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The estimated date of delivery (EDD), also known as expected date of confinement, [ 1 ] and estimated due date or simply due date, is a term describing the estimated delivery date for a pregnant woman. [ 2 ] Normal pregnancies last between 38 and 42 weeks. [ 3 ] Children are delivered on their expected due date about 4% of the time.
Uterine contraction. Uterine contractions are muscle contractions of the uterine smooth muscle that can occur at various intensities in both the non-pregnant and pregnant uterine state. The non-pregnant uterus undergoes small, spontaneous contractions in addition to stronger, coordinated contractions during the menstrual cycle and orgasm.
These are normal physiological adaptations that cause changes in behavior, the functioning of the heart, blood vessels, and blood, metabolism including increases in blood sugar levels, kidney function, posture, and breathing. During pregnancy numerous hormones and proteins are secreted that also have a broad range of effects.
10–50% of pregnancies[1][7] Miscarriage, also known in medical terms as a spontaneous abortion, is an end to pregnancyresulting in the loss and expulsion of an embryoor fetusfrom the wombbefore it can survive independently. [1][4]Miscarriage before 6 weeks of gestationis defined as biochemical lossby ESHRE.
Uterine atony is the failure of the uterus to contract adequately following delivery. Contraction of the uterine muscles during labor compresses the blood vessels and slows flow, which helps prevent hemorrhage and facilitates coagulation. Therefore, a lack of uterine muscle contraction can lead to an acute hemorrhage, as the vasculature is not ...
Newmark's influence chart. Newmark's Influence Chart is an illustration used to determine the vertical pressure at any point below a uniformly loaded flexible area of soil of any shape. This method, like others, was derived by integration of Boussinesq's equation for a point load. [1]
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Progesterone (P4) is an endogenous steroid and progestogen sex hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species. [1][13] It belongs to a group of steroid hormones called the progestogens [13] and is the major progestogen in the body.