The
packed cell volume (PCV), also called haemoatocrit is the proportion of blood
volume occupied by the red blood cells after centrifugation in a capillary tube
and is typically about threee times the volume of haemoglobin level, for
instance if the haemoglobin of a patient is said to be 12 the PCV shoud be 36.
this parameter can be used to calculate the mean cell volume (MCV) and mean
cell haemoglobin concentration (MCHC).
It is used to screen for anaemia when it
is not possible to measure and also for the diagnosis of polycythaemia vera and to monitor its treatment usually
measured in liter/liter (Cheesbrough; 2006) or percentage (pearson, 2001).
Adult
men: 0.40 – 0.54 (Cheesbrough, 2006.
Males
40 – 55% (pearson, 2001).
45.5
= 6.5% (Ezeilo, 2002).
REFERENCE
REFERENCE
Dodsworth
H.,Dean A., Broom G. (1981). Effect of smoking and the pill on the blo0od
count. Br J Haematol. 1984-488.
Dominguez
de Viollata E.D., Ruiz Carmona M.T., Rubio J.J., de Andrews S. (1981). “Equally
of the invivo and invitro O2-binding capacity of (12):1325-1328.
Environmental
Health Criteria (E.H.C.; 1999). Geneva: International programme on Chemical
Safety, World Health Organization. 1999.
Ernest
A. and Zibrak J.D. (November 1998)_. “Carbon monoxide poisoning”. The New
England Journal of Medicin 339 (22): 1603-1608.
Ezeilo
G.C. (2002). Textbook of Physiology. Oxford University Press. PP73.