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LBC With Rflx to PG, Amniotic
Test Code120684
Alias/See Also
FLM; LBC; PG
CPT Codes
83664
Preferred Specimen
LBC: Amniotic fluid PG: Amniotic fluid, FROZEN
Minimum Volume
LBC: 1 mL; PG: 0.2 mL
Instructions
LBC: Amniotic fluid is obtained by needle aspiration into the amniotic sac(amniocentesis). Do NOT centrifuge. Do NOT vortex. Do NOT freeze. NOTE: When LBC is ordered in panels or additional testing for the amniotic fluid is requested, special care must be
Transport Container
LBC: Sterile container, no additive; PG: Plastic transport tube
Transport Temperature
LBC: Refrigerate specimen upon collection. Do NOT freeze. Do NOT centrifuge. Do NOT vortex. PG: FREEZE within one hour to transport to laboratory. Avoid repeated freezing and thawing of the specimen, which may cause the sample to precipitate, resulting in
Specimen Stability
Room temp:LBC: up to 72 hours; PG: up to 1 hour Refrigerated: LBC: up to 14 days; PG: up to 4 hours Frozen: LBC: UNSTABLE; PG: up to 1 week
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
LBC: Frozen samples; bloody (RBC value >0.02 x 10E6/uL) or contaminated samples; large, gelatinous object(s) that will not aspirate; vaginal pools containing mucus; centrifuged specimens; vortexed specimens; specimens containing meconium; room temperatur
Methodology
LBC: Optical impedance; PG: Immunologic agglutination
