Antenatal and Postnatal Screening
What does antenatal and postnatal screening allow for? - Answer-To monitor the health
of the mother, developing fetus and baby
What does antenatal screening do? - Answer-Identifies the risk of a disorder so that
further tests and a prenatal diagnosis can be offered
LIsts types of antenatal care - Answer-Blood and blood pressure tests
Urine tests
Blood type
Weight/height
List antenatal screening tests - Answer-Ultrasound scans, biochemical marker tests
Two types of antenatal ultrasound scans - Answer-Dating scan, anomaly scan
Dating scan - Answer-Used to determine pregnancy stage and due date, carried out at
8-14 weeks
Anomaly scan - Answer-Used to detect serious physical abnormalities in the fetus,
carried out at 18-20 weeks
Describe biochemical marker tests - Answer-Routine blood and urine tests carried out
throughout pregnancy to monitor the concentrations of marker chemicals, which can
lead to diagnostic testing to determine if a fetus has a medical condition
How can a biochemical marker test lead to a false positive - Answer-Measuring a
chemical at the wrong time
List antenatal diagnostic tests - Answer-Amniocentesis, Chorionic villus sampling
Amniocentesis procedure - Answer-When a sample of amniotic fluid is used to produce
a karyotype
CVS procedure - Answer-When a sample of chorionic villi from the placenta is used to
produce a karyotype
Advantages/disadvantages of amniocentesis - Answer-Lower risk of miscarriage,
carried out later in pregnancy
Advantages/disadvantages of CVS - Answer-Carried out earlier in pregnancy, higher
risk of miscarriage
What does antenatal and postnatal screening allow for? - Answer-To monitor the health
of the mother, developing fetus and baby
What does antenatal screening do? - Answer-Identifies the risk of a disorder so that
further tests and a prenatal diagnosis can be offered
LIsts types of antenatal care - Answer-Blood and blood pressure tests
Urine tests
Blood type
Weight/height
List antenatal screening tests - Answer-Ultrasound scans, biochemical marker tests
Two types of antenatal ultrasound scans - Answer-Dating scan, anomaly scan
Dating scan - Answer-Used to determine pregnancy stage and due date, carried out at
8-14 weeks
Anomaly scan - Answer-Used to detect serious physical abnormalities in the fetus,
carried out at 18-20 weeks
Describe biochemical marker tests - Answer-Routine blood and urine tests carried out
throughout pregnancy to monitor the concentrations of marker chemicals, which can
lead to diagnostic testing to determine if a fetus has a medical condition
How can a biochemical marker test lead to a false positive - Answer-Measuring a
chemical at the wrong time
List antenatal diagnostic tests - Answer-Amniocentesis, Chorionic villus sampling
Amniocentesis procedure - Answer-When a sample of amniotic fluid is used to produce
a karyotype
CVS procedure - Answer-When a sample of chorionic villi from the placenta is used to
produce a karyotype
Advantages/disadvantages of amniocentesis - Answer-Lower risk of miscarriage,
carried out later in pregnancy
Advantages/disadvantages of CVS - Answer-Carried out earlier in pregnancy, higher
risk of miscarriage
