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The healthcare provider prescribes 0.075 mg of levothyroxine PO daily. The medication is labeled, "50 mcg tablets." How many tablets should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
Answer and Explanation

The Correct Answer is ["1.5"]

First, we need to convert the prescribed dose from mg to mcg because the available medication is labeled in mcg.

1 mg is equal to 1,000 mcg. So, 0.075 mg is equal to 75 mcg.

Given:

The prescription is for 75 mcg of levothyroxine.

The available medication is 50 mcg/tablet.

We can set up the proportion as follows:

75 mcg/ x tablet  ​= 50 mcg/1 tablet ​

Solving for x gives us the number of tablets that the nurse should administer.

Cross-multiplying and solving for x:

X = 75 mcg×1 tablet​/50 mcg

After performing the calculation, we find that x equals 1.5 tablets.

So, the nurse should administer 1.5 tablets of the medication. This is rounded to the nearest tenth as per the instructions.


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Related Questions

Correct Answer is ["100"]

Explanation

Here's how to calculate the infusion rate (mL/hour) for the nurse to administer cefazolin:

We know:

Total volume of solution: 50 mL (given)

Dose of cefazolin: 1 gram (given) = 1000 milligrams (since 1 gram = 1000 milligrams)

Infusion duration: 30 minutes (given) = 0.5 hours (convert minutes to hours by dividing by 60)

We need to find:

Infusion rate (mL/hour)

Calculation:

Calculate the concentration of cefazolin in the solution (not required, but helpful to understand):

We aren't directly given the concentration, but we can see that 1 gram of cefazolin is delivered in 50 mL. Therefore, the concentration is:

Concentration = Dose (mg) / Volume (mL)

Concentration = 1000 mg / 50 mL

Concentration = 20 mg/mL

Calculate the infusion rate based on the total volume and duration:

Infusion rate (mL/hour) = Total volume (mL) / Infusion time (hours)

Infusion rate (mL/hour) = 50 mL / 0.5 hours

Infusion rate (mL/hour) = 100 mL/hour

Since we typically round infusion rates to whole numbers for ease of use with infusion pumps, the nurse should program the pump to deliver 100 mL/hour.

Correct Answer is ["0.29"]

Explanation

Here's how to calculate the volume (mL) of epoetin alfa the nurse should administer:

1. Client weight conversion:

Client weight: 126 pounds

Medication dosage is based on weight per kilogram (kg).

We need to convert the weight to kg for accurate calculation.

Conversion factor: 1 kg = 2.205 lbs

Client weight (kg) = 126 pounds / 2.205 lbs/kg

Client weight (kg) = 57.14 kg (round to nearest hundredth)

2. Epoetin alfa dosage:

Prescribed dose: 50 units/kg (given)

3. Epoetin alfa concentration:

Vial label: 10,000 Units/mL

4. We need to find the volume (mL) to administer that provides the prescribed dose (50 units/kg) based on the client's weight (57.14 kg) and the medication concentration (10,000 Units/mL).

Calculation:

Total epoetin alfa dose (units): Dose (units/kg) x Client weight (kg)

Total epoetin alfa dose (units): 50 units/kg * 57.14 kg

Total epoetin alfa dose (units): 2857 units (round to nearest whole number)

Volume to administer (mL): Total dose (units) / Concentration (units/mL)

Volume to administer (mL): 2857 units / 10,000 Units/mL

Volume to administer (mL): 0.2857 mL (round to nearest hundredth as requested)

Therefore, the nurse should administer approximately 0.29 mL of epoetin alfa subcutaneously.

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