Notes in Prenatal Screening

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Status	Last Update	Fields
Published	03/15/2025	What is the purpose of prenatal screening?
Published	03/15/2025	At what gestational age is the dating ultrasound typically performed?
Published	03/15/2025	At what gestational age is the anomaly ultrasound typically performed?
Published	03/15/2025	What percentage of women attending an early pregnancy dating scan will have miscarried?
Published	03/15/2025	What are the two components of the combined screening test for Down Syndrome, Edward Syndrome, and Patau Syndrome?
Published	03/15/2025	What is the primary measurement taken during a Nuchal Translucency (NT) Scan?
Published	03/15/2025	What is the main difference between the combined screening test and the quadruple screening test?
Published	03/15/2025	At what gestational age is the quadruple screening test performed?
Published	03/15/2025	What is considered a "higher chance" result in prenatal screening?
Published	03/15/2025	What is the sensitivity and specificity of NIPT for Trisomy 21?
Published	03/15/2025	What is the risk of miscarriage for invasive diagnostic tests like CVS and amniocentesis?
Published	03/15/2025	What is the term for an error in chromosome separation during meiosis?
Published	03/15/2025	What is the difference between aneuploidy and triploidy?
Published	03/15/2025	Which trisomy is the most common and compatible with life?
Published	03/15/2025	What percentage of Down syndrome cases are due to non-disjunction?
Published	03/15/2025	What is the approximate incidence of Down syndrome in live births?
Published	03/15/2025	Which of the following conditions are screened for during pregnancy? (Multiple choices)
Published	03/15/2025	What happens if a mother is found to be a carrier of sickle cell or thalassaemia?
Published	03/15/2025	Why does NICE recommend using a dating scan instead of LMP (Last Menstrual Period) for gestational dating?
Published	03/15/2025	Which of the following conditions can be diagnosed during the dating scan? (Multiple choices)
Published	03/15/2025	Which of the following factors can influence the results of the combined screening test?
Published	03/15/2025	Which of the following markers are assessed in the quadruple test? (Multiple choices)
Published	03/15/2025	What is the primary advantage of NIPT over other screening methods?
Published	03/15/2025	What happens in chromosome non-disjunction?
Published	03/15/2025	Which of the following conditions result from autosomal trisomy? (Multiple choices)
Published	03/15/2025	Which of the following characteristics are typical of Down syndrome?
Published	03/15/2025	Place the following steps in the correct order for prenatal screening for haemoglobinopathies:
Published	03/15/2025	Place the following steps in order for the first-trimester combined screening test:
Published	03/15/2025	Place the following diagnostic and screening tests in the correct chronological order of when they can be performed:
Published	03/15/2025	Place the following causes of Down syndrome in order from most to least common:
Published	03/15/2025	True or false: prenatal screening 1
Published	03/15/2025	True or false: prenatal screening 2
Published	03/15/2025	Match the screening type with its purpose.
Published	03/15/2025	Match the screening type with its function.
Published	03/15/2025	Match the screening/diagnostic test with its characteristics.
Published	03/15/2025	Match the trisomy disorder with its main clinical features.
Published	03/15/2025	HIV \| Hepatitis B \| Syphilis
Published	03/15/2025	Beta hCG \| PAPP-A \| Nuchal translucency
Published	03/15/2025	Open spinal defect \| Absence of brain/skull \| Abdominal organs outside body \| Failure of diaphragm formation \| Severe skeletal abnormalities \| Severe …
Published	03/15/2025	Flat face \| Single palm crease \| Brushfield spots \| Hypotonia
Published	03/15/2025	Haemolytic disease of the newborn occurs when an Rh- mother develops antibodies against a second Rh+ baby’s [red] blood cells, potentially causing ana…
Published	03/15/2025	The [quadruple] screening test is performed between 14 and 20 weeks and screens only for Trisomy [21]. It measures alpha-fetoprotein (AFP), beta hCG, …
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