Test directory: AChE-Reflex To HbF, Amniotic

Ordering Code8330
Test NameAChE-Reflex To HbF, Amniotic
AliasAChE
Amniotic Fluid With Reflex to Hb F
Preferred SpecimenAmniotic fluid
Preferred ContainerSterile plastic conical tube; do NOT use urine containers or tubes with rubber stoppers. Rubber is toxic to amniocytes.
Optimum Volume3 mL
Collection InstructionsAvoid 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 InstructionsThe 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 RequirementsOahu: Ambient
Airline: Ambient
Rejection CriteriaSpecimen found not to be amniotic fluid, Gross contamination of amniotic fluid with maternal or fetal blood, Quantity not sufficient for analysis
Avail. StatNO
Analytic Time8 - 14 Days
MethodologyAcrylamide 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 November 21, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
AcetylcholinesteraseALLSee report.
ACHEALLSee report.
Fetal Hemoglobin TestingALLSee report.
InterpretationALLSee report.