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Heparin 5,000 units IV is prescribed as a loading dose, to be administered over 5 minutes for a client with thrombophlebitis. The vial is labeled, "10,000 units/mL." How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
Answer and Explanation

The Correct Answer is ["0.5"]

Here's how to calculate the volume of heparin the nurse should administer:

1. Heparin dose: 5,000 units (given)

2. Heparin concentration: 10,000 units/mL (given on the vial label)

We need to find the volume (mL) containing the prescribed dose (5,000 units) of heparin.

Calculation:

Volume to administer (mL) = Dose (units) / Concentration (units/mL)

Volume to administer (mL) = 5,000 units / 10,000 units/mL

Volume to administer (mL) = 0.5 mL (round to nearest tenth as requested)

Therefore, the nurse should administer 0.5 mL of heparin.


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Related Questions

Correct Answer is ["42"]

Explanation

Here's how to calculate the infusion rate (gtt/min) for the nurse to regulate:

1. Volume of azithromycin solution:

Volume = 500 mL (given)

2. Infusion duration:

Duration = 2 hours (given)

3. IV administration set gtt/mL:

Rate (gtt/mL) = 10 gtt/mL (given)

4. We need to find the rate (gtt/min) at which the solution should infuse to deliver the total volume (500 mL) over the specified duration (2 hours).

Steps:

a. Convert infusion duration from hours to minutes:

Duration (minutes) = Duration (hours) x Minutes per hour

Duration (minutes) = 2 hours * 60 minutes/hour

Duration (minutes) = 120 minutes

b. Calculate the total number of drops to be infused:

Total drops = Volume (mL) x Rate (gtt/mL)

Total drops = 500 mL * 10 gtt/mL

Total drops = 5,000 drops

c. Calculate the infusion rate (gtt/min):

Infusion rate (gtt/min) = Total drops / Duration (minutes)

Infusion rate (gtt/min) = 5,000 drops / 120 minutes

Infusion rate (gtt/min) = 41.67 gtt/min (round to nearest whole number as requested)

Therefore, the nurse should regulate the infusion at approximately 42 gtt/min.

Correct Answer is ["0.64"]

Explanation

Here's the calculation to determine the volume to administer:

Prescribed dose: 40 mg methylprednisolone

Medication vial concentration: 125 mg per 2 mL (given on the vial label)

We need to find the volume (mL) containing the prescribed dose (40 mg) of methylprednisolone.

Calculation:

Volume to administer (mL) = Dose (mg) / Concentration (mg/mL)

Since the concentration is given in mg per 2 mL, we need to adjust it to mg/mL for accurate calculation:

Concentration (mg/mL) = Total mg / Volume (mL)

Concentration (mg/mL) = 125 mg / 2 mL

Concentration (mg/mL) = 62.5 mg/m

Now, with the concentration in mg/mL, we can calculate the volume to administer:

Volume to administer (mL) = 40 mg / 62.5 mg/mL

Volume to administer (mL) = 0.64 mL (round to nearest hundredth as requested)

Therefore, the nurse should administer 0.64 mL of methylprednisolone.

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