Test Overview

Test Methodology

Immunoenzymatic Assay

Test Usage

Screening for open neural tube defects or other fetal abnormalities. Follow-up testing for patients with elevated serum alpha-fetoprotein results or in conjunction with cytogenetic testing.

Reference Range*

< or = 2.0 multiples of median (MoM)

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Days Test Performed

Monday - Friday

Analytic Time

3 - 5 days

Soft Order Code

AFPA

Synonyms

Synonyms

AFP, Amniotic Fluid
Amniotic Fluid AFP (AFAFP)
MULTIPLE OF THE MEDIAN, AMNIO
AFP AMNIOTIC FLUID
AFPF
MOM
ALPHA FETOPROTEIN, AMNIOTIC
MULTIPLE OF THE MEDIAN

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Laboratory

Sendout

Laboratory Reference

Mayo AFPA (9950)

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Specimen Requirements

Normal Volume

1 mL amniotic fluid

Minimum Volume

0.5 mL amniotic fluid

Additional Information

The College of American Pathologists (CAP) requires that acetylcholinesterase (AChE) testing be performed on ALL amniotic fluids having elevated AFAFP concentrations. If alpha fetoprotein is positive, acetylcholinesterase testing will be performed at an additional charge (order code ACHE). By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Test sent to Mayo Medical Laboratories.

Billing Information

Fee Codes


CPT Code

82106

LOINC

Z256-8

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