Changes Of Pregnancy During Pregnancy

1793 Words Jul 27th, 2016 8 Pages
The changes in the hematologic system and in haemostasis during pregnancy are important for maternal and foetal homoeostasis. The dramatic changes of pregnancy increase the demands of nutrient intake to support the mother and foetus. Iron is an essential nutrient required during pregnancy because it is required to create new red blood cells during pregnancy that is essential to synthesise haemoglobin so that oxygen can be transported between the mother and foetus. During pregnancy, the volumes of both blood and plasma increase to tolerate the demands of the uterus enlarging. Also, the hypertrophied vascular system increases to maintain systemic blood pressure. Furthermore, during delivery, a mother can be expected to lose large volumes of blood and adequate iron stores help the mother to tolerate blood loss. Moreover, red blood cell volume needs to increase to allow adequate availability of oxygen to the foetus. Increased RBC volume has to occur to support the expanding uteroplacental circulation, which ensures the foetus receives the essential amounts of nutrients during gestation. Iron stores in nonpregnant women are commonly low because of the loss of menstrual blood which 1 mL blood loss is equal to the loss of the element iron 0.5mg. In total, the typical Fe loss during menses loss is between 12 to 15mg. The typical values for Iron intake by women is between 12 to 18mg/day. However, in the UK, the Reference Nutrient intake for women between the ages of 19-50 years is…
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