Test code: 763
CPT code(s): 85790
Methodology: Photo-Optical Clot Detection
Clinical Significance: The aPTT is a screening test that will detect deficiencies or inhibitors to the intrinsic (Factors VIII, IX, XI and XII) and common (Factors II, V, X and fibrinogen) pathway coagulation factors.
Test Code: 593
CPT Code(s): 83615
Methodology: Spectrophotometry (SP)
Clinical Significance: Elevations in serum lactate dehydrogenase occur from myocardial infarction, liver disease, pernicious and megaloblastic anemia, pulmonary emboli, malignancies, and muscular dystrophy. Since lactic dehydrogenase is present in many body tissues, it's diagnosis usefulness is limited. Tissue specificity may be enhanced by isoenzyme analysis.
Wall Charts can be ordered by emailing DLOClientSupply@questdiagnostics.com or you can download/print the chart by clicking on the disc or printer icon above the chart below:
LIPID PANEL WITH RELFEX TO DIRECT HDL
Test Code: 14852
CPT Code(s): 80061
Includes: Total Cholesterol, HDL Cholesterol, Triglycerides, LDL-Cholesterol (calculated), Cholesterol/HDL Ratio (calculated). If Triglyceride result is >400 mg/dL, Direct LDL will be performed at an additional charge (CPT code(s): 83721).
Methodology: Spectrophotometry (SP)
Alternative Name(s): Cholesterol, HDL, Fasting Lipids, LDL
Test Code: 6399
Wall Charts can be ordered by emailing DLOClientSupply@questdiagnostics.com or you can download/print the chart by clicking on the disc or printer icon above the chart below:
Test Code: 59221
CPT Code(s): 82550, 82553
Methodology: N-acetyl-L-cysteine (NAC) and Immunoassay followed by ratio determination
Includes: Creatine Kinase total, CK-MB, CK-MB Index
Test Name: Troponin I, High Sensitivity; former test name Troponin I *updated 03.02.2026
Alternative Name(s): Troponin HS, High Sensitivity, hsTnl
Test Code: 34693; former test code 59039 *updated 03.02.2026
CPT Code(s): 84484
Methodology: Chemiluminescent Microparticle Immunoassay (CMIA)
Test Code: 4420
CPT Code(s): 86140
Methodology: Nephelometry
Limitations: Oral contraceptives, IUDs, pregnancy, and menstruation may raise CRP levels. Levels are lowest during ovulation.
Test Code: 374
CPT Code(s): 82550
Methodology: Spectrophotometry (SP)
Clinical Significance: Test for myocardial infarction and skeletal muscle damage. Elevated results may be due to: myocarditis, myocardial infarction (heart attack), muscular dystrophy, muscle trauma or excessive exercise.
Alternative Name(s): CK, CPK
