PRENATAL CARE Flashcards
Not reliable indication until 10 days or more after expected menses onset
Cessation of menses (Amenorrhea)
Beaded pattern appears ______
after the 21st day
Presence of sodium chloride crystallization in the mucus
FERNING PATTERN
1st pregnancy only
- tenderness and paresthesia
- Appearance of veins
- Nipples become larger, deeply pigmented and more
erectile
- Areolae become broader and deeply pigmented
- (+) glands of Montgomery
- Gigantomastia
BREAST CHANGES
bright bluish red pigmentation at the vaginal mucosa
CHADWICK SIGN
CHANGES IN THE UTERUS
- Softening of the isthmus
- 6th to 8th week
Hegar sign
CHANGES IN THE UTERUS
-shape by 12 weeks
GLOBULAR
soft, blowing sound that is synchronous with maternal pulse
Uterine souffle
- sharp sound that is synchronous with fetal pulse
- produced by the rush of blood into umbilical arteries
- Usually not heard consistently
Funic souffle
CERVIAL CHANGES
becomes patulous to admit a finger
EXTERNAL OS AND CERVICAL CANAL
CERVICAL CHANGES
should remain closed
INTERNAL OS
Perception of fetal movements
a. By the mother
- Primigravid ?
- Multigravid ?
- Primigravid 18 to 20 weeks
-Multigravid 16 to 18 weeks
Perception of fetal movements
b. By the examiner
b. By the examiner
- 20 weeks
- Detectable 8-9 days after ovulation
- Peak at 60-70 days
- Nadir at 16th weeks
Beta-HCG
SONOGRAPHIC RECOGNITION OF PREGNANCY
4-5 weeks AOG
gestational sac
SONOGRAPHIC RECOGNITION OF PREGNANCY
35 days / 6 Weeks AOG
HEART MOTION
SONOGRAPHIC RECOGNITION OF PREGNANCY
predictive of gestational age
within 4 days
Up to 12 weeks
- CRL (Crown Rump Length)
- Define the health status of mother and fetus
- Estimate the gestational age
- Initiate a plan for continuing obstetrical care
GOAL OF INITIAL PRENATAL EVALUATION
ROUTINE PRENATAL CARE
**BCU-HV-75 OG
Blood typing
CBC
urinalysis
HBsAg
VDRL
75 grams OGTT (24 to 28 weeks AOG)
advanced maternal age patients (>/=35 years old)
routine prenatal care + neural tube defects screening
request it at 24-28 weeks
Glucose tolerance test
screened in the first trimester (15-20 weeks)
and repeated at the last trimester
Gonococcal screening
last trimester (29-41 weeks)
Group B streptococcus culture
NORMAL PREGNANCY DURATION
280 days
40 weeks
Expected Date of Delivery = First day of the last normal menstrual period + 7 days – 3 months
NAEGELE’S RULE
● First trimester – thru completion of 14 weeks
● Second trimester – thru completion of 28 weeks
● Third trimester – 29th thru 42nd weeks
TRIMESTERS
Each trimester = 14 weeks
Irregular menstruation: request for early transvaginal
ultrasound (at least 12 weeks of gestation which is accurate at that time) if unsure with LMP to know the AOG.
Regular vs irregularly menstruating women
● Psychosocial Risk Factors – nonbiomedical factors that affect mental and physical well-being
● Advisable frequency is at least once each trimester
PSYCHOSOCIAL SCREENING
potent teratogen
ETHANOL
o Growth restriction
o Facial abnormalities
o Central nervous system dysfunction
FETAL ALCOHOL SYNDROME
Dilated, occluded cervical glands bulging beneath the ectocervical mucosa
Nabothian cysts
To identify cytological abnormalities, a Pap smear is performed, and specimens for identification
Chlamydia trachomatis and
Neisseria gonorrhea
But if you have and asymptomatic bacteriuria (ASB) patient, what do you request?
URINE CULTURE
Prevalence of infection from____ is 2- 13% among pregnant women.
Chlamydia trachomatis
they specialize in complicated pregnancies) - to whom you may want to refer
PERINATOLOGIST
subsequent prenatal visits have been scheduled at intervals of 4 weeks until 28 weeks,
2 weeks until 36 weeks,
and weekly thereafter.
PRE NATAL VISITS
Measured as the distance over the abdominal wall from the top of the symphysis pubis to the top of the fundus
FUNDAL HEIGHT
o Heard between 16-19 weeks with standard stethoscope.
a) 20 weeks – 80 percent
b) 21 weeks – 95 percent
c) 22 weeks – all
FETAL HEART SOUNDS
FETAL HEART SOUNDS
Heard at ____ in Doppler
heard at _____ in Transvaginal
10 weeks
5 weeks
● Aneuploidy Screening
o 11- 14 weeks / 15-20 weeks
● Serum screening for NTD
o 15- 20 weeks
● Repeat Hemoglobin/Hematocrit and Syphilis Screening
o 28- 32 weeks
SUBSEQUENT LABORATORY TESTS
Special Screening for Genetic Diseases
- Tay Sachs Disease
- B Thalassemia
- Sickle Cell anemia
recommendations for weight gain
normal pre-pregnancy BMI
25-35 lb (11.5-16 kg )
recommendations for weight gain
1. twin pregnancy
2. young adolescents
3. Shorter women
- twin pregnancy = 35 to 45 lb (16 to 20 kg)
- young adolescents = strive for gains at the upper end of the range
- Shorter women = (<62 in. or <157 cm) strive for gains at the lower end of the range
Birthweight can be influenced significantly by starvation
-impaired brain development (animalfetuses)
-no detectable effects (human)
SEVERE UNDERNUTRITION
concept of fetal programming by which adult morbidity and mortality are related to fetal health
BARKER HYPOTHESIS
Accruing weight with age - rather than parity - is considered the main factor affecting weight gain over time.
WEIGHT RETENTION AFTER PREGNANCY
excessive vitamin A
may be teratogenic
more than 10,000 IU per day
PREGNANCY CALORIE requirement
accumulated in the last 20 weeks
additional 80,000 kcal
increase of 100 to 300 kcal per day
Protein requirement
1000 g of protein
5 to 6 g/day
most AA in maternal plasma fall
ornithine
glycine
taurine
proline
AA rise in concentration
glutamic acid
alanine
IRON
Total = 1,000 mg
INGESTION AT BEDTIME or EMPTY STOMACH
- 300 mg - fetus and placenta.
- 200 mg - are lost through various normal routes of
excretion, primarily the GIT - 500 mg - synthesis of erythrocytes.
Iron requirement after mid-pregnancy 6 to 7 mg/day.
* Recommended daily iron supplement is 27 mg, which is contained in most prenatal vitamins.
Overtly anemic women from iron deficiency responds well to oral supplementation with____
IRON SALTS
Supplemental iron is not necessary during the____
first 4 months of pregnancy
CALCIUM
The pregnant woman retains approximately
30 g of calcium
2.5 percent of total maternal calcium, most of which is in bone
In cases of gestational hypertension, the patient is required to take calcium in order to prevent___
preeclampsia
-lead to poor appetite, suboptimal growth, and impaired wound healing
-may cause dwarfism and hypogonadism, and a specific skin disorder, acrodermatitis enteropathica
ZINC DEFICIENCY
REQUIREMENT
12 mg
Maternal plasma vitamin B12 levels decrease in normal pregnancy and result mostly from reduced plasma levels of ___
carrier proteins— transcobalamin
Excessive ingestion of ___ also can lead to a functional deficiency of vitamin B12.
vitamin C
VITAMIN B6 supplementation
daily 2 mg
VITAMIN C
80 to 85 mg/day
—about 20 percent more than when nonpregnant.
In women suspected of having vit. D deficiency,
serum levels of ____ can be obtained
25-hydoxyvitamin D
fivefold risk of preeclampsia
Women who work
PREGNANT WOMEN EXERCISE
30 minutes or more per day
excellent source of protein, are low in saturated fats, and contain omega-3 fatty acids
FISH
except:
shark, swordfish, king mackerel, and tile fish.
caffeine intake during pregnancy be limited to
less than 300 mg daily
approximately three oz cups of coffee.
Nausea and vomiting of varying severity usually commence
first and second missed menstrual period and continue until 14 to 16 weeks.
The cravings of pregnant women for strange foods are termed
PICA
o ice (pagophagia),
o starch (amylophagia), or
o clay (geophagia) may predominate.
NON FOOD CRAVINGS
triggered b SEVERE IRON DEFICIENCY
many women experience fatigue and need increased amounts of sleep
effect of progesterone
pregnant mothers
REM sleep
increased?
decreased?
DECREASED
Pregnant women commonly develop increased vaginal discharge, which in many instances is not pathological. Increased mucus secretion by cervical glands in response to hyperestrogenemia is undoubtedly a contributing factor.
leukorrhea
treat hematopoietic cancers
umbilical cord blood transplantation
Perinatal mortality rates would be reduced by ___ if
maternal smoking was eliminated.
5%
patient have separate folic acid supplement during pregnancy in ____
FIRST TRIMESTER
FOLIC ACID SUPPLEMENTATION
all neural tube defects can be prevented by
400 microgram of folic acid (peri conceptional period)
4 mg folic acid (month before conception)