Question

A 5 lb cat needs 12mg/kg thiopental. How much 2.5% thiopental will you need to draw up? A. 10.8 mL B. 1.08 mL C. 108 mL D. 18 mL

Answer 1

Answer:

The 2.5% thiopental need to draw up is B. 1.08mL.

Step-by-step explanation:

First we have to know how much thiopental needs the cat, for this we have multiply the concentration (12 mg/kg) by the weight of the cat in kg, this is:

$5lb*\frac{0.454kg}{1lb} =2.27kg$

Now we can calculate how much thiopental the cat needs for its weight:

$\frac{12mg}{kg} *2.27kg=27.24mg$

Having this and the concentration of the medicament we can calculate the volume that it is needed to be supplied to the cat:

$2.5perc=\frac{2.5g}{100mL}=\frac{2,500mg}{100mL}$

$27.24/\frac{2,500mg}{100mL}=1.0896mL$

The 2.5% thiopental need to draw up is B. 1.08mL.

Answer 2

B. 1.08mL

1 lb = 2.2 kg

5 lb = 2.27 kg

2.27kg   ×  12mg   = 27.24 mg

Divide 27.42 mg by 2.5    = 10.896mg

Now change the mg to mL

10.896   ÷ 10  = 1.0896