Home
HelpTest Code 4011993 LDL Cholesterol (LDL Direct)
Specimen Requirements
1.0 mL serum or plasma
NOTE: Serum/plasma should be separated from
cells within 3 hours of collection
Container
PST (light green top) tube or SST (tiger, gold, or red top) tube
Minimum Volume
55 µL serum/plasma
Stability
24 hours at room temperature, 3 days at 2-8°C
May be frozen at -20°C for several weeks
Cause for Rejection
Improperly labeled sample
Analytical Time
Same day.
Sample Retention Time
7 days
Method
Photometry
CPT Code
83721
Performing Laboratory
Springfield Hospital Laboratory