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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 ["A","B","E"]

Explanation

A. LDL of 160 mg/dL is elevated, which is a risk factor for atherosclerosis.

B. Total cholesterol of 280 mg/dL is above the recommended level, increasing the risk of atherosclerosis.

C. Serum albumin is within the normal range and does not indicate atherosclerosis risk.

D. HDL cholesterol at 50 mg/dL is considered within a normal protective range and is not indicative of atherosclerosis risk.

E. Triglycerides of 200 mg/dL are also elevated, contributing to the risk for atherosclerosis.

A. Encourage the client to sit up at the bedside in a chair and lean forward. B. Have the client rest in bed with the head elevated 15 to 20 degrees. C. Place the client in the Trendelenburg position with pillows behind the head. D. Ask the client to rest in bed in a high- Fowlers position with the knees flexed.

Correct Answer is A

Explanation

A. Sitting up and leaning forward helps improve lung expansion and ventilation, which is beneficial for clients with COPD.

B. Elevating the head is helpful but not as effective as sitting upright for COPD clients who need to improve their ventilation.

C. The Trendelenburg position is not appropriate for improving ventilation in COPD patients.

D. While high-Fowler's may help in some situations, having the knees flexed can restrict the diaphragm and limit breathing capacity.

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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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