Use the ratio and proportion method to calculate the amount to prepare for each of the following questions.

Question

1. Prescription: 600 000 units
Stock dosage: 400 000 units/mL
How many mL should be given in one dose?

2. Order: 0.2 g of a drug.
Stock dosage: 100mg/tablet
How many tablets should be given in one dose?

I want to check the way I answered the questions. The book says the answers are:

1. 1.5mL
2. 2 tablets

Answer 1

1. Volume given in one dose=prescription/stock dosag =(600000/400000) mL =1.5 mL 2.Number of tablets =( mass of drug )/ stock dosage =0.2g /100 mg = 0.2g/100*10^(-3)g =(0.2*1000)/100 =2 tablets