Convert milligrams to micro-grams:

0.32 mg x (1000 mcg / 1 mg) = 320 mcg/minute

Step 5: Calculate the dopamine infusion rate in mcg/kg/minute:

320 mcg/minute / 65 kg ≈ 4.9 mcg/kg/minute

Therefore, the client is receiving approximately 4.9 mcg/kg/minute of dopamine.

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Correct Answer is C

Explanation

To determine the number of tablets needed, we can set up a proportion:

x tablets / 7.5 mg = 1 tablet / 5 mg

Cross-multiplying:

5x = 7.5

Solving for x:

x = 7.5 / 5

x = 1.5

Since we cannot administer a fraction of a tablet, we round up to the nearest whole number.

Therefore, the nurse should administer 2 tablets of metolazone.

Correct Answer is ["140"]

Explanation

Understanding the Problem:

We need to prepare a 280 ml tube feeding of Ensure that's 50% strength.

Full-strength Ensure comes in 240 ml cans.

Solution:

Determine the volume of Ensure needed:

Since we want a 50% solution, we need to dilute the full-strength Ensure by half.

So, we need 280 ml / 2 = 140 ml of full-strength Ensure.

Therefore, the nurse should use 140 ml of Ensure to prepare the feeding.

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A client who weighs 65 kg is receiving an infusion of Dextrose 5% in Water (DW) 250 ml with dopamine 400 mg at 12 ml/hour. How many mcg/kg/minute is the client receiving? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The health-care provider prescribes the diuretic metolazone (Zaroxolyn) 7.5 mg PO. Zaroxolyn is available in 5 mg tablets. How many tablets should the nurse plan to administer?

Correct Answer is C

Explanation

By The nurse is preparing a tube feeding of Ensure 280 ml (50% solution). Full strength Ensure is available in a 240 ml can. The nurse should use how many ml of Ensure to prepare the feeding? (Enter numeric value for only. If rounding is required, round to nearest whole number.)

Correct Answer is ["140"]

Explanation

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A client who weighs 65 kg is receiving an infusion of Dextrose 5% in Water (DW) 250 ml with dopamine 400 mg at 12 ml/hour. How many mcg/kg/minute is the client receiving? (Enter numeric value only. If rounding is required, round to the nearest tenth.)