Biomarkers · Chemical
Osmolality Serum
Osmolality tests measure the amount of certain substances in your blood, urine, or stool (poop). The tests can show how your kidneys are working and whether you have an unhealthy fluid balance.
- Also listed as
- Osmolality, Serum, Osmolality
- Primary unit
- mOsmol/kg
- LOINC codes
- 2692-2
- Tests that measure Osmolality Serum
- Labcorp 2, Quest Diagnostics 1
Tests
Check the catalog code, specimen, method and preparation for every test that measures Osmolality Serum. Select up to five tests to compare them side by side.
Labcorp 2 tests
Single-analyte tests
Osmolality 002071
Serum · Fasting not stated · Turnaround 1 - 3 days
Labcorp catalog pageMethod and collection
- Method
- Freezing point depression
- Collection
- Pediatric: Blood drawn from heelstick for capillary. Separate serum or plasma from cells as soon as possible after clot formation. Transfer specimen to a plastic transport tube.
- Reference notes
- Neonatal: may be as low as 266 mOsm/kg; 0 to 60 years: 275−295 mOsm/kg; 61 years and older: 280−301 mOsm/kg
Panels that include this biomarker
Antidiuretic Hormone (ADH) Profile 046557
2 analytes · Serum · Fasting not stated · Turnaround 4 - 10 days
Labcorp catalog pageMethod and collection
- Method
- ADH: radioimmunoassay (RIA); osmolality: freezing point depression
- Preparation
- No isotopes administered 24 hours prior to venipuncture
- Collection
- Draw serum and plasma samples and separate from cells using a refrigerated centrifuge. Transfer separated samples into clearly labeled “plasma” and “serum” plastic transport tubes. Freeze plasma immediately and refrigerate serum. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
- Reference notes
- • ADH: 0.0−4.7 pg/mL • Osmolality: − Neonates: May be as low as 266 mOsmol/kg − 0 to 60 years: 275−295 mOsmol/kg − >60 years: 280−301 mOsmol/kg
Quest Diagnostics 1 test
Single-analyte tests
Osmolality, Serum 677
Serum · Fasting not stated · Turnaround Set up: Mon-Fri; Report available: 4 days
Quest Diagnostics catalog pageMethod and collection
- Method
- Freezing Point Depression
- Reference notes
- 278-305 mOsm/kg
0 of 5 tests selected
Pick one moreSources
2 tests: codes, specimens, methods, preparation and reference intervals.
Quest Diagnostics test catalog
1 test: codes, specimens, methods, preparation and reference intervals.
MedlinePlus, National Library of Medicine
The description at the top of this page.
LOINC 2692-2
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for Osmolality Serum
Registered studies that measure Osmolality Serum, 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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