EMP 205
Pharmacology Review
Name:______Answer Key___________
1.) The physician asks you to initiate a lidocaine drip on a patient you just resuscitated from cardiac arrest. You have a vial that contains 1g/5cc of lidocaine and you draw up and inject all 5cc into the bag of fluid. The physician ordered the patient to receive 2.0 mg/min of lidocaine. You have a 250 ml bag of normal saline and a 60gtt/ml drip set.
a. What is your drip rate in gtt/min? (5 points)
Rate in gtt/min = (2.0 mg/mL)(250
mL)(60 gtt/mL) = 30
gtt/min
1000mg
b. What is your drip rate in ml/hr? (5 points)
Rate in mL/hr = (30 gtt/min) (60 min/hr) = 30 mL/hr
60 gtt/mL
Or remember that
gtt/min is equal to mL/hr if a 60 gtt/mL administration set is used!!!
c. What is the concentration of your newly prepared lidocaine drip in mg/ml? (3 points)
Concentration = AA Concentration = 1000mg = 4mg/mL
VOH 250 mL
d. What is the concentration of your newly prepared lidocaine drip in mg/ml? (2 points)
1,000,000 mcg = 4000mcg/mL
250 mL
2. You start an epinephrine drip at 2mg/min on a bradycardic adult patient. You have a 500 ml bag of normal saline and 2 mg of epinephrine to mix the drip with providing a 4mg/ml concentration?
a. Using a 60gtt/ml administration set, what is drip rate in gtt/min in which drip should be infused? (5 points)
Rate in gtt/min = (2mcg/min)(500mL)(60gtt/mL) = 30gtt/min
2000mcg
b. If you use a 10 gtt/ml administration set, what would be the new drip rate in gtt/min? (5 points)
Rate in gtt/min = (2mcg/min)(500mL)(10gtt/mL) = 5 gtt/min
2000mcg
3. You are ordered to administer a dopamine drip at 12mg/kg/min to an adult female that weighs 100 kg.
a. Using a 500 cc bag of normal saline in which you added 800 mg of dopamine and a 60 gtt/ml set, what is your infusion rate in gtt/min? (7 points)
Rate in gtt/min = (12mcg/kg/min)(100kg)(500
mL)(60gtt/mL) = 45gtt/mL
800
000 mcg
b. What is the concentration of your drip in mg/ml? (3 points)
Concentration = 800 000mcg = 1,600 mcg/mL
500 mL