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 Administer Dopamine at 10 mcg/kg/min. The pharmacy provides dopamine 800 mg in 250 mL of D5W. Your client weights 85.3 kg. How many mL/hr are you to set the infusion pump? (Round answer to nearest whole number)
Answer and Explanation

The Correct Answer is ["16"]

Step 1: Determine client’s dose in mcg/min

10 mcg/kg/min×85.3 kg=853 mcg/min

Step 2: Convert mcg/min to mg/hr

  • 853 mcg/min=0.853 mg/min

  • Per hour:

0.853 mg/min×60 min/hr=51.18 mg/hr

Step 3: Determine concentration of dopamine solution

  • 800 mg in 250 mL → 800 mg250 mL=3.2 mg/mL

Step 4: Calculate infusion rate in mL/hr

51.18 mg/hr3.2 mg/mL=15.99 mL/hr

Step 5: Round to nearest whole number

≈16 mL/hr


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Related Questions

Correct Answer is C

Explanation

A. Plasmapheresis is not a surgical procedure, nor does it involve the transplantation of plasma.
B. Plasmapheresis is not used for replacing clotting factors; it is primarily for removing harmful substances from the plasma.
C. Plasmapheresis is a procedure that removes antibodies from the blood that may be attacking the nerves, thereby reducing the autoimmune response in Guillain-Barré syndrome.
D. Plasmapheresis does not involve the removal of red blood cells; it focuses on the plasma component of the blood.

Correct Answer is ["18"]

Explanation

To calculate the IV pump setting, first convert the patient's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The patient weighs 195 pounds, which is approximately 88.64 kilograms (195 / 2.2). Next, calculate the total units of Heparin needed per hour by multiplying the patient's weight in kilograms by the dosage ordered: 20 units/kg/hr. So, 88.64 kg * 20 units/kg/hr equals 1,772.8 units/hr. Now, determine how many milliliters per hour this dosage requires. Since the premixed bag contains 25,000 units in 250 ml, there are 100 units per ml (25,000 units / 250 ml). Finally, divide the total units needed per hour by the concentration to find the volume needed per hour: 1,772.8 units/hr / 100 units/ml equals 17.728 ml/hr. Rounded to the nearest whole number, the IV pump should be set to 18 ml/hr.

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