Test directory: AChE-Reflex To HbF, Amniotic

Ordering Code 8330
Test Name AChE-Reflex To HbF, Amniotic
Alias AChE
Amniotic Fluid With Reflex to Hb F
Preferred Specimen Amniotic fluid
Preferred Container Sterile plastic conical tube; do NOT use urine containers or tubes with rubber stoppers. Rubber is toxic to amniocytes.
Optimum Volume 3 mL
Collection Instructions Avoid contamination of amniotic fluid with maternal or fetal blood. As little as one drop of fetal blood can cause false- positive results during assay of amniotic fluid. Amniotic fluid should be collected by the attending physician.
Handling Instructions The patient's gestational age must be at least 13 weeks for accurate AChE detection. Optimal gestational age is 14 to 18 weeks. Include the gestational age by ultrasound and/or last menstrual period (LMP) on the request form.
Transport Requirements Oahu: Ambient
Airline: Ambient
Rejection Criteria Specimen found not to be amniotic fluid, Gross contamination of amniotic fluid with maternal or fetal blood, Quantity not sufficient for analysis
Avail. Stat NO
Analytic Time 8 - 14 Days
Methodology Acrylamide gel electrophoresis; isoelectric focusing (IEF)
Reference Lab  Esoterix Genetic Laboratories, LLC

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Acetylcholinesterase ALL See report.
ACHE ALL See report.
Fetal Hemoglobin Testing ALL See report.
Interpretation ALL See report.