Template:Prenatal Diagnosis terms: Difference between revisions
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* '''prenatal screening specificity''' - The probability of testing negative on a prenatal screening test if the congenital anomaly is absent. | * '''prenatal screening specificity''' - The probability of testing negative on a prenatal screening test if the congenital anomaly is absent. | ||
* '''single nucleotide polymorphisms''' - (SNPs) the variation in a single DNA nucleotide that occurs at a specific position in the genome. | * '''single nucleotide polymorphisms''' - (SNPs) the variation in a single DNA nucleotide that occurs at a specific position in the genome. | ||
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Revision as of 10:42, 15 June 2016
- cell-free fetal deoxyribonucleic acid - (cffDNA) refers to fetal DNA circulating and isolated from the plasma portion of maternal blood.
- false negative rate - The proportion of pregnancies that will test negative given that the congenital anomaly is present.
- false positive rate - The proportion of pregnancies that will test positive given that the congenital anomaly is absent.
- negative predictive value - The probability that a congenital anomaly is absent given that the prenatal screening test is negative.
- Non-Invasive Prenatal Testing - (NIPT) could refer to ultrasound or other imaging techniques, but more frequently used to describe analysis of cell-free fetal DNA circulating in maternal blood.
- positive predictive value - The probability that a congenital anomaly is present given that the prenatal screening test is positive.
- pre-implantation genetic diagnosis - (PGD, pre-implantation genetic screening) a diagnostic procedure for embryos produced through Assisted Reproductive Technology (ART or in vitro fertilisation, IVF) for genetic diseases that would generate developmental abnormalities or serious postnatal diseases.
- prenatal screening sensitivity - (detection rate) The probability of testing positive on a prenatal screening test if the congenital anomaly is present.
- prenatal screening specificity - The probability of testing negative on a prenatal screening test if the congenital anomaly is absent.
- single nucleotide polymorphisms - (SNPs) the variation in a single DNA nucleotide that occurs at a specific position in the genome.
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