Indirect calculated

Also listed as: total calcium, serum calcium, Indirect (calculated), ca
LOINC codes: 1968-7, 1971-1, 1975-2
Tests that measure Indirect 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, Bilirubin, Fractionated 7286

Population	Interval
Bilirubin, Total	Not stated
≤1 Day	≤5.1 mg/dL
2 Days	≤7.2 mg/dL
3-5 Days	≤10.3 mg/dL
6-7 Days	≤8.4 mg/dL
8-9 Days	≤6.5 mg/dL
10-11 Days	≤4.6 mg/dL
12-13 Days	≤2.7 mg/dL
14 Days - 9 Years	0.2-0.8 mg/dL
10-19 Years	0.2-1.1 mg/dL
≥20 Years	0.2-1.2 mg/dL
Bilirubin, Direct	≤0.2 mg/dL
Bilirubin, Indirect	Not stated
≤1 Day	≤5.1 mg/dL (calc)
2 Days	≤7.2 mg/dL (calc)
3-5 Days	≤10.3 mg/dL (calc)
6-7 Days	≤8.4 mg/dL (calc)
8-9 Days	≤6.5 mg/dL (calc)
10-11 Days	≤4.6 mg/dL (calc)
12-13 Days	≤2.7 mg/dL (calc)
14 Days - 9 Years	0.2-0.8 mg/dL (calc)
10-19 Years	0.2-1.1 mg/dL (calc)
≥20 Years	0.2-1.2 mg/dL (calc)

Quest Diagnostics test catalog, 7286

Tests

Check the catalog code, specimen, method and preparation for every test that measures Indirect calculated. Select up to five tests to compare them side by side.

Quest Diagnostics 1 test

Panels that include this biomarker

Bilirubin, Fractionated 7286
2 analytes · Serum · Fasting not stated
Method and collection
Method
Spectrophotometry (SP)
Collection
Protect from light. Avoid hemolysis.
Quest Diagnostics catalog page

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Sources

Quest Diagnostics test catalog
1 test: codes, specimens, methods, preparation and reference intervals.
LOINC 1968-7, 1971-1, 1975-2
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for Indirect calculated
Registered studies that measure Indirect 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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