N3280 Screening Tests An Assessments. Exam 2025 Questions And Answers

N3280 Screening Tests An Assessments.
Exam 2025 Questions And Answers




Assessment of of fetal well-being in 1st trimester - ANS -confirm pregnancy
-confirm viability
-determine gestational age
-detect fetal anomalies



is transvaginal or transabdominal ultrasonography bettwe - ANS transvaginal has better and
clearer images



transvaginal ultrasound - ANS -detects gestational sac at 4-5 weeks
-fetal heart activity at 6-7 weeks
-BPD measurement and crown length at 14 weeks predicts EDB within 7-10 days



transabdominal ultrasound - ANS -fetal heart beat at 10-12 weeks
-fetal weight during pregnancy



screening and diagnostic tests for first trimester - ANS -ultrasound
-nuchal translucency
-maternal assays
-chorionic villus sampling


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, maternal assays - ANS -coombs' test
-cell-free (DNA) screening



nuchal translucency - ANS measure nuchal folds (accumulation of fluids)



when to screen for nuchal translucency - ANS between 10-14 weeks



positive nuchal translucency - ANS >3mm



coombs' test - ANS -Rh incompatibility
-detects other antibodies for incompatibility with maternal antigens



cell-free DNA screening - ANS -fetal Rh status
-fetal gender



newest screening test for noninvasive prenatal genetic diagnosis - ANS cell free DNA
screening



chorionic villus sampling - ANS -earlier diagnosis and rapid results
-removal of small tissue specimen from fetal portion of placenta (tissue reflects fetus genetic
makeup)



when to do chorionic villus sampling - ANS between 10-13 weeks



where do chorionic villi originate - ANS zygote




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