Calculation Exam Prep (Latest
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Grade A - Nightingale
Question:
A healthcare provider orders 180 mg of a medication by mouth. Available are
60 mg capsules. Give __ capsules.
Answer:
3
1. Use the dimensional analysis formula.
X = V (vehicle)/H (on hand) × C(H)/C(D) × D/1
2. Plug in the known values and calculate.
X = 1 capsule/60 mg × 180 mg/1
X= 3 capsules
, Question:
A physician orders 125 mcg of a medication by mouth. Available are 0.25 mg
tablets. Give __ tablet/s (to the nearest tenth).
Answer:
0.5
1. Use the dimensional analysis formula.
X = V (vehicle)/H (on hand) × C(H)/C(D) × D/1
2. Plug in the known values and calculate. Include a conversion factor to
convert micrograms to milligrams (1,000 mcg = 1 mg).
X= 1 tablet/0.25 mg× 1 mg/1,000 mcg × 125 mcg/1
X= 125 tablet/250
X=0.5 tablet