Lamellar Body Count

• CPT Code: 83664
• LOINC: 9354-2
• Specimen Type: amniotic fluid
• Frequency: Setup: daily
• Instructions: 4.0mL Amniotic fld (Min 1.0mL) Do not centrifuge or freeze. No visible blood, meconium or mucus acceptable.
• Text: Useful for predicting fetal lung maturity and assessing the risk of developing neonatal respiratory distress syndrome, when performed during 32 to 39 weeks gestation. Surfactant secretion into the amniotic fluid prior to 32 weeks is minimal, testing is not indicated beyond week 39.
• Methodology: Sysmex Platelet Count by Impedance Method Order ZG747 for specimens contaminated with blood or meconium.