Answer:
30 mL of Medication G PO q12h
Explanation:
In order to solve for the amount to administer, the ordered dose must be multiplied by the dosage strength.
The ordered dose is the amount of medication prescribed by a provider.
The dosage strength is the available concentration of medication in stock usually provided by the pharmacy, which is typically expressed as a proportion.
The following formula reflects how to solve such calculations:
ordered dose × dosage strength = dose to administer
The ordered dose in this case is 0.6 grams (g) and the dosage strength is 100 mg per 5 mL, or 100 mg/5 mL.
The first step is to change the ordered dose from grams to milligrams (mg) to match the dosage strength. To do so, multiply the amount of grams by a conversion factor, a proportion of equivalency. There are 1000 milligrams in 1 gram, which can be represented as 1000mg/1 g.
0.6 g × (1000 mg / g)
Grams in both numerator and denominator cancel each other out, leaving mg as the remaining units.
0.6 (1000 mg) = 600 mg
Now, this can be implemented into the above formula.
600 mg × (5 mL / 100 mg)
mg in both numerator and denominator cancel each other out, leaving mL as the remaining units.
600 × (5 mL / 100)
= 600(5) / 100
= 3000 / 100
= 30 mL
The nurse should prepare 30 mL of Medication G.