Medication Administration Refresher Course
This course is worth 1.0 CE upon completion of the test.
In an effort to maintain proficiency in medication administration
I have come up with this refresher course and exam for you to take
at your leisure. Please read the following information and then take the test to receive 1.0 CE.
FOR STARTERS
Formulas that might be beneficial:
Calculating doses and administration rates
Micrograms/kilograms/minute:
mL/hr =
mcg ordered X kg X 60 mcg/mL
mcg/kg/min =
mcg/mL X mL/hr-60-kg
Micrograms/minute:
mL/hr =
mcg ordered X 60 mcg/mL
mcg/min =
mcg/mL X mL/hr 60
Calculate an IV drip rate
X = IV bag volume X mg ordered X gtt set Drug in bag X 1 min. X 1mL
Example:
find the gtts/min
Ordered: 3 mg lidocaine/min IV drip
On Hand: 2 gm lidocaine/5 mL
Bag: 500mL D5W
X = 500 X 3mg X 60X = 45 gtts/min
2000 mg X 1 X 1
Find the Concentration
X = Solute (gms or mgs of drug) Solvent (ltr or mL of volume)
Example: 1 gm of lidocaine has been added to 250 mL of D5W
X = 1gm 250mL
X = 1000mg (converted to milligrams) 250mL
X = 4mg/mL
Amount of Solute
Percent of solution X volume of solution = number of grams
Example: How many grams of dextrose are in a 250mL bag of D5W?
5% dextrose in water = 5 grams of Dextrose in 100 mL.
X = 5% or 5gms X 250 100
X = 12.5g
5g : 100 mL : : (X)g : 250mL
MD orders 500mg of 10% solution CaCl. How many mLs do you give?
10 g/100 mL or 10 X 1000 = 10,000mg/100mL
10,000mg/100mL = 500mg/(X)mL
10,000X = 50,000
X = 5
MD orderes Isuprel infusion 2 mg/500mL D5W. What is the concestration per mL?
2mg
500
2mg : 500mL : : (X)mg : 1mL
2 : 500X
X = 0.004mg or 4 mcg/mL
Now that we have a renewed understanding of medication formulary, lets put it to good use.
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Emergency Medical Services - Continuing Education - Test
1.
You are transporting a male patient with diagnosis of inferior MI, to a tertiary care facility
En route your patient becomed hypotensive and is refractory to fluid boluses. You decide to
administer Dopamine at 7 mcg/kg/min infusion rate. Your patient weighs 220 lbs.
What is the rate?
2.
You are treating a patient with obvious closed forarm fracture. You decide to administer 4mg
morphine sulfate and 12.5 mg Phenergan. Your MS is supplied in 10mg/2mL and Phenergan is
supplied in 25 gm/2mL. What is the amount of mLs you would administer for each medication?
3.
Dopamine is bought at a clearance price. The amount of drug a 250 cc bag is 800 mg.
How does this compare to to our normal concentration of Dopamine?
4.
You are transporting a patient with an obvious femur fracture. En route, you choose to follow the pain protocol.
You decide to admimister 4 mg of Morphine Sulphate, however, you forgot to restock 1 cc syringes this a.m. during your
morning check-offs, and all you have is a 3 cc syringe. Our Morphine is supplied in 10mg/1mL.
How many mL's would you need to draw up to administer this amount?
5.
The above patient advises you that the last time she had Morphine, it made her sick at her stomach.
You decide to administer 12.5mg of Phenergan, which is supplied 25mg/1mL. Again, you have no 1 cc
syringes and youjust used your last 3 cc syringe. All you have now is a 5 cc syringe. How many cc's
will you have to use now to deliver this dosage?
6.
The M.D. orders 0.5 grams of of aminophylline to be placed in a 100mL bag of D5W for an IV piggyback.
What is the per mL concentration?
