A technique for improved blood sampling during sleep studies.
Research protocols often require that blood samples be drawn during sleep. This study compares the efficacy of obtaining nocturnal blood samples using a standard heparinized intravenous setup versus the same intravenous setup used in conjunction with a small chemical heating pad. The chemical heating pad significantly improved the number of blood samples obtained and the maintenance of intravenous patency. The use of a chemical heating pad is an economical way to resolve the frustration of lost blood samples while maintaining a reasonable environment to monitor sleep.
Department of Psychiatry, University of California-San Diego, La Jolla.
E
E
Ona
J E
JE
Dimsdale
S
S
Ancoli-Israel
E
E
Dillon
L
L
Watkins
T V
TV
Coy
J
J
Clausen
D000328:Adult; D001800:Blood Specimen Collection / Q000295:instrumentation*; D002408:Catheters, Indwelling; D005260:Female; D006361:Heating / Q000295:instrumentation; D006801:Humans; D006973:Hypertension / Q000097:blood; D008297:Male; D008875:Middle Aged; D017286:Polysomnography / Q000295:instrumentation*; D012891:Sleep Apnea Syndromes / Q000097:blood; D014654:Vascular Patency / Q000502:physiology