Blood-volume: a commentary.

摘要: Under physiological conditions and on average, the total volume of blood in circulation is constant. The (BV) separate volumes plasma erythrocytes vary according to climatic conditions, pregnancy presence disease. Such changes can have clinical significance although they are rarely revealed common practice because a lack availability accurate, cheap simple techniques for measurement BV. Diminution BV may occur under intensive-care regimes life-threatening; acute exposure hot climate leads an expansion corresponding fall circulating haemoglobin level. same normal are, perhaps, exaggerated tropics. Failure PV has adverse effects foetus. New investigations Singapore health, disease seem be desirable now that people, including pregnant women, move frequently between cold environment provided by air-conditioning.