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The healthcare provider orders dobutamine at 12 mcg/kg/min. The client weighs 75 kg. The pharmacy provides 250 mL of D5W with 1 g of dobutamine. How many mL/hr should the IV pump be programmed for? (Round to a whole number.)

140

134

Answer and Explanation

The Correct Answer is C

A. This is an underestimation due to a miscalculation of the dose rate.

B. This is an overestimation due to a miscalculation of the dose rate.

C. 1. Calculate the desired dose of dobutamine:

Desired dose (mcg/min) = Dose per kg (mcg/kg/min) x Weight (kg)

Desired dose (mcg/min) = 12 mcg/kg/min x 75 kg = 900 mcg/min

2. Convert mcg/min to mg/hr:

900 mcg/min x 60 min/hr = 54,000 mcg/hr

54,000 mcg/hr ÷ 1000 mcg/mg = 54 mg/hr

3. Calculate the concentration of dobutamine in the solution:

Concentration (mg/mL) = Total amount of dobutamine (mg) / Total volume (mL)

Concentration (mg/mL) = 1000 mg (1 g) / 250 mL = 4 mg/mL

4. Calculate the infusion rate (mL/hr):

Infusion rate (mL/hr) = Desired dose (mg/hr) / Concentration (mg/mL)

Infusion rate (mL/hr) = 54 mg/hr / 4 mg/mL = 13.5 mL/hr

5. Round to the nearest whole number:

Infusion rate (mL/hr) = 14 mL/hr

Therefore, the IV pump should be programmed for 14 mL/hr.

D. This is an overestimation due to a miscalculation of the dose rate.

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Correct Answer is B

Explanation

A. Finasteride does not need to be taken on an empty stomach.

B. Finasteride can cause harm to a developing male fetus, and pregnant women should avoid handling it to prevent potential absorption through the skin.

C. Finasteride is an oral medication and is not administered as an intramuscular injection.

D. Hair loss is not a common adverse effect of finasteride; in fact, it is used to treat hair loss in men with benign prostatic hyperplasia.

A. Assess oral temperature. B. Place on cardiac monitor. C. Check a potassium level. D. Assess for pain at contact points.

Correct Answer is B

Explanation

A. Assessing oral temperature is not a priority immediately after an electrical burn, as the focus should be on monitoring for cardiac issues and other life-threatening conditions.

B. Electrical burns can cause cardiac arrhythmias, including dysrhythmias like ventricular fibrillation, which can be life-threatening. The nurse should place the client on a cardiac monitor immediately to detect any abnormal rhythms and respond accordingly.

C. While checking potassium levels is important for assessing potential complications such as kidney damage or arrhythmias, cardiac monitoring should take precedence.

D. Assessing for pain at contact points is important, but it is secondary to ensuring cardiac stability in an electrical burn victim.

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The healthcare provider orders dobutamine at 12 mcg/kg/min. The client weighs 75 kg. The pharmacy provides 250 mL of D5W with 1 g of dobutamine. How many mL/hr should the IV pump be programmed for? (Round to a whole number.)

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