Reticulocytes and Heinz body testing is performed on the FBC specimen.

FBC and retics cannot be performed on clotted specimens.
FBC profile consists of: Haemoglobin, White Cell Count, WBC Differential, Red Cell Count, Mean Corpusular Volume, Haematocrit,and Platelet Count
If blood film review is required, a film must be requested
A sepsis score is performed routinely on all FBC requests on neonates from Mater Mothers and Mater Redlands hospitals.
The finding of Heinz Bodies in the blood is a sign of oxidative haemolysis. This is most commonly seen in neonates, with chemical poisoning or drug intoxication, G6PD deficiency or in the presence of an unstable haemoglobin eg. Hb Koln