Question

An order has been placed for 4 milligrams per kilogram of theophylline (Theo-Dur). Each capsule is labeled 300 milligrams. How many capsules of this bronchodilating drug will you prepare for a patient weighing 75 kilograms? Your patient must receive 1.4 milligrams per kilogram of the antihypertensive drug metoprolol tartrate (Lopressor). The drug is available in the form of 50 mg tablets. If your patient weighs 72 kilograms, how many tablets will you administer?

Answer 1

1.Patient weight=75 kilogram

Required drug= 4 milligrams per kilogram

So drug needed for this patient=

1 killogram= 4 miligram

75 kilogram=4×75=300 milligram is need for 75 kilogram patient

Each theophylkin capsule contain 300 mlligram.

So give 1 capsule for this patient

2.patient weight=72 kg

Required dose=1.4 mg per kg

So 72 kg patient need =72×1.4=100.8 mg

1 tablet=50 mg

So 2 tablet should be given to this patient