Question

10. Order. Diphenhydramine 50 mg, PO, 96h Available: Diphenhydramine 12.5 mg/5 ml How many milliliters of diphenhydramine will you give per dose? 50ma I x 5ML = 20ML 12.5mg 11. Medication order: Lidocaine 8 mg in 250 mL, infuse at 10 mcg/min How many ml per hour do you need to infuse to deliver 10 mcg/min? (Round to the nearest hundredth.) 12. A vial of penicillin powder is reconstituted to yield 1,000,000 units/5 ml. If a patient has an order for 500.000 units of penicillin IM, how many mL of the medication should be administered? 1000000 SML 500,000 .=25nL 200,000 = 200,000 و محل Insulin

Answer 1

10. OrderedDiphenhydramine= 50 mg po q6h means every 6 hours, orally

Available Diphenhydramine= 12.5mg/5 ml

Means 2.5 mg/ml

Required ml per dose= 50/2.5 ml= 20 ml

11.Ordered Lidocaine= 8 mg in 250 ml

1mg = 1000 mcg

8 mg= 8000 mcg

Hence 8000 mcg in 250 ml

Means 32 mcg/ml

Infuse at 10mcg/min

Flow rate in ml/hr=?

Flow rate in ml/min= (10 mcg/min) X 32mcg/ml

= 0.3125 ml/min

= 18.72 ml/hr

12. Patient's order of Penicillin IM= 500,000 IM

Available= 1,0000,000 units/5ml

=200,000 units/ml

Hence for the required dose the ml will be= 500,000/ 200,000 ml

=2.5 ml