the same. For a review of this conversion factor, refer to paragraph 1-40b in lesson 1,

section VI of this subcourse.

(2) Find the number of milliliters of Demerol injection (50 mg/ml) needed

as a daily dose:

50 mg = 90 mg

1 ml

Xml

50 X = 90

X

= 90

50

X = 1.8 ml every 24 hours.

(3)

Find the number of milliliters to be administered every six hours:

1.8 ml

= X ml

24 hours 6 hours

24 X = 10.8

X

=

108 24

X = 0.45 ml of Demerol injection to administered every six hours

In calculating problems involving the label strength, the label strength should be

the first ratio of the proportion.

Example Problems:

a. If U-100 Insulin contains 100 units of insulin in each milliliter of suspension,

how many milliliters must be administered to give a patient 60 units?

100 units

=

60 units

1 ml

X ml

100 X

=

60

X

=

0.6 ml

MD0802

3-4

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