OB exam 1 Flashcards
Para
Number of pregnancies that reached viability. Dead or alive. Greater than 20 weeks.
Gravida
Is or has been preg. Includes abortions.
Primigravida
First pregnancy
Primipara
Has given birth to one child past age of viability
Multi gravity
Has been preg previously
Multipara
Has carried two or more pregnancies to viability.
Nulligravida
Has never been and is not currently preg
Post term
Pregnancy that goes beyond 42 weeks plus 6 days
Preterm
Preg that has gone beyond 20 weeks but has not completed the full 38 weeks plus 6 days
Term
Beginning of 38 weeks and went to the end of the 42nd week plus 6 days
Viability
Capable of. Living outside uterus. 22-25 weeks
Fertilization
Union of ovum and spermatozoon. Occurs in the outer third of Fallopian tube
Implantation
Contact between growing structure and uterine endometrium. 8-10 days after fertilization
Decidua
Shedding the lining of the uterus
Chorionic villi
Join with soft tissue to make placenta
Babies body
Placenta is
Pumps blood
The reservoir
2 arteries 1 vein. In placenta
Vein brings oxygenated blood.
Ductus arterioles
Bypass lung
Foramen ovale
Bypass right ventricle.
NST
Want 2 accelerations of 15 bpm, lasting 15 seconds, within 20 minutes.
Positive NST/CST
BAD! Want it to be negative.
Biophysical profile
NST, fetal breathing, gross body movement, fetal tone, quantity of fluid, grade placenta.
Fetal kick count
Over 6 per hour.
Fundal height
Should be at belly button at 20 weeks.
Fungal height
Measure from pubic symphysis to fundus.
Maternal serum alpha feto protein. MSAFP
If more than specific amount than suspect neural tube defect. If lower suspect downs.
Chorionic villus sampling CVS
Get DNA from placenta .can be done before 12 weeks.
Pericutaneous umbilical sampling PUBS
Done under general anesthesia. Take blood from cord. Done late. 36 weeks.
Amniocentesis
To get DNA. 1 weeks.
Pseudocyesis
False pregnancy.
Presumptive signs of preg
Amenorrhea Breast soreness NV Frequent urine Quickening. Linea negra, melasma, striae gravidarum
Probable signs of pregnancy
Lab test 95-98% reliable.
Home test, if neg repeat in week.
Hegar-vaginal exam to feel uterus and baby.
Goodell-cervix become soft
Chadwicks-cervix become engorged with blood and become bluish.
Braxton hicks- contraction of uterus to help blood flow and growth.
Fetal outline felt.
Accelerations
Increase HR of baby to we know brain is being oxygenated.
If flat than baby could be asleep or in bad shape.
Placental function
Lungs- o2 and co2 exchange. GI-absorbe nutrients Renal- filter urea and other waste. Liver-processes moms blood for iron. Endocrine- maintains pregnancy and prevents another. Prepares breasts for lactation. Thermal control. Immune- mostly bacterial stuff.
Whartens jelly
Cushions cord.
HCG hormone produced to…
Continue to manufacture progesterone.
Where does contraction start?
Top middle of fundus then goes down and in.