Isotopic Tubular extraction rate/1.73 sq M [Volume Rate/Area] in Serum or Blood 87378-6
LOINC Code
| LOINC code | 87378-6 | ||
|---|---|---|---|
| name | Isotopic Tubular extraction rate/1.73 sq M [Volume Rate/Area] in Serum or Blood | ||
| description | This test is for the tubular extraction rate (TER) based on the clearance of a radioisotope (e.g., 99mTc-MAG3). The TER can be calculated using various algorithms, including continuous infusion, single injection, single sample, and the two-compartment model. [PMID: 11545186]. Clearance calculation methods may differ for children [PMID:1831838]. Radioisotopes, such as 99mTc-MAG3, provide evidence of tubular clearance because 99mTc-MAG3 is selectively filtered by the renal tubule and not by glomerular filtration. Tc-99m Mertiatide (99mTc-MAG3) is also a radiopharmaceutical used for renography [PMID:11545186]. To report the results of a renography study (and not TER measurement), use [LOINC:39746-3]. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Tubular extraction rate/1.73 sq M | ||
| property | ArVRat = Volume Rate/Area | ||
| 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/Bld Ser = Serum Bld = Whole blood | ||
| 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 | Isotopic | ||
Additional Names | |||
| short name | Isotopic TER/1.73 sq M SerBld-ArVRat | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
| example UCUM units | mL/min/{1.73_m2} 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 | mL/min/1.73 sq m | ||
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 | 2.63 | ||
| 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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