Gestational diabetes affects about 3% of pregnancies in German-speakin
g countries. Roughly one third of these pregnancies develop a requirem
ent of insulin. In unrecognised and hence untreated pregnancies, perin
atal morbidity and mortality are increased 20-fold. Gestational diabet
es is asymptomatic and only 60% of patients have risk factors for the
condition; thus, general screening with oral glucose tolerance testing
is necessary to detect all cases. Most antenatal medical care is prov
ided by gynaecologists in practice and by general practitioners who do
not have a sophisticated laboratory at their immediate disposal. Gene
ral screening requires a test that is simple, inexpensive and quick bu
t nonetheless meets high quality standards. A new microcuvette rapid t
est fulfills these requirements; the results are ready within a few mi
nutes' time. We performed parallel blood glucose measurements with a s
tandard enzymatic method and with the rapid test in 500 unselected pre
gnant women undergoing an oral glucose tolerance test at our obstetric
clinic. The mean fasting, 1-hr and 2-hr values were 77,128 and 106 mg
/dl, respectively, as measured by the enzymatic test and 75,129 and 10
7 mg/dl as measured by the rapid test. The results of the reference en
zymatic method and the rapid test agreed at a high level of significan
ce (r = 0.98; p < 0.0001).