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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 ["0.5"]

Explanation

Here's how to calculate the volume the nurse should administer after reconstituting the medication:

1. Reconstitution and Concentration:

The medication label states adding 2.5 mL of normal saline will make a solution with a concentration of 1 gram per mL. This means after reconstituting, each 1 mL of the solution will contain 1 gram of medication.

2. Dose conversion:

The client's prescription is for 500 mg. We need to convert it to grams since the concentration is in grams per mL.

Conversion: 1 gram (g) = 1000 milligrams (mg)

Prescribed dose (g) = 500 mg / 1000 mg/g

Prescribed dose (g) = 0.5 g (round to nearest tenth)

3. Calculate the volume to administer:

We know the concentration after reconstitution (1 gram/mL) and the desired dose in grams (0.5 g).

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

Volume to administer (mL) = 0.5 g / 1 g/mL

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

Therefore, the nurse should administer approximately 0.5 mL of the reconstituted medication to the client.

Correct Answer is ["4.7"]

Explanation

Here's how to calculate the volume (mL) of the reconstituted ampicillin solution the nurse should administer for each dose:

1. We know the following:

Prescribed dose: 140 mg ampicillin (given)

Vial information:

Contains 250 mg ampicillin powder (given)

Reconstituted with 8.3 mL sterile normal saline (given)

Yields a final concentration of 30 mg/mL (given)

2. We need to find the volume (mL) of the reconstituted solution containing the prescribed dose (140 mg) considering the final concentration (30 mg/mL).

Steps:

a. Don't consider the initial volume (8.3 mL) of sterile normal saline. The final concentration (30 mg/mL) refers to the concentration in the diluted solution after adding the saline.

b. Use the following formula:

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

c. Plug in the values:

Volume to administer (mL) = 140 mg / 30 mg/mL

Volume to administer (mL) = 4.67 mL (round to nearest tenth)

Therefore, the nurse should administer approximately 4.7 mL of the reconstituted ampicillin solution intravenously every 8 hours for the child.

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