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A nuchal scan or nuchal translucency (NT) scan/procedure is a sonographic prenatal screening scan to detect chromosomal abnormalities in a fetus, though altered extracellular matrix composition and limited lymphatic drainage can also be detected.
Nuchal translucency ultrasound & blood prick/draw ~1 week Chromosomal abnormalities, birth defects, heart defects Very low risk, however there is the potential for bruising, pain, nerve damage, fainting, haematoma, bacterial infection, and bloodborne pathogen exposure.
Perhaps the most common such test uses a measurement of the nuchal translucency thickness ("NT-test", or "Nuchal Scan"). Although 91% of fetuses affected by Down syndrome exhibit this defect, 5% of fetuses flagged by the test do not have Down syndrome. Ultrasound may also detect fetal organ anomaly.
In the first trimester, cystic hygroma and thickened nuchal translucency may be observed. Macrosomia, macrocephaly, enlarged kidneys, macroglossia, cardiac abnormalities, and visceromegaly may become evident by the second and third trimesters. [1] [3] Polyhydramnios is frequently observed. [2]
nuchal translucency NTBS: needs to be seen NTD: neural tube defect NTG: nitroglycerin: n/t: numbness and tingling NTP: Nortriptyline: NTS: nucleus tractus solitarii, or Solitary nucleus: NTT: nasotracheal tube (see intubation) NTX: N-telopeptide nu in each nostril N&V n/v: nausea and vomiting: NVD: normal vaginal delivery (see childbirth ...
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A nuchal cord is when the umbilical cord becomes wrapped around the fetus's neck. [1] Symptoms present in the baby shortly after birth from a prior nuchal cord may include duskiness of face, facial petechia , and bleeding in the whites of the eye . [ 1 ]