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Phosphatidylglycerol,Amniotic
Test Code012799
Alias/See Also
PG, Amniotic Fluid
CPT Codes
84081
Preferred Specimen
Amniotic fluid, FROZEN
Minimum Volume
0.2 mL
Instructions
Centrifuge fluid at low speed (500xg) for three minutes. Carefully pour off the supernatant into a labeled transport tube. Discard the original tube and pellet. NOTE: Any prolonged centrifugation step can reduce recovery of the phospholipids to <50%. Amniotic fluid contaminated with blood meconium or vaginal secretion CAN be used for a PG determination but NOT L:S ratio. To avoid delays in turnaround time when requesting multiple tests on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED.
Transport Container
Plastic transport tube
Transport Temperature
FREEZE within one hour to transport to laboratory. Avoid repeat freezing and thawing of the specimen, which may cause the sample to precipitate, resulting in a lower than expected value. Stability: Room Temperature: up to 1 hour Refrigerated:
Specimen Stability
Room Temperature: up to 1 hour; Refrigerated: up to 4 hours; Frozen: up to 1 week
Methodology
Immunologic agglutination
Setup Schedule
Daily 1st and 3rd shift
