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Cardio IQ® Direct LDL
Test Code91723
CPT Codes
83721
Preferred Specimen
1 mL serum
Patient Preparation
If a Direct LDL-cholesterol measurement is to be performed along with triglycerides, but not part of a lipid panel, then the patient should be fasting 9-12 hours prior to collection. If the Direct LDL cholesterol is ordered along with a lipid panel, then a fasting sample is not required.
Minimum Volume
0.5 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 6 days
Refrigerated: 7 days
Frozen: 31 days
Refrigerated: 7 days
Frozen: 31 days
Methodology
Enzymatic (E)
Setup Schedule
Set up: Daily; Report available: Next day
Reference Range
<20 years: <110 mg/dL
≥ 20 years: <100 mg/dL
≥ 20 years: <100 mg/dL
Clinical Significance
LDL Cholesterol is referred to as the ''bad'' cholesterol. Interpretive ranges are based on the guidelines of the National Cholesterol Education Program (NCEP).
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153