Abstract
A hemagglutination-inhibition reaction (HAIR) for semiquantitative determination of human placenta lactogen hormone (HPL) in serum or whole blood from pregnant women is presented.
The lower level of HPL concentration in serum for a positiv reaction of the test was found to be 2,3 mg/liter, making it suitable for determinations after the 32nd week of pregnancy.
A microtechnique for combined sampling and dilution of capillary blood makes the assay suitable as a screening procedure in places with limited laboratory facilities.