Haemoglobin and packed cell volume have been studied in many neonatal
study populations, but in Jos, Nigeria, no real reference values exist.
On the other hand, disorders of the blood are common in this
environment, necessitating knowledge of the references values of blood
parameters as are applicable to neonates. Blood samples were taken from
121 umbilical cords at time of birth, and were analysed for haemoglobin
concentration (Hb) and packed cell volume (PCV). The Hb concentration
was determined by the indirect colorimetric method, and the PCV by the
microhaematocrit centrifuge method. The mean values obtained were Hb
12.13 ± 0.11 g/dl and PCV 37.95 ± 0.49%. The mean umbilical
cord blood haemoglobin and packed cell volumes were compared with those
of the mothers, taken also at the time of delivery. The maternal values
were Hb 10.87 ± 0.012 g/dl and PCV 34.51 ± 0.045%. The
comparison shows statistically significant difference in Hb
(P<0.0001, n =121) and PCV (P<0.0001, n = 121). The study
establishes a baseline data on Hb and PCV in neonates in Jos