limbiks_Pregnancy III Student 2023.pptx - limbiks_Pregnancy III Student 2023.pptx Flashcards
What is the purpose of antepartum fetal assessment?
Identifies individuals at risk for abnormality. first screening, then diagnostic testing if indicated.
What are false positives and false negatives in screening?
Incorrectly identifying individuals as at risk or not at risk
What is the difference between screening and diagnostic testing?
Screening identifies risk while diagnostic testing gives a precise diagnosis. screening is done first before diagnostic testing.
What is chorionic villus sampling used for?
Precise test for a given condition, it is a diagnostic test
What is amniocentesis used for?
Diagnostic testing during pregnancy
What is the purpose of screenings?
To look for abnormalities
What are some examples of abnormalities that screenings can detect?
Trisomy 21
What is the drawback of screenings?
False positives and false negatives
What is the recommended course of action if someone comes back with a positive result from a screening?
Encouraged to do diagnostic testing, which is much more accurate
What is the main difference between screenings and diagnostic testing?
Screening is done by everyone, diagnostic testing is not
What can ultrasound obtain real-time images of?
Maternal structures, placenta, amniotic fluid, and fetus
What can ultrasound do when paused?
Take fetal measurements or obtain closer images of specific structures
What are the different types of ultrasound?
2D, 3D, or 4D
What are the two types of ultrasound for examining the structures like the heart?
Transabdominal and transvaginal
When is transvaginal ultrasound usually used?
At 8-10 weeks of gestation and is used to confirm pregnancy (bc its harder to get it from the abdomen).
What is the purpose of transvaginal ultrasound during pregnancy?
To confirm pregnancy
Which trimester is the 1st ultrasound performed in?
First trimester. around week 8-10.
Which trimester is the 2nd ultrasound performed in?
Second trimester
What is the purpose of first trimester ultrasonography?
Confirm pregnancy, verify location, identify multiple gestations, determine gestational age, identify markers, determine locations of uterus, cervix, and placenta
What is the procedure for first trimester ultrasonography?
Transvaginal
What is the biggest thing ultrasound is used for?
Confirm pregnancy
At what gestational age can the embryo be seen on ultrasound at the earliest?
5-6 weeks
What does the heart rate on ultrasound indicate? At what gestational age is the fetal heart rate visible on ultrasound?
Health
What is the most accurate measure of gestational age?
the first trimester ultrasound