You work as a home health aide and your elderly patient requires 4 mg/day of Cou

Question

You work as a home health aide and your elderly patient requires 4 mg/day of Coumadin, a blood thinner. Her prescription bottle contains 1mg tablets of Coumadin, and there are 500 tablets in the bottle. How long will her Coumadin tablets last? Your patient has been prescribed an antibiotic at the dosage of 0.2 mg/10 g of mass. Your patient weight is 43 kg. The antibiotic solution concentration is 250 mg/ml. What volume of liquid medicine will you give your patient? A client is ordered 75 milligrams of Neupogen intravenously. 250 milligrams in 10 milliliters of liquid for IV Injection is available. How many milliliters will you administer? A client is ordered 50 milligrams of Amitriptyline twice a day. 25 milligram tablets are available. How many tablets will you give per week?

Explanation / Answer

A. 4mg/ day coumadin has to be given to patient, but the tablet is 1 mg, so 4 tablets will be given per day. Now the bottle has 500 tablets, so it will last 500/4 = 125 days.

B. 0.2mg per 10g of mass is the dosage prescribed. Weight of the patient is 43 kg or 43000g, so he will require (43000 × 0.2) / 10 = 860 mg. Now the antibiotic concentration is 250mg / ml so volume given to the patient will be 860/ 250= 3.44ml.

C. Dose is 75mg of neupogen. 250mg in 10ml is available. Volume administered will be (75 × 10) / 250 = 3 ml

D. Dose is 50 mg of amitriptyline twice a day. So 100 mg of dose per day has to be given. That means 100/ 25 = 4 tablets per day.

Number of tablets per week = 4 × 7 = 28 tablets.

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