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HelpTest Code LDLDIRECT LDL Cholesterol Direct, Plasma or Serum
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (lithium heparin) tube(s) or a plasma gel tube(s). Spin down and send 1 mL of lithium heparin plasma refrigerated. Avoid hemolysis.
Note: 1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL of serum refrigerated. Avoid hemolysis.
Note: 1. Indicate serum on request form.
2. Label specimen appropriately (serum).
Performing Laboratory
Conway Regional Clinical Laboratory ServicesReference Values
| Results | Interpretation |
| <100 mg/dL | Optimal |
| 100-129 mg/dL | Low risk |
| 130-159 mg/dL | Borderline high |
| 160-189 mg/dL | High |
| 190-1,000 mg/dL | Very high |