Thyroxine (T4) free index in Serum or Plasma by calculation 32215-6
LOINC Code
| LOINC code | 32215-6 | ||
|---|---|---|---|
| name | Thyroxine (T4) free index in Serum or Plasma by calculation | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Thyroxine free index | ||
| property | MCnc = Mass Concentration | ||
| 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 | FT4I SerPl Calc-mCnc | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
| formula (readable) | FTI=(T4 concentration) x (% TU)/100 -- a pure fraction | ||
| example UCUM units | {Index_val} 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 | Index | ||
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 | |||
| test rank | 669 of 2000 most commonly performed tests by labs in USA | ||
| first released | |||
| last updated | 2.73 | ||
| last change type | MIN - change to field other than name | ||
| change reason | FTI is fundamentally MCNC but many labs report as unit-less. | ||
Related Names | |||
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