Chapter 6 & 8 Flashcards
Exam 1
What causes uterine muscle fibers to grow in length and width?
estrogen
By 12 wks gestation, what can be palpated above the symphysis pubis?
the uterus
Where is the fundal height at 20 wks gestation?
at level of umbilicus- 20 cm
What is a reliable determination of gestational age until 36 wks gestation?
fundal height
After 36 wks gestation, why isn’t fundal height a reliable determinator of gestational age?
the uterus begins descending into the pelvis (the baby drops)
Where is the fundal height at 36 wks gestation?
at the xiphoid process
irregular, not real labor
Braxton Hicks contractions
softening of the cervix is called
Goodell sign
formation to prevent ascent of bacteria from vagina into the uterus
mucus plug
What is the increased vascularization of the cervix called and what does it look like?
Chadwick signs; bluish- purple in color
What happens to the vagina during pregnancy?
*Increased vascularity with thickening, vulva is thicker
*leukorrhea- secretions more acidic, white, and thick
What do the ovaries release to maintain pregnancy & to relax smooth muscle?
Progesterone
The cessation of ovulation is an inhibition of what?
FSH and LH
What increases in size and nodularity to prepare for lactation?
Breasts
What increases in size, becomes more erect and pigmented?
nipples
antibody-rich, yellow fluid that can be expressed after the 12 wk of pregnancy
colostrum
Conversion from colostrum to mature milk happens when?
after delivery
An adaption of the cardiovascular system during pregnancy is an increase in blood volume. What percentage above pre-pregnancy levels are seen?
50% above pre-pregnancy levels
An adaption of the cardiovascular system during pregnancy is an increase in venous return and an increase in HR which leads to an increase in what?
cardiac output
What cardiovascular abnormality is normal in pregnancy?
a murmur
An adaption of the cardiovascular system during pregnancy is an increase in the number of RBCs which can lead to what?
plasma volume > RBC; leading to hemodilation (physiologic anemia)
An adaptation of the cardiovascular system during pregnancy may be an increase in IRON demands, fibrin and plasma fibrinogen levels, and some clotting factors leading to what?
hyper-coagulable state- clots block perfussion that can be fatal to fetus
(increase in IRON demand may drive PIKA)
BP drops when woman lies down due to pressure of uterus on vena cava leading to what?
Vena Cava Syndrome
An adaption of the respiratory system during pregnancy may be breathing more from where?
diaphragm/ diaphragmatic breathing