[Determination of urea with the Merckognost test strips, and a comparison with a photometric method (author's transl)].

The precision and practicability of the Merckognost-Urea Test Strips was tested in plasma, haemolysate, capillary and venous blood. The diacetylmonoxim method using an AutoAnalyzer II was taken as the reference method. The possibility of varying haematocrit values influencing the whole blood findings was taken into consideration in the investigations.