Three portable glucose meters designed for self-monitoring of blood gl
ucose concentration in humans were tested using bovine blood samples s
tored in lithium heparin or potassium EDTA. Meter results were compare
d to plasma glucose concentrations determined by conventional laborato
ry methods. Statistical analyses revealed that the meters were reasona
bly accurate in predicting plasma glucose concentration. More importan
tly, error grid analysis revealed that the meter results usually would
suggest the appropriate treatment. Therefore, portable glucose meters
offer the bovine practitioner a convenient point-of-care diagnostic t
est.