Washington Administrative Code
Title 246 - Health, Department of
LABORATORY
Chapter 246-680 - Prenatal tests - Congenital and heritable disorders
Section 246-680-010 - Definitions

Universal Citation: WA Admin Code 246-680-010

Current through Register Vol. 24-18, September 15, 2024

The definitions in this section apply throughout this chapter unless the context clearly requires otherwise:

(1) "Amniocentesis" means a procedure to remove a small amount of amniotic fluid from the uterus of a pregnant person in order to perform one or more of the following laboratory tests:

(a) Measure the level of alpha-fetoprotein;

(b) Measure the level of acetylcholinesterase;

(c) Cytogenetic studies on fetal cells including chromosome analysis, cytogenomic microarray analysis (CMA), and fluorescent in-situ hybridization (FISH);

(d) Biochemical studies on fetal cells or amniotic fluid;

(e) Deoxyribonucleic acid (DNA) studies on fetal cells for single gene disorders or fetal genotyping for isoimmunization studies; and

(f) Infectious disease studies.

(2) "Carrier screening" means a procedure to remove blood or other tissue from one or both parents in order to perform laboratory analysis to establish chromosome constitution or recessive or X-linked genetic carrier status of the parents.

(3) "Chorionic villus sampling" means a procedure to remove a small number of cells from the developing placenta, in order to perform one or more of the following laboratory tests:

(a) Cytogenetic studies on fetal cells including chromosome analysis, cytogenomic microarray analysis (CMA), and fluorescent in-situ hybridization (FISH);

(b) Biochemical studies on placental cells; and

(c) DNA studies on placental cells for single gene disorders.

(4) "Hepatitis B surface antigen (HBsAg) screening" means a procedure involving obtaining blood from a pregnant person to test for maternal hepatitis B infection.

(5) "Maternal serum marker screening" means a procedure involving obtaining blood from a pregnant person in order to measure through laboratory tests the level of certain products that are associated with increased risks to the fetus or pregnancy such as alpha-fetoprotein, unconjugated estriol, human gonadotropin, inhibin, or PAPP-A.

(6) "Percutaneous umbilical blood sampling" means a procedure to obtain blood from the fetus, in order to perform one or more of the following laboratory tests:

(a) Cytogenetic studies on fetal cells including chromosome analysis, cytogenomic microarray analysis (CMA), and fluorescent in-situ hybridization (FISH);

(b) Viral titer studies;

(c) Fetal blood typing for isoimmunization studies;

(d) Prenatal diagnostic tests for hematological disorders;

(e) DNA studies on fetal cells for single gene disorders; and

(f) Biochemical studies on fetal blood.

(7) "Postprocedure genetic counseling" means individual counseling that may be part of another procedure, or service involving a health care provider and a pregnant person with or without other family members, to discuss the results of the prenatal tests done, any further testing or procedures available or referrals for further consultation or counseling.

(8) "Prenatal cell free DNA screening," sometimes called noninvasive prenatal screening, means drawing blood from the pregnant person to perform laboratory analysis on the cell free DNA circulating in the maternal blood stream.

(9) "Prenatal test" means any test or procedure to screen for or diagnose congenital or heritable disorders of a fetus.

(10) "Prenatal ultrasonography " means a procedure resulting in visualization of the uterus, the placenta, the fetus, and internal structures through use of sound waves.

(11) "Preprocedure genetic counseling" means individual counseling that may be part of another procedure, or service, involving a health care provider and a pregnant person with or without other family members, to assess and identify increased risks for congenital abnormalities or pregnancy complications, offer specific carrier screening or diagnostic tests, discuss the purposes, risks, accuracy, and limitations of a prenatal testing procedure, aid in decision making and to assist, when necessary, in obtaining the desired testing or procedure.

Statutory Authority: RCW 48.21.244, 48.44.344, 48.46.375, 70.54.220. 03-11-031, § 246-680-010, filed 5/15/03, effective 6/15/03. Statutory Authority: RCW 43.20.050. 91-02-051 (Order 124B), recodified as § 246-680-010, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW 48.21.244, 48.44.344 and 48.46.375. 90-02-094 (Order 024), § 248-106-010, filed 1/3/90, effective 2/3/90.

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