Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-3-10
pubmed:abstractText
This study examines the intrasubject variability in theophylline volume of distribution (V) and clearance (CL) in critically ill, mechanically ventilated adults. Fifteen patients received two intravenous doses of theophylline approximately ten hours apart. Although there was no statistical difference between the mean VI (first dose, 0.51 L/kg) and V2 (second dose, 0.47 L/kg), the absolute difference between measurements of 0.15 L/kg was statistically significant (p less than .05). Range of differences follows: between VI and V2, 3.8 to 72.4 percent (mean, 33.5 percent); between CL1 and CL2, 6.1 to 100 percent (mean, 32.2 percent). Absolute difference between clearances was 0.019 L/kg/hr. A comparative error analysis revealed an absolute difference for V of 27.9 percent and for CL of 37 percent. Considerable intra-subject variability was shown for theophylline V and CL in these critically ill adults. Variability in V was not significantly different than variability in CL, and may result in severe underdosing or overdosing.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0012-3692
pubmed:author
pubmed:issnType
Print
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
379-85
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Variability in theophylline volume of distribution and clearance in patients with acute respiratory failure requiring mechanical ventilation.
pubmed:affiliation
Henry Ford Hospital, Department of Pharmacy Services, Detroit 48202.
pubmed:publicationType
Journal Article