8. The patient weighs 100 lb and must receive 15 mg/kg of a drug PO b.i.d....

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8. The patient weighs 100 lb and must receive 15 mg/kg of a drug PO b.i.d. If the strength of the drug is 30 mg/mL, how many

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Answer 1

Answer #1

ANSWER.

8) Calculation of volume(ml) of drug required.

Formula

Volume(ml) = Desired dose/Dose in hand * Quantity.

Here

Ordered dose = 15 mg/kg.

Weight of the patient = 100 lb.

Convert lbs to kg for calculation

1 lbs = 0.454 kg.

Weight of the patient in kg = 100 * 0.454

= 45.4 kg.

Desired dose(D) for this patient = 15 * 45.4

= 681 mg.

Dose in hand(H) = 30 mg.

Quantity (Q) = 1 ml.

As per above formula

Volume(ml) = D/H * Q

= 681 / 30 * 1

= 22.7 * 1

= 22.7 ml ( PO b.i.d.)

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Answer 2

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