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A client with chronic constipation reports taking 2 ounces of magnesium hydroxide at bedtime. The bottle is labeled "Magnesium hydroxide saline laxative, USP 400 mg per 5 mL. How many mL should the nurse document in the medical record? (Enter numerical value only.)
Answer and Explanation

The Correct Answer is ["59.147"]

Here's how to calculate the number of mL the nurse should document:

Client dosage: 2 ounces (given)

Conversion factor: 1 ounce (oz) = 29.5735 mL (conversion factor)

Magnesium hydroxide concentration: 400 mg per 5 mL (from bottle label)

We need to find the equivalent volume in mL of the 2 ounces dosage the client reported.

Steps:

a. Convert ounces to mL:

Client dosage (mL) = Client dosage (oz) x Conversion factor (mL/oz)

Client dosage (mL) = 2 oz * 29.5735 mL/oz

Client dosage (mL) = 59.147 mL (round to nearest hundredth)


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Related Questions

Correct Answer is ["0.5"]

Explanation

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

1. Client weight conversion:

Client weight: 132 pounds

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

Conversion factor: 1 kg = 2.205 lbs

Client weight (kg): 132 pounds / 2.205 lbs/kg = 60 kg (round to nearest whole number)

2. Filgrastim dosage:

Prescribed dose: 5 mcg/kg/day (given)

3. Daily filgrastim amount:

Daily dose (mcg) = Dose (mcg/kg/day) x Client weight (kg)

Daily dose (mcg) = 5 mcg/kg/day * 60 kg

Daily dose (mcg) = 300 mcg (round to nearest whole number)

4. Filgrastim vial concentration:

The medication is available in 480 mcg/0.8 mL. This indicates the concentration of filgrastim in the vial is 480 mcg per 0.8 mL.

5. We need to find the volume (mL) to administer that provides the daily dose (300 mcg) based on the medication concentration (480 mcg/0.8 mL).

Volume to administer (mL) = Daily dose (mcg) / Concentration (mcg/mL)

Volume to administer (mL) = 300 mcg / (480 mcg/0.8 mL)

To perform the division accurately, we need the concentration in the same units (mcg/mL) for both the numerator and denominator.

We can achieve this by multiplying the vial concentration (480 mcg/0.8 mL) by a factor that converts the denominator (0.8 mL) to 1 mL.

Factor = 1 mL / 0.8 mL = 1.25 (since 1.25 x 0.8 mL = 1 mL)

Apply the factor to adjust the concentration in the denominator:

Adjusted concentration = 480 mcg/0.8 mL * 1.25 = 600 mcg/mL

Now, calculate the volume to administer:

Volume to administer (mL) = 300 mcg / (600 mcg/mL)

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

Therefore, the nurse should administer approximately 0.5 mL of filgrastim subcutaneously.

Correct Answer is ["1.5"]

Explanation

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:

75mcg/ xtablet ​= 50mcg/1tablet ​

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

Cross-multiplying and solving for x:

X = 75mcg×1tablet​/50mcg

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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