The fresh blood is inserted into the device in a single-use cuvette in which hemoglobin is transformed to azidemethemoglobin in a chemical reaction. Since this product is measured spectrophotometrically by Hemocue, I am almost sure that the measurement method is too specific to be influenced by a crystalized substance like hemozoin, eventhough this has the same origin, as it is the metabolitic product of hemoglobin produced by malaria parasites.

The company which produces Hemocue - or at least their customer service -was not able to answer this question. But since this is very important in our research about the influences of avian malaria parasites on the physiology and performance of migratory birds I would like to get a confirmation by a veterinarian, medical doctor or chemisist with more expertise in this topic. Thank you in advance!