The role of pharmacokinetics in anaesthesia: application to intravenous infusions.

Abstract:

:Pharmacokinetic concepts describe the relationship between drug dose and resulting plasma concentration. A drug's pharmacokinetic profile can be described by distribution and elimination half-lives, initial volume of distribution, steady-state distribution volume, and metabolic and distributional clearance. After initiating a fixed rate of drug infusion, four to five terminal elimination half-lives are required to reach a steady state of constant plasma concentration. If a loading dose is given, a steady state can be achieved more rapidly. The most rapid method of achieving a constant plasma concentration involves using a variable rate of drug infusion that adjusts for the metabolic clearance and distribution of the drug. Computer-driven infusion pumps can be used to rapidly achieve, then maintain, constant plasma concentrations of a drug.

journal_name

Anaesth Intensive Care

authors

Stanski DR

doi

10.1177/0310057X8701500103

subject

Has Abstract

pub_date

1987-02-01 00:00:00

pages

7-14

issue

1

eissn

0310-057X

issn

1448-0271

journal_volume

15

pub_type

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