Page 431 - Essential Haematology
P. 431
Chapter 30 Pregnancy and neonatal haematology / 417
*
Kleihauer positive Fetomaternal bleed
DAT negative* Check Kleihauer MCV low α-Thalassaemia
Raised reticulocytes Check DAT Kleihauer negative Check MCV The investigation of neonatal anaemia. G6PD, glucose 6 phosphate dehydrogenase; MCV, mean corpuscular volume. The - -
Anaemia Reticulocyte count DAT positive Probable HDN Pyruvate kinase deficiency direct antiglobulin test (DAT) test may be negative in haemolytic disease of the newborn (HDN) caused by ABO incompatibility.
Low reticulocytes MCV normal or high Membrane disorder G6PD deficiency
Red cell aplasia Parvovirus B19 Diamond–Blackfan Alloimmune anti-Kell
Figure 30.4
