Dosage Calculation Practice Guide for Nursing Students

FOR NURSING
STUDENTS

, QUESTION 1
The HCP orders heparin 15,000 units SUBQ every 12 hours.
The medication is supplied in 10,000 units/mL.
How many mL should be administered per dose?




STEP 1 FORMULAS USED

Ratio proportion : Universal/basic/formula:

units (availabl
e) units (ordered) D
x V= A
1 mL (volume
) = x mL/dose H



SHOW YOUR WORK


Ratio proportion: Universal/basic/formula:

10,000 units 15 ,000 units 15 ,000 units
= x 1 mL
1 mL x mL 10,000 units

10 ,000 x = 15,000 = 1.5 mL/dose

10,000 x 15,000
10,000 10,000

10,000 x 15,000
10,000 10,000

x = 1.5 mL/dose




1.5 mL/dose