Jarvis Quiz 5 Flashcards
What is the fertilized ovum called when it enters the uterus? What does it do?
blastocyst;produces human gonadotropin (hCG), which stimulates the corpus luteum to continue making progesterone. It causes a small amount of bleeding when it implants to the uterine wall.
Talk about the placenta and what it does at certain weeks
Week 7: it supports the corpus luteum with pregnancy by producing progesterone
Week 10: completely takes over the corpus luteum by producing progesterone
What type of organ is the placenta? What does the placenta produce?
Endocrine organ; produces several hormones to aid in growth and maintenance of the fetus and direct changes in the woman’s body to prepare for birth and lactation
What does hCG do? Name four things
- Stimulates the rise in progesterone
- Supports the corpus luteum
- Supports deep implantation of the placenta into the uterine wall
- Helps maintain viability of the fetus
What does progesterone do? Name three things
Maintains the endometrium around the fetus
Increases the alveoli in the breast
Keeps the uterus in a quiescent (inactive) state
What does estrogen do?
Stimulates the duct formation in the breasts, increases the weight of the uterus, and increases certain receptors in the uterus that are important at birth.
How long does pregnancy last?
280 days from the first day of the last menstrual period (LMP)
(40weeks), 10 lunar months/9calendar months
Why does pregnancy include 9 calendar months but 10 lunar months?
The 10 lunar months include the 2weeks when the follicle was maturing but before conception actually occurred.
How is pregnancy divided up?
Trimesters:
1st: first 12 weeks
2nd: week 13-27
3rd week: 28 til delivery
What do you call a mama who is pregnant for the first time?
Primigravida
What do you call a mama who delivered her first baby?
Primipara
What do you call a mama who is pregnant, but not for the first time?
Multigravida
What do you call a mama who delivered a child, but it isnt her first rodeo?
Multipara
What does the GTPAL stand for?
Gravida= number of pregnancies Term= babies born full term (37-42 weeks) Para=pre-term births Abortion=missed, therapeutic, voluntary L=living children
What are the three types of s/s of pregnancy?
Presumptive: amenorrhea, n/v, breast tenderness, fatigue, urinary frequency
Probable: those detected by examiner (enlarged uterus)
Positive signs: direct evidence= fetal heart tones (FHT) or cardiac activity with ultrasound
How many days after conception before the hCG serum becomes positive after the blastocyst implants into the uterus?
8-11 days after conception
What s/s may a woman experience during the first trimester?
Breast tingling and tenderness with mammary growth, n/v, fatigue
What do estrogen and progesterone cause during the first trimester?
Hypertrophy of the uterine muscle cells, uterine blood vessels and lymphatics enlarge
What shape is the uterus during pregnancy? What causes urinary frequency?
Globular; the uterus compresses the bladder
What happens to the blood pressure during the first trimester?
Drops in the 7th week until midpregnancy r/t falling peripheral resistance.
Returns to baseline gradually by term
During which week of the embryonic period does the fetal period begin?
9weeks
At which week range can FHT be heard? What device can you hear it with?
9-12weeks; Doppler imaging
At which week can the uterus be palpated just above the symphysis pubis?
12weeks
At which weeks do the n/v subside? What does a woman experience during the second trimester?
After weeks 12-16, n/v improve.
Second trimester: women experience fetal movement (quickening), breast enlargement, colostrum from nipples, darkening of areole and nipples, linea nigra and striae gravidarum
When is quickening felt?
18-20wks
Talk about colostrum
The precursor of milk that may be discharged from the nipples during pregnancy. Yellow color and contains more minerals and protein, but less sugar and fat than mature milk. It also contains antibodies which are protective for the newborn during the first days of life until mature milk production begins.
What is blood pressure like during the second trimester?
May be 2-8mmHg lower (systolic)
5-15mmHg lower (diastolic)
The most pronounced drop is at 20weeks; may cause dizziness, faintness
What do a woman’s insides start to do during the second trimester?
Stomach displacement from enlarging uterus, altered esophageal sphincter and gastric bone (may cause heartburn), intestines are displaced by growing uterus, tone and mobility are decreased (constipation), gallstones may form from bile stasis and increased cholesterol
Talk about the respiratory system during pregnancy
Progesterone and estrogen cause increased respiratory effort by increasing tidal volume. HgB also increase with oxygen capacity increase, drop in PaCO2 (may cause dyspnea)
Talk about TSH and plasma iodine levels during the second trimester. What about the thyroid gland?
TSH decrease by week 8-14. Plasma iodine levels decrease.
Thyroid gland increases in 15% of women
What is epulis of pregnancy?
Gingivitis (gums bleed) as a result of capillary growth
Bloody noses may also occur with the 2nd trimester
Which device can you use (and at which week) during the 2nd trimester to listen to the FHT?
Fetoscope at 17-19weeks
When is the fetal outline palpable?
20weeks
When does increasing blood volume peak during pregnancy? What happens to blood pressure?
Middle of the third trimester.greater with multiple gestation. BP begins to slowly rise again.
What does uterine enlargement do to the mama in the third trimester?
Causes the diaphragm to rise and the shape of the rib cage to widen at the base. Decreased space for lung expansion may cause SOB, the rising diaphragm displaces the heart up and to the left. CO, SV increase, pulse raises by 15-20bpm, a functional systolic murmur may be heard (grade 2/6 or less)
Describe edema in the mama during the third trimester
Edema of the LE may occur as the enlarging fetus impedes venous return and from lower colloid osmotic pressure. The edema worsens with prolonged leg dependency (standing).
Talk about vericosities in the mama during the third trimester
Familial tendency, form or enlarge from progesterone-induced vascular relaxation. Engorgement may occur with full uterus compressing the inferior vena cava and pelvic vessels. Hemorrhoids may occur as progesterone causes bowel relaxation and constipation
Describe progressive lordosis in the pregnant gal
Inward curvature of the lumbar spine to compensate for the shifting center of balance with the enlarging uterus. Backaches occur with this. Slumping of the shoulders, increased breast weight, and anterior flexion of the back may cause carpal tunnel
What is engagement in a pregnant woman? When does it occur?What are the symptoms of it?
Lightening/dropping; the fetal head moves down into the pelvis. Symptoms= lower appearing and smaller measuring fetus,urinary frequency, increased vaginal secretions from increased pelvic congestion, and increased lung capacity
What is effacing?
Thinning of the cervix
Talk about the mucous plug
Formed in the cervix as a mechanical barrier during pregnancy/ it is expelled at variable times before/during labor.
What is considered post-term pregnancy?
After 42weeks
How do you calculate the EDD?
Nageles rule (280 days from the first day of LMP) LMP + 7 days - 3mos
Besides nageles rule, how else can you accurately determine gestation?
Physical examination : measurement of hCG and ultrasound (most
What has the history of teen pregnancy incidences been like over the years?
The number has decreased since 1990 by 42% because of contraception improvements.
How many teens get pregnant each year and between which ages? How many are unplanned? Which groups have the highest pregnancy rates?
750,000teens between 15-19 get pregnant each year. 2/3rds of these occur at ages 18 & 19.
82% of them were unplanned. Most common in Africans and Latinas. (African rates have also decreased since 1990 by 48%)
What are teen mom babies most at risk for?
Toxemia and low birth weight
What are the pregnancy risks for teen mom?
Psychosocial problems; medical risks are usually r/t poverty, poor nutrition, substance abuse, STIs, emotional/physical abuse.
Talk about women who become pregnant after the age of 35
More often becoming pregnant nowadays. Usually more prepared emotionally and financially to become mamas. They are more at risk for infertility and baby anomalies. Risk for Down Syndrome increases
Why does risk for infertility increase with maternal age increase?
Decrease in the number of health of eggs to be ovulated, a decrease in ovulation, endometriosis, and early onset menopause