Answer:
6 tablets
Step-by-step explanation:
Given:
Prescribed units of penicillin G potassium daily for 1 week = 2.5 million units
1 unit of penicilin G potassium = 0.6 mcg = 0.6 × 0.001 mg = 0.0006 mg
Thus,
2.5 million units of penicillin G potassium will be = 2.5 million × 0.0006
or
= 2.5 × 10⁶ × 0.0006
= 1500 mg
Also, Weight of each tablet = 250 mg
Thus, number of tablets required for 1500 mg = [tex]\frac{1500}{250}[/tex]
or
= 6 tablets.
The number of tablets containing 250 mg, that will provide the prescribed dosage regimen is 6 tablets
Since the physician prescribes 2.5 million units of penicillin G potassium daily for 1 week. If 1 unit of penicilin G potassium equals 0.6 mcg, we need to find how many tablets, each containing 250 mg, will provide the prescribed dosage regimen.
So, since 1 unit = 0.6 mcg
= 0.6 × 1 mcg
= 0.6 × 10⁻³ mg
2.5 million units = 2.5 × 10⁶ × 1 unit
= 2.5 × 10⁶ × 0.6 × 10⁻³ mg
= 1.5 × 10³ mg
= 1500 mg
So, we need to find the number of 250 mg tablets in 1500 mg.
Since 250 mg = 1 tablet
1500 mg = 1500 mg × 1 tablet/250 mg
= 6 tablets
So, the number of tablets containing 250 mg, that will provide the prescribed dosage regimen is 6 tablets
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