45270:LECITHIN/SPHINGOMYELIN RATIO & PHOSPHATIDYLGLYCEROL (L/S-PG)

Print View Attached Docs:
45270:LECITHIN/SPHINGOMYELIN RATIO & PHOSPHATIDYLGLYCEROL (L/S-PG)
Alias Names: L/S-PG SA
Methodology: Thin Layer Chromatography (TLC)
Edit Date: 1/3/2007
Performed: Daily at 1300 (STAT at 800)
Released: Results at 1700 (STAT at 1300)
CPT Code: 83661 / 84081
Specimen Collection Details
Collection: 5 mL amniotic fluid.
Handling: Centrifuge for 3 minutes at 1700 rpm (lower than routine centrifuging). Transfer supernatant to a plastic, screw-cap vial and label ”spun.” Refrigerate. Include additional clinical information on requisition, i.e., weeks gestation, is patient diabetic, source if not amniotic fluid, e.g., vaginal pool.
Standard Volume: 5 mL amniotic fluid.
Minimum Volume: 3.5 mL amniotic fluid.
Transport: Refrigerated.
Comments: Visible meconium or blood greater than 2% Hct may interfere with the L/S ratio.
Rejection Criteria: Mucoid samples too viscous to pipette.