Screening And Diagnostic Tests Flashcards
Types of screening tests
Dating scan
Anomaly scan
Triple test
Non invasive prenatal test
Types of diagnostic tests
Chronic villus sampling CVS
amniocentesis
Dating scan
carried out around 10 weeks
See how far on the mother is
Can see if she’s expecting more than 1 baby
Can see any minor signs of conditions
See id the baby is developing properly and see if the baby is growing in the right space
Anomaly scan
Carried out 20 weeks
Can see sex of the baby
can check in detail the spinal cord,face,bones,heart,brain and kidneys
Carried out by sonographer
Can check for the 11 rare conditions
Nuchal fold translucency scan (NT)
Offered at 12 weeks
Test for Down’s syndrome
Sees chance of baby having Down’s syndrome
Measures thickness of fluid on back of babies neck
Triple test
Carried out at 10-14 weeks
Chance of having downs, Edward’s,pataus syndrome
Non invasive prenatal testing
Identifies downs, Edward’s, pataus syndrome
Can be carried out at 10 weeks
accurate test
Non invasive so doesn’t carry out risk of miscarriage
Normal blood test
Amniocentesis
Sample on amniotic fluid
Carried out 10-15 weeks
Needled into uterus and amniotic sac
Takes 10 mins
Carried out by obstetrician
Does have risk of miscarriage
Chronic villus sampling
Small sample of cells from placenta
Carried out 11-14 weeks
Risk of miscarriage Normal blood