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All the changes that occur in a woman's body during pregnancy are related to and oriented towards the well-being and healthy growth of the baby in her womb. During the gestation months, your body adapts to shelter and feed your baby. The woman experiences hormonal changes, changes in the forms of her body, in her skin, appetite, respiration ... as well as in her blood. What changes occur in a woman's blood during pregnancy?
The pregnant woman's blood It has an essential function for the survival of the baby, since it is the route by which the mother transports the food to the child. Through the blood the baby can also eliminate all the waste produced during pregnancy. The blood changes until it is able to fully meet the needs of the fetus. The entire process occurs with the mediation of an organ that is created solely for it: the placenta.
Generally, the flow or volume of blood in a person's body is about 4-5 liters. In the case of a pregnant woman, this flow increases by approximately one and a half liters, doing so by increasing plasma (the fluid in the blood). As a result of this change, and for the woman to harbor a greater amount of blood, her blood vessels dilate. That is why many women have varicose veins during pregnancy.
Considering that during pregnancy the pressure exerted by the uterus as it grows on the veins and capillaries around it, causes less blood flow to the heart. This is what can cause leg swelling during pregnancy. The most important vein that passes through this part of the body is the inferior vena cava, as it collects all the volume of flow that comes from the lower extremities and carries it to the heart.
This vein passes through the right side of the uterus, so in the face of circulation problems and the discomfort that they derive, it is advisable to do physical exercises, walk and keep the legs in something whenever possible. It is also advisable to avoid lying on the back and the right side. Thus, the best posture is to lie on your side on the left side.
During pregnancy, the mother's heart rate accelerates between 10 and 15 beats per minute, also during sleep, and even slightly more in the case of twins. Thus the pulse of a pregnant woman usually oscillates between 60 and 90 beats per minute. This happens because the heart beats faster by having to pump that extra blood flow that is given in order to support the fetus.
As for the blood pressure, it is usually lower during the first and second trimesters of pregnancy due to the dilation of the blood vessels, although when the term of pregnancy approaches, it returns to its normal values. One thing to keep in mind is that the systolic pressure should never be higher than 140 Mm of mercury in the blood, nor the systolic lower than 90.
You can read more articles similar to Changes in the circulatory system during pregnancy, in the category of Stages of pregnancy on site.