The healthcare provider prescribes an intravenous (IV) bolus of diltiazem 0.25 mg/kg for a client with atrial fibrillation. The client weighs 178 pounds. How many mg should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["20"]
1. Convert client weight to kilograms (kg):
Client weight (lbs) = 178
We know 1 kg = 2.2 lbs
Client weight (kg) = 178 lbs / 2.2 lbs/kg = 81.36 kg (rounded to two decimal places for accuracy)
2. Calculate the total diltiazem dosage:
Dosage per kg = 0.25 mg/kg
Client weight (kg) = 81.36 kg
Total dosage (mg) = Dosage per kg * Client weight (kg)
Total dosage (mg) = 0.25 mg/kg * 81.36 kg = 20.34 mg (rounded to two decimal places for accuracy)
3. Round the dosage to the nearest whole number for administration:
Total dosage (mg) = 20.34 mg (rounded to two decimal places)
In practice, medication dosages are typically rounded to the nearest whole number for safe and accurate administration. Therefore, the nurse should administer 20 mg of diltiazem.
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Related Questions
Correct Answer is ["0.25"]
Explanation
Here's why:
We are given the specific dose of somatropin to administer: 1.25 mg (given).
The volume to be administered depends solely on the prescribed dose and doesn't require the concentration for this case.
Therefore, the nurse should administer 0.25 mL of the reconstituted somatropin solution.
Calculation:
Volume to administer (mL) = Dose (mg) / Concentration (mg/mL)
However, we can rearrange the formula as long as we have the dose and target amount to administer:
Volume to administer (mL) = Dose (mg) / Desired dose (mg/mL)
In this case, the "Desired dose (mg/mL)" represents the concentration we want to administer, which is essentially the prescribed dose (1.25 mg) delivered in one injection.
Volume to administer (mL) = 1.25 mg / 1.25 mg/mL Notice how the concentration units cancel out
Volume to administer (mL) = 0.25 mL (round to nearest hundredth)
Therefore, the nurse should administer 0.25 mL of the reconstituted somatropin solution subcutaneously.
Correct Answer is ["15"]
Explanation
The total amount of liraglutide in the pen is 18 mg.
The prescribed dosage is 1.2 mg per dose.
Therefore, the number of doses available in each pen would be:
NumberofDoses = Totalamountinpen / Dosageperdose = 18mg / 1.2mg/dose = 15doses
So, the nurse should tell the client that there are 15 doses available in each liraglutide pen.
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