Total; HDL Cholesterol; Cholesterol/HDL Ratio (calculated)

Primary unit: Ratio
LOINC codes: 2085-9, 2093-3, 9830-1
Tests that measure Total; HDL Cholesterol; Cholesterol/HDL Ratio (calculated): Quest Diagnostics 1

Ranges

Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ

Quest Diagnostics, Cholesterol and HDL Cholesterol with Ratio 7432

Total Cholesterol	Male (mg/dL)	Female (mg/dL)
<20 Years	<170	<170
≥20 Years	<200	<200
HDL Cholesterol
<20 Years	>45	>45
≥20 Years	≥40	≥50
Cholesterol/HDL Ratio (Calc)	<5.0	<5.0

Quest Diagnostics test catalog, 7432

Tests

Check the catalog code, specimen, method and preparation for every test that measures Total; HDL Cholesterol; Cholesterol/HDL Ratio (calculated). Select up to five tests to compare them side by side.

Quest Diagnostics 1 test

Panels that include this biomarker

Cholesterol and HDL Cholesterol with Ratio 7432
3 analytes · Serum · Fasting not stated
Method and collection
Method
Spectrophotometry (SP)
Preparation
If a cholesterol measurement is to be performed along with triglycerides, the patient should be fasting 9-12 hours prior to collection. The assay manufacturer Beckman Coulter advises: "N-Acetyl Cysteine (NAC), when administered in therapeutic concentrations (for the treatment of acetaminophen overdose), has been. . . determined to interfere with assays for. . . cholesterol, uric acid" where "NAC interference may lead to falsely low results." According to Beckman Coulter, the NAC interference should be insignificant by 12 hours after completion of the initial loading dose of an IV infusion treatment regimen consisting of an initial loading dose of 150 mg/kg administered over 1 hour, a second dose of 50 mg/kg administered over 4 hrs and a third dose of 100 mg/kg administered over 16 hrs.
Collection
Centrifuge within 30-60 minutes following collection
Quest Diagnostics catalog page

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Sources

Quest Diagnostics test catalog
1 test: codes, specimens, methods, preparation and reference intervals.
LOINC 2085-9, 2093-3, 9830-1
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for Total; HDL Cholesterol; Cholesterol/HDL Ratio (calculated)
Registered studies that measure Total; HDL Cholesterol; Cholesterol/HDL Ratio (calculated), on the U.S. National Library of Medicine registry.

Verify these ranges and sources

We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.

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