Special Communication
Test Changes – Oxidized Low-Density-Lipoprotein (OXLDL) & Lipoprotein-associated Phospholipase A2 Activity (PLAA2)
Effective March 18, 2025.
Starting March 18, 2025, Oxidized Low-Density-Lipoprotein (OXLDL) & Lipoprotein-associated Phospholipase A2 Activity (PLAA2) will be sent to a different performing reference laboratory (LabCorp).
Refer to the table below for an outline of testing changes.
Please contact Client Services with any questions or for assistance.
Test Change Overview
Lipoprotein-associated Phospholipase A2 Activity (Lp-PLA2 Activity) (PLAA2)
New Test
Old Test
Performing Laboratory
LabCorp
Cleveland HeartLab
Methodology
Spectrophotometric/Enzymatic assay
Enzymatic assay
Specimen Collection
Serum, 0.5 mL
Gold Serum Separation Tube (SST)
Serum
Minimum Volume
0.2 mL
0.5 mL
Transport Temperature
Refrigerated
Refrigerated
Reference Interval
<225 nmol/min/mL
≤123 nmol/min/mL
Please note the change in units and reference interval.
Turnaround Time
3-5 days
4-5 days
Oxidized Low-Density-Lipoprotein (OXLDL)
New Test
Old Test
Performing Laboratory
LabCorp
Cleveland HeartLab
Methodology
Enzyme-Linked Immunosorbent Assay (ELISA)
Enzyme-Linked Immunosorbent Assay (ELISA)
Specimen Collection
Plasma, 0.5 mL
Lavender K2EDTA Tube
Plasma
Lavender K2EDTA Tube
Minimum Volume
0.2 mL
0.2 mL
Transport Temperature
Critical frozen
Refrigerated
Reference Interval
10-170 ng/mL
<60 U/L
Please note the change in units and reference interval.
Turnaround Time
4-6 days
2-6 days