Download More Dosage calculations 2

More Dosage calculations 2
1.
Morphine sulfate injection for intravenous use is available in a concentration of 8 mg / mL of
solution.
Calculate the number of mLs required to administer a dosage of 20 mg of morphine sulfate.
______________
2. Dosage ordered 50 mg of secobarbitol (elixir) The stock bottle contains 22 mg of secobarbitol in
5 ml solution. How many mL should patient received? ______________________
3. Insulin is usually administered in a syringe (U-50 or U-100) that corresponds to the
concentration of the insulin stock solution of 100U / mL (U-100). If an insulin syringe is not
available, a tuberculin syringe may be used. However unit dosage must be converted to mL
using the proportion method. What would be the dose in milliliters (mL) for an order of 20 U
(units) of insulin U-100?
_________________________
4. Pediatric Dosage: Dosage calculations in pediatrics is based on age, body surface area (BSA) and
body weight. BSA and body weight are the methods most frequently used to calculate pediatric
dosage.
Following are the formulas used for these calculations.
Clark’s rule: Weight of child divided by 150 lbs X (times) Adult dose = Child’s dose.
Fried’s rule Age in months divided by 150 X Adult dose = Child’s dose
Problem:
Katie has just turned 3 years old and weighs 30 pounds. Her mother wants to know how much
cough syrup to give Katie. The directions have worn off the bottle and she can only make out
the dosage for adults 2 teaspoons (10 mL) every 4 hours. How much should Katie received?
To receive:________________________
Which calculation method used to calculate dosage? Clark or Frieds? _________________
What will be used to administer the correct dosage?___________________(be specific)
5. There is a drug order for antibiotic amikacin 7.5 mg/Kg administered intravenously for a patient
weighing 110 pounds. Amikacin is available as 100 mg per 2mL vial. How many mg of drug is
required to fill the order and what is the volume of the drug given. How many vials of drug
would be required to accomplish dose?
mg =_______________ mL=______________ vials =______________