Question

please help me solve these two problems

5 The order reads Ceclor 0.5 gm by mouth every 8 hours. The available dose is 250mg per 5 ml. How many mL will you administer to this patient per dose? 16) Order reads Depo-Provera 0.2gm IM at bedtime once a week on Thursday. The available dose is Depo-Provera 400 mg/ml. How many mL will you administer to this patient per dose?

Answer 1

15.

ordered dose of ceclor= 0.5 gm every 8 hours,

so, 3 times a day (24 hours/ 8 hours= 3 times)

dose in hand= 250 mg in 5 ml ( mg to gram - divided by 1000)

ie, 250 mg/1000 = 0.25 gm , 0.25 gm in 5 ml

using proportion method

for 0.25 gm in 5 ml , so 0.5 gm in X ml

therefore, 0.25 gm/5 ml= 0.5 gm/ X ml

0.25 X = 0.5* 5

X=( 0.5* 5)/ 0.25=2.5/ 0.25=10

so, X = 10 ml

for administering 0.5 gm 10 ml is needed per dose

16,

ordered dose of depo-provera= 0.2 gm

available dose= 400 mg/ ml( mg to gm= divided by 1000)

ie, 400 mg/ml= 0.4 gm/ml= 0.4 gm in 1 ml

ordered dose of 0.2gm in ml= X

using proportion method

0.4 gm /1 ml= 0.2gm /X ml

0.4 X= 0.2

X= 0.2/0.4= 1/2= 0.5

so X = 0.5 ml

ordered dose of 0.2 gm in ml= 0.5 (0.2 gm =0.5 ml)