The steps of the cardiac cycle in sequence are... isovolumic contraction, isovolumic relaxation, ejection, passive ventricular filling, active ventricular filling.isovolumic relaxation, isovolumic contraction, ejection, passive ventricular filling, active ventricular filling.he steps of the cardiac cycle in sequence are... isovolumic contraction, isovolumic relaxation, ejection, passive ventricular filling, active ventricular filling.
Pregnancy, also known as gravidity or gestation, is the time during which one or more offspring develops inside a woman. A multiple pregnancy involves more than one offspring, such as with twins.Pregnancy can occur by sexual intercourse or assisted reproductive technology. It usually lasts around 40 weeks from the last menstrual period (LMP) and ends in childbirth. This is just over 9 lunar months, where each month is about 29Â½ days. Hypercoagulability in pregnancy is the propensity of pregnant women to develop thrombosis (blood clots). 2  Pregnancy itself is a factor of hypercoagulability (pregnancy-induced hypercoagulability), as a physiologically adaptive mechanism to prevent post partum bleeding.
Introduction. Nuchal translucency (NT) is the assessment of the amount of fluid behind the neck of the fetus, also known as the nuchal fold. An anechoic space is visible and measurable sonographically in all fetuses between the 11th and the 14th week of the pregnancy (Figure 1).he findings of numerous studies suggest that an effective first trimester screening for trisomy 21 can be obtained by the combination of maternal age and measurement of fetal NT [ 4 - 11 ]. At a risk cut-off of 1 in100, the detection rate of trisomy 21 is about 75%, at a false positive rate of about 2%.