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Heparin protocol is prescribed for a client weighing 90 kg. Per protocol, the heparin loading dose is 60 units/kg IV rounded to the nearest 100 units, with a maximum loading dose of 4,000 units. The heparin vial is labeled 5,000 units/ml. How many ml should the nurse administer? (Enter the numeric value only. If rounding is required, round to the nearest tenth.)
Answer and Explanation

The Correct Answer is ["0.8"]

First, calculate the loading dose:

Loading dose = 60 units/kg x 90 kg = 5400 units

Since the maximum loading dose is 4,000 units, the nurse should administer 4,000 units.

Next, calculate the volume to administer:

Volume = Desired Dose (units) / Concentration (units/mL)

Volume = 4,000 units / 5,000 units/mL

Volume = 0.8 mL

Therefore, the nurse should administer 0.8 mL of heparin.


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Related Questions

Correct Answer is ["22"]

Explanation

Calculating the Propofol Infusion Rate

Step 1: Convert weight to kilograms:

198 lbs x (1 kg / 2.20462 lbs) ≈ 90 kg

Step 2: Calculate the desired dose rate in mcg/minute:

8 mcg/kg/minute x 90 kg = 720 mcg/minute

Step 3: Calculate the concentration of propofol in the IV solution:

100 mg/50 mL = 2 mg/mL

Step 4: Calculate the infusion rate in mL/hour:

First, convert mcg to mg:

720 mcg x (1 mg / 1000 mcg) = 0.72 mg/minute

Then, set up a proportion:

x mL/hour / 0.72 mg/minute = 60 minutes/hour / 2 mg/mL

Cross-multiply and solve for x:

x mL/hour = 0.72 mg/minute x 60 minutes/hour / 2 mg/mL

x mL/hour ≈ 21.6 mL/hour

Therefore, the nurse should program the infusion pump to deliver approximately 22 mL/hour.

Correct Answer is ["2"]

Explanation

To calculate the number of tablets needed, we'll set up a proportion:

x tablets / 37.5 mg = 1 tablet / 25 mg

Cross-multiplying:

25x = 37.5

Solving for x:

x = 37.5 / 25

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 atenolol.

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