Pharmacology Math N 112 Challenge #2
1	Give: Procan SR 1 g po bid. Have: Procan SR 500 mg/tablet. How many will you give?
2	The doctor orders 2.5 L of 5%D/RL to infuse at 150 cc/hr. Determine the infusion time.
3	You need to administer Atropine 0.2 mg sc preoperatively. The label reads Atropine 400 mcg/ml. How much will you give?
4	The order reads Tagamet 200 mg IV stat. The pharmacy delivers Tagamet 200 mg diluted in 100 ml of 5%DW to infuse over 20 minutes. If you have microdrop tubing, how many drops/minute should the IV run?
5	Give Digoxin 100 mcg IM qd. If the vial reads 0.5mg/2ml, how much will you give? You have a vial marked 40 mg/ml. Give?
6	The doctor orders Lasix 20 mg IV stat for an infant weighing 22 lb. The recommended safe dose range is 1 mg/kg. Calculate whether the ordered dose is safe.
7	The doctor orders Erythromycin Ethylsuccinate 500 mg po today. The bottle reads: Dilute with 140 ml of water to equal 200 mg/5 ml. How many ml's will you give?
ANSWER KEY
1	2 tablets
2	16.66 hours or 16.7 hours or 16 hours and 42 minutes
3	0.5 ml
4	300 gtt/min
5	0.4ml
6	Safe dose range is 10 mg for this client. Ordered dose is 20 mg, which would be unsafe. Notify the physician before administering any Lasix.
7	12.5 ml
rjj/07
Return to Regina Janoski's Home Page