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Cardio IQ® Lipoprotein Fractionation, Ion Mobility
Test Code91604
CPT Codes
83704
Includes
LDL Particle Number
LDL Small
LDL Medium
HDL Large
LDL Pattern
LDL Peak Size
LDL Small
LDL Medium
HDL Large
LDL Pattern
LDL Peak Size
Preferred Specimen
1 mL serum
Patient Preparation
Fasting preferred, but not required
Minimum Volume
0.25 mL
Transport Container
Transport tube
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 24 hours
Refrigerated: 10 days
Frozen -20° C: 28 days
Frozen -70° C: 167 days
Refrigerated: 10 days
Frozen -20° C: 28 days
Frozen -70° C: 167 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Gross lipemia
Methodology
Ion Mobility
Setup Schedule
Set up: Daily; Report available: 3-4 days
Reference Range
See Laboratory Report
Clinical Significance
There is a correlation between increased risk of premature heart disease with decreasing size of LDL particles. Ion mobility offers the only direct measurement of lipoprotein particle size and concentration for each lipoprotein from HDL3 to large VLDL.
