ATI TEAS (Test of Essential Academic Skills) Version 7MathematicsMedium
A patient is prescribed 0.5 grams of a medication. The pharmacy dispenses tablets containing 250 milligrams each. How many tablets should the nurse administer?
- A1 tablet
- B0.5 tablet
- C2 tablets
- D5 tablets
Show answer & explanationAnswer & explanation
Correct answer: C. 2 tablets
First, convert grams to milligrams: 0.5 grams * 1000 mg/gram = 500 mg. Then, divide the total desired dose by the dose per tablet: 500 mg / 250 mg/tablet = 2 tablets.
Why the other options are wrong
- A. This is incorrect; it would be 250 mg.
- B. This is incorrect; it would be 125 mg.
- D. This is incorrect; it would be 1250 mg.
Unit Conversion (Mass)
The process of changing a measurement from one unit of mass to another (e.g., grams to milligrams).
- 1 gram (g) = 1000 milligrams (mg).
- 1 kilogram (kg) = 1000 grams (g).
- Essential for accurate dosage calculations in healthcare.
Memory trick: Kilo to milli: King Henry Died by Drinking Chocolate Milk (K, H, D, base, d, c, m).