Postoperative PCA dosing for patients in normal health, AGE < 60yr; (@LIB.HLX^refmorphine[Ref)
Lean B.Wt Morphine Morphine Lockout Morphine (mg/hr)
(kg) Load Dose (mg) PCA (mg) Interval(min) Cont. Infusion
30 1.5 0.6 10 0.5
40 2.0 0.8 10 0.6
50 2.5 1.0 10 0.8
60 3.0 1.2 10 0.9
70 3.5 1.4 10 1.1
80 4.0 1.6 10 1.2
90 4.5 1.8 10 1.4
100 5.0 2.0 10 1.5
I) Note: Must Reduce Dose or Increase Lockout Interval and Eliminate
Continuous Infusion for Patients having any of the following
Conditions;
A) Greater than 60yrs old;
B) Morbid Obesity
C) Pulmonary Impairment
D) Hepatic Impairment
E) Renal Impairment
II) Usual Lockout Range is 6 to 20 minutes
III) Meperidine Cannot be used as a Continuous Infusion
IV) An optional Four Hr Dose Limit (usually 15-30mg) may be added to the PCA prescription