Lecture 1B Flashcards
Most pregnancies last about ____ weeks
40
Pregnancys are split into
Trimesters
First trimester is weeks
1-13
Second trimester is weeks
14-26
Third trimester is weeks
27 until ‘term’
In the first trimester assesment what is looked at (4)
Presence of gestational sac to confirm pregnancy
Location of gestational sac- to confirm intrauterine pregnancy
Size of sac - confirms age
Number of sacs - number of fetus
In the first trimester what do we see within the gestational sac
An embryo, yolk sac and cardiac activity
We use _______ to confirm fetal heart rate
M-mode
In the first trimester an exam is usually perform at _______ to ______ weeks to exam ______
11-14
Assess certain abnormalities. Increased nuchal translucency measurement is suggested
In the first trimester the assesment also includes
Pelvic US of the mother looking at uterus, ovaries and adnexa
2 examples of non viable pregnancies
Ectopic pregnancies
Hydatidiform mole
3 pregnancy complications
Vaginal bleeding
Pelvic pain
Maternal pelvic masses or uterine abnormalities
In the first trimester assesment benefits (2)
Reduced anxiety for mother
Maternal/paternal attachment
the second trimester assesment occurs in what time period
18-22 weeks
In the second trimester assesment we look at
Assesment of viability- cardiac activity
Fetal number, presentation and anatomical survey to measure growth
Fetal environment
Maternal structures
In the second trimester assesment a limited exam can occur due to
Not seeing the heart well due to patient position - may have to bring patient back for limited exam
In the second trimester assesment you can have a ____ exam
Specialized
In the second trimester assesment a specialized exam is to ____________ and indications for this are _____(3)
Look at detailed examination of specific structures
Indications:
Anomaly suspected on level 1 or earlier
Family history
Abnormal blood tests
The third trimester assesment is common?
No
The third trimester assesment is limited due to
Fetal bone ossification, especially further along in the pregnancy
The third trimester assesment indications (4)
Gestational diabetes
Maternal measurements are inappropriate for age
Mother cannot feel baby
Checking the postion of baby before birth
Placenta location
Incompetent cervix
Multiple gestational pregnancies are considered high risk
Some pathologies are better seen once fetus has grown large
Further indications for 2nd and 3rd trimester
Vaginal bleeding
Abdominal/pelvic pain
Poor prenatal care
