Test Code LAB10596 Lamellar Body Count - Amniotic Fluid
Department
HEMATOLOGY
Collection Requirements
PROTECT FROM LIGHT.
Amniotic fluid from amniocentesis, collected by physician.
Primary Collection Container
Sterile Container
Transport
On ice, protected from light, delivered within 60 minutes.
Preferred Transport Temperature
Refrigerated
Processing
DO NOT CENTRIFUGE.
Deliver to Hematology ASAP/within 60 minutes.
Deliver remaining specimen to Chemistry for any additional testing.
Stability
Ambient: 1 hour
On ice: 4 hours
Minimum Testing Volume
1.0 mL
Reference Range
NEGATIVE: <16 K/cmm
TRANSITIONAL: 16-59 K/cmm
POSITIVE: >59 K/cmm
Methodology
Lamellar bodies counted on the platelet channel of the Sysmex XE-5000
Performed
Sunday – Saturday
Reported
As completed
CPT Codes
83664
Unacceptable Conditions
Specimen with visable blood (>2% HCT) or meconium is unacceptable.
Prolonged exposure to light is unacceptable.
Specimens with macroscopic clumping are unacceptable.
Specimens should not be frozen or centrifuged. Freezing and centrifuging the amniotic fluid falsely decreases the lamellar body count.