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The haematocrit (packed cell volume)
A. May be obtained by centrifugation of blood.
B. May be calculated by multiplying the mean cell volume by the red cell count.
C. Rises in a patient who sustains widespread burns.
D. Rises following injections of aldosterone.
E. Rises in macrocytic megaloblastic anaemias such as pernicious (B12 deficiency) anaemia.

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