Page 34 - Referance Guide For Pharmaceutical Calculations (Naplex, Fpgee and Ptce)

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c. 3 363. A prescription says a 50mcg/hr patch of
d. 25 Duragesic TDS is to be changed every 72 hours. If a
prescriber wants to switch this to Oxycodone, how
361. A prescription says to take 15mg of many 5mg tablets of Oxycodone are required to fill
Morphine po q4h. Below is a chart with the a 7-day supply? (Assume 18 hrs after removal of the
recommended initial Duragesic dose based upon transdermal fentanyl patch, approximately 5mg of
daily oral Morphine dose: oxycodone q12h can be substituted for each
25mcg/hr of transdermal fentanyl to start.)
Morphine Dose Duragesic Dose
(daily in mg) (mcg) a. 140
b. 120
45-134 25 c. 52
135-224 50 d. 28
225-314 75
315-404 100 364. A prescription says to take 30mg of
Morphine po q6h. Below is a chart with the
How many 25mcg/hr Duragesic patches are recommended initial Duragesic dose based upon
required to fill a 9-day supply? daily oral Morphine dose:

Morphine Dose Duragesic Dose
a. 3 (daily in mg) (mcg)
b. 9
c. 12 45-134 25
d. 10 135-224 50
225-314 75
362. A 65-year-old patient is taking 5mg of 315-404 100
Meperidine by mouth, six times day, to relieve pain
associated with lung transplantation. If a prescriber How many 25mcg/hr Duragesic patches are
wants to switch him over to Hydromorphone, how required to fill a 30-day supply?
many cc of 0.6mg/cc Hydromorphone suspension
are required to fill a 7-day supply? a. 5
b. 10
Oral Prior Multiplication Parenteral c. 15
Opioids Factor Prior d. 20
Opioids

Oxycodone 0.25 N/A
Codeine 0.04 N/A
Morphine 0.12 N/A
Meperidine 0.02 N/A
Hydromorphone 1.0 N/A

a. 1
b. 21
c. 14
d. 7

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