Test 1 Flashcards
4 Phases of Menstrual Cycle
Menstrual/Shedding
Proliferative/Follicular
Secretory Phase
Ischemic Phase
Menstrual Phase
- Functional 2/3 of endometrium is shed if NO pregnancy occurs
- Body retains basal layer of endometrium
Proliferative Phase/Follicular
- Rapid growth causing rebuilding of endometrial layer
Secretory phase
- Endometrium is thick velvet with rich blood supply and glandular secretions
- Supportive environment for fertilized ovum
- Layer regresses if NO fertilization
Ischemic Phase
- If no pregnancy, blood supply to endometrium is cut off and necrosis occurs
- Forces functional layer to separate from basal layer and menstrual bleeding occurs.
Ovulatory Phase
- 2 days before ovulation
- Final follicular maturation,
- Rise in LH and FSH, Progesterone, Decrease in Estrogen
Luteal Phase
- Progesterone is dominant hormone
- Begins after ovulation with release/rupture of ovum
- Corpus luteum secretes progesterone to support fertilized egg until placenta takes over, but regresses if implantation does not occur, as well as decline in progesterone/estrogen
Placenta Function
-Exchange nutrients/waste products between fetus and mom
-Forms at implantation and complete by week 12
-Produces hormones to maintain pregnancy
- Provides fetus with passive immunity in 3rd trimester
Placenta Structure
- formed from trophoblast
- Inner Membrane: Amnion
- Outer Membrane: Chorion
Amniotic Fluid
- 800-1200mL by end of pregnancy
- Surrounds, cushions, protects and allows for movement
- Maintains fetal body temp
- Allows for maturation of urinary, respiratory and GI tract (and auditory stimulation)
Umbilical Cord
- 2 arteries, 1 vein (AVA)
- Arteries carry deoxygenated blood/waste from fetus
-Vein carry deoxygenated blood/oxygen TO fetus
Subjective Signs of Ovulation
Abdominal Pain/Mittelschermz
Objective Signs of Ovulation
Body Temp - Increaes .5-1 degree day of
Pre/Post Mucus - Thick
Cervical Mucus - clear, egg white
Microscopic Ferning
Presumptive Signs of Pregnancy
MAY mean pregnancy
Amenorrhea
Breast Tenderness
Fatigue
Potential spotting
Probable Signs of Pregnancy
Indicative of pregnancy
- positive HCG
- Chadwick’s Sign - bluish cervix/vagina
- Hegar’s Sign - softening of uterine walls
- Goodell’s Sign - softening of cervix
Positive Signs of Pregnancy
Only result of fetus
Palpate mother pulse and find different sound using doppler
See fetus on US
Palpate fetal movement
Zygote
12-14 days post-ovulation
Ovum is fertilized until implanted in uterus
Embryo
3-8 weeks after fertilization
Embryo most vulnerable during first 8 weeks
Fetus
9 weeks after fertilization to 38+ weeks
Fewer anomalies caused by teratogens
Human Chorionic Gonadotropin
- HCG
- Peaks at 10 weeks, 50-70 days
- Glycoprotein
- Stimulates production of progesterone and estrogen in corpus luteum until placenta takes over
Estrogen
- Stimulates uterine development to create suitable environment
- Peaks at 32 weeks
Relaxin
- True pregnancy hormone
- Diminishes contraction strength and softens cervix
- Leads to long term collagen remodeling to allow ligaments to stretch
- Aids breast development
Prostaglandin
- Lipid
- Function unknown
- Thought to induce labor since it’s in high amounts at time of labor
Progesterone
- Maintains endometrium/decidua
- Relaxes smooth muscle to prevent spontaneous contractions
- Aids in breast development
- Peaks at 32 weeks
Nausea Prevention
Dry Crackers before getting out of bed
Small, frequent meals
Do not skip meals
Avoid fatty goods
Pregnancy Safety
NO hot tubs, saunas, steam rooms
How to prepare client for pregnancy
Attitudes, pregnancy classes, childbirth prep, doula
Triple/Quad screen results have come back with an elevated MSAFP level even after verifying gestational dates with repeating ultrasound. What would you anticipate would be net step in the assessment sequence to determine the wellbeing of the fetus?
Amniocentesis
After which of the following prenatal tests would you anticipate that you wil be asked to administer RhoGam to RH negative woman?
Direct Coombs or amniocentesis
What tests are administered during the second trimesteer?
Indirect Coombs in RH neg mom
Free cell DNA and/or MSAFP (triscreen/quad)
What is the most common hematological disorder in pregnancy?
iron deficiency anemia
What sexually transmitted disease if left untreated can b transmitted to fetus?
syphilis
What is a normal fasting glucose for a pregnant woman/
65-95
What normal flora can produce meningitis in a newborn?
group beta strep