Lab Test

Acetylcholinesterase, Amniotic Fluid

Test Codes

MAYO: ACHE_, EPIC: LAB7581, Beaker:
NOTE: Not orderable individually. Reflex test for AFP, Amniotic Fluid (LAB5798) 

Department

Send Outs

Specimen Collection Criteria

Collect: Amniotic fluid from 14-18 week gestational period

Also Acceptable: Amniotic fluid from 14-21 week gestational period

Send specimen for processing immediately after collection. 

Physician Office/Draw Specimen Preparation

Maintain fluid specimen refrigerated (2-8°C or 36-46°F) prior to transport.

Preparation for Courier Transport

Transport: 1.0 mL fluid, refrigerated (2-8°C or 36-46°F). (Minimum: 0.3mL)

Rejection Criteria

Specimens not collected and processed as indicated.

In-Lab Processing

Maintain fluid specimen refrigerated (2-8°C or 36-46°F) prior to transport.

Transport: 1.0 mL fluid, refrigerated (2-8°C or 36-46°F). (Minimum: 0.3 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 14 days
Refrigerated (2-8°C or 36-46°F): 1 year
Frozen (-20°C/-4°F or below): 1 year

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mayo Medical Laboratories, Rochester, MN.

Performed

Thursday.
Results available in 9-16 days.

Reference Range

By report

Test Methodology

Polyacrylamide Electrophoresis.

Interpretation

By report.

Clinical Utility

Diagnosing open neural tube defects and, to a lesser degree, ventral wall defects.

CPT Codes

82013
LOINC:  30106-9

Contacts

Last Updated

5/3/2022

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