Unit Code 9287:
Acetylcholinesterase, Amniotic Fluid (AChE-AF), Amniotic Fluid
Specimen Required
1 mL of amniotic fluid. Do not centrifuge. Send specimen
refrigerated. A specimen from the 16 to 18 week gestational period
of pregnancy is preferred. Amniotic fluid from the 14 to 21 week
gestational period is acceptable.
Note: 1. Gestational age is required on request form for
processing.
2. If chromosome studies are also requested, see
#8426 "Chromosome Analysis, Amniotic Fluid." The
specimen for AChE testing, when requested with
chromosome analysis, cannot be frozen.
3. If ordering electronically, please complete and submit
a "MayoConnect Additional Test Information Form"
(Supply T357 or see Special Instructions) with the specimen.
If not ordering electronically, please complete and submit
a "Cytogenetics/AFP Congenital Disorders Request Form"
(Supply T238) with the specimen.
Transport Temperature
Refrig\Ambient <96 hours OK\Frozen OK
Reject Due To
Specimens Other Than: Amniotic fluid
Anticoagulants Other Than: NA
Hemolysis: No
Thawing: NA
Lipemia: NA
Day(s) and Time(s) Test Performed
Tuesday; Thursday 8:00 a.m. (not reported on Saturday and Sunday)


