Question

You want to give a 22 pound cat a 5 mg/kg dose of a drug. The drug comes as a 2.5% solution. How many milliliters should you give the cat?

A. 20
B 0.2
C. 8.8
D. 4.4
E. 0.4
F 2

Answer 1

A) 20ml

Explanation:

You have a 2.5% solution (in 100 of the solution you have 2.5 of solvent), then if the dose that is being supplied to the cat is 5mg / kg it means:

if 1000 gr is equivalent to 100%

5 gr is equivalent to X;

X= (100%*5gr)/1000gr → X= 0.5%, , Therefore the amount of milliliters that should be supplied of 2.5% is:

if 100ml hava a concentration of 2.5, how many mililiters are necesary in a concentration 0.5

X=(0.5%*100ml)/2.5% → X=20ml