Collection Medium:

Alternate
Collection Media:

Call laboratory for additional acceptable specimen collection 
containers.

Minimum:

1 mL; amniotic fluid obtained by amniocentesis.

Testing
Schedule:

0700-2200 Monday through Friday, including holidays.

Analytic Time:

2 hours (upon receipt in laboratory)

Comments:

If gestational age in weeks is given, a Liley Zone interpretation is 
reported.

Methodology:

Spectrophotometric

Sample
Processing:

Label transport tube with two patient identifiers, date and time of 
collection.
Protect specimen from light.
Do Not Centrifuge.

Sample
Storage:

Ambient or Room Temperature.
Protect specimen from light.

Transport
Instructions:

Place specimen into zip-lock type bag, seal bag.
Place requisition into outside pocket of bag.
Ship at ambient or room temperature.

Instructions:

A minimum of 1 mL of amniotic fluid is required.

CPT Code:

82143