EMP 194
Pharmacology Worksheet #4
1.) You are asked to establish a lidocaine drip to an 80kg patient you just resuscitated. Your vial contains 2g of lidocaine per 10mL. You add all 10mL to a 500mL bag of 0.9% saline. You are ordered to administer 3.0mg/minute using a 60gtt/mL administration set.
a. What is the concentration of your newly prepared drip in mg/mL?
Concentration
= (2000mg) = 4mg/mL
500 mL
b. What is your drip rate in gtt/min?
Rate = (3mg/min)(500mL)(60gtt/mL) = 45gtt/min (You
could also describe the Clock Method to solve 2000mg
this problem.)
c. What is your concentration in mcg/min?
Concentration
(in mcg/mL) = (2,000,000mg) = 4000mcg/mL
500 mL
d. What is your drip rate in mL/hr?
Rate (in mL/hr) = (45gtt/min)(60min/hr) = 45mL/hr
60gtt/mL
2.) You are ordered to initiate a dopamine drip at 5mcg/kg/min to an adult who weighs 75 kg. You add 800mg of dopamine to a 1000mL bag of 0.9% saline. You use a 15gtt/mL administration set.
a. What is the concentration of your newly prepared drip in mcg/mL?
Concentration
= (800 000mcg) = 800mcg/mL
1000 mL
b. What is your drip rate in gtt/min?
Rate = (5mcg/kg/min)(1000mL)(75kg)(15gtt/mL) = 7.0gtt/min
800 000mcg
c. What is your drip rate in mL/hr?
Rate
(in mL/hr) = (7.0gtt/min)(60min/hr) = 28mL/hr
15gtt/mL