Careful monitoring of blood glucose levels in an especially high risk neonatal population is essential to the critical care of the newborn. It is often necessary to determine a blood glucose value expediently to provide immediate therapy. This study compares the laboratory blood glucose value with the Dextrostix and four commercially available glucose meters.
Blood glucose values were determined on 111 heel stick samples from neonates in the NICU. Each sample was evaluated by the following methods: Laboratory (Beckman-Astra); Dextrostix (Ames Co.) Glucometer, Accucheck; Glucocheck and Glucoscan. Correlation co-efficients and regression equations were obtained for reach meter-laboratory relationship and the Dextrostix-laboratory relationship. All of the r values obtained were significant at the .01 level. The values were: Dextrostix-.60; Glucometer-.72; Accucheck-.80; Glucocheck-.73; Glucoscan-.67. The Accucheck and Glucocheck were correlated with the laboratory glucose value over the entire range. The Glucoscan and. Glucometer showed best correlation at lower glucose values. The Dextrostix gave the poorest indication of the true laboratory value.
Since the ability to determine an instantaneous glucose value using a commercially available meter is readily available, it seems prudent for nursery staff to utilize the Accucheck or Glucocheck meter for bedside clinical determination of blood glucose.