Reliability of a simple and rapid glucose measuring device in conducting oral glucose tolerance tests.

160 oral glucose tolerance tests (OGTTs) were carried out, the glucose measurements being performed with the rapid dry-lab device Reflomat/Reflotest-Glucose and the GOD-Perid method. In 151 patients (94.4%) the two methods of measuring glucose led to the same diagnoses (i.e. "normal", "suspect" or "diabetic"). This high conformity in the results suggests the reliability of the rapid device in conducting OGTTs. Only in 9 subjects (5.6%) were the clinical conclusions different, Reflotest-Glucose giving predominantly "more pathological" results. It is, however, not possible to say which method showed "falsely positive" and which one "falsely negative" results.