Copper free/Total copper in Serum or Plasma by calculation 96463-5
LOINC Code
| LOINC code | 96463-5 | ||
|---|---|---|---|
| name | Copper free/Total copper in Serum or Plasma by calculation | ||
| description | A free copper level is calculated based on the difference between total copper and ceruloplasmin measurements, where the ceruloplasmin level represents the bound portion of circulating copper. In patients with Wilson's disease that is pre-symptomatic or adequately controlled, the free copper level is within normal range, but in symptomatic patients, it is typically elevated. Increasing free copper levels in a patient with previously normal levels may indicate a change in compliance with therapy or a growth spurt or change in diet requiring therapy adjustment. [PMID: 12662398] This term represents the calculated result for free copper level as a fraction of the total copper measurement. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Copper.free/Copper.total | ||
| property | MFr = Mass Fraction | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Ser/Plas Ser = Serum Plas = Plasma | ||
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | ||
| method | Calculated | ||
Additional Names | |||
| short name | Copper free/Total copper MFr SerPl Calc | ||
Basic Attributes | |||
| class | DRUG/TOX | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
| formula (readable) | (Total copper - ceruloplasmin)/Total copper | ||
| example UCUM units | % The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | ||
| example unit | % | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
| first released | |||
| last updated | 2.69 | ||
| last change type | ADD - added | ||
Related Names | |||
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Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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