Lamellar Body Count
| Amniotic fluid lamellar body counts, LBC | |
| Core Laboratory & Transfusion Medicine | |
| Hematology | |
| Fluid | |
|
LBCNT
|
Special Lab Requisition (MS 331)
Lamellar bodies are concentrically-layered structures produced by Type II pneumocytes. They consist almost entirely of phospholipids and represent the storage form of pulmonary
surfactant.
As the fetal lung matures, increased lamellar body production is reflected by an increase in amniotic fluid (AF) phospholipids and the L/S (lecithin-sphingomyelin) ratio.
The lamellar body count is obtained by analyzing the AF sample with a cell counter and recording the platelet count.
surfactant.
As the fetal lung matures, increased lamellar body production is reflected by an increase in amniotic fluid (AF) phospholipids and the L/S (lecithin-sphingomyelin) ratio.
The lamellar body count is obtained by analyzing the AF sample with a cell counter and recording the platelet count.
Amniotic Fluid
1-5 mL
Room Temperature: N/A
Fridge: N/A
Freezer: N/A
Must be sent to lab immediately for processing
24 hours at room temperature
Automated
24 hours, 7 days/week.
1 hour
2 hours
Lamellar Body Count <15 x 10E9/L:
Low range
Lamellar Body Count 15 to 40 x 10E9/L:
Moderate range
Lamellar Body Count >40 x 10E9/L:
High Range-probably mature fetal lung. In case of discrepancies, always interpret results using reference ranges as stated on laboratory reports and/or electronic patient chart.
Low range
Lamellar Body Count 15 to 40 x 10E9/L:
Moderate range
Lamellar Body Count >40 x 10E9/L:
High Range-probably mature fetal lung. In case of discrepancies, always interpret results using reference ranges as stated on laboratory reports and/or electronic patient chart.
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