[Sampling variables in examinees--skin site differences in the measurements of bleeding time and self-monitoring of blood glucose].
Differences in bleeding time and self-monitoring blood glucose (SMBG) level at various skin sites have been scarcely examined in humans. The within-run variation (n=6) of bleeding time in earlobes (Duke's method) ranged from 1 min to 3 min and 30 sec (mean = 1 min and 40 sec), and in day-to-day variation (n= 8), it ranged from 1 min to 3 min (mean = 1 min and 36 sec). Site difference in bleeding time was speculated. In SMBG, firstly, sequential measurement of blood collected from 10 sites in the left forearm was performed, and secondly, comparative measurements of venous blood and blood from finger tips (1-5th), palm (3 sites), forearm (4 sites) and earlobe (1 site) were sequentially performed within 30 min before and after glucose (Trelan-G, 75g) intake. Glucose levels in blood from the fingertips, palm and forearm were generally higher than that of venous blood, and site differences were observed among fingertips, palm and forearm. It was speculated that bleeding time and capillary blood glucose or SMBG level differ among skin sites.
Yoshida
Hiroshi
H
North Fukushima Medical Center, Date 960-0502.
Imafuku
Yuji
Y
D001760:Bleeding Time / Q000592:standards*; D015190:Blood Glucose Self-Monitoring / Q000592:standards*; D001800:Blood Specimen Collection / Q000379:methods*; D006801:Humans