67709-6
LOINC Code
| LOINC code | 67709-6 | ||
|---|---|---|---|
| name | |||
| description | This analyte is measured using the non-derivatized tandem mass spectrometry (MS/MS) method and is not measured when using the derivatized reagents. When using the derivatized reagents, it will instead be measured as two separate analytes C4-DC [LOINC: 45222-7] and C5-OH [LOINC: 50106-4]. A different LOINC code is used for the derivatized or non-derivatized method because based on the reagents used in processing, different sets of analytes become isobaric, which means that they cannot be distinguished on the MS/MS because they have the same molecular weight after reagent processing. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Methylmalonylcarnitine (C4-DC)+3-Hydroxyisovalerylcarnitine (C5-OH) | ||
| property | SCnc = Substance 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 | Bld.dot = Blood filter paper | ||
| 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 | |||
Additional Names | |||
| short name | 3-hydroxy-isovalerylcarnitine; 3OH-Isovalerylcarn; Blood; C4DC; C4-DC; C4DC+C5OH; C4-DC+C5-OH; C4-DCC; C5OH; C5-OH; Chemistry; DBS; Dicarboxylic carnitine; Dried blood spot; Filter paper; FP; III; Level; Me-malonylcarn; nonderivatized; non-derivatized; Po | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | C4-DC+C5-OH DBS | ||
| example UCUM units | umol/L 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) | ||
Member of these Panels | |||
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History/Usage | |||
| first released | |||
| last updated | 2.73 | ||
| last change type | MIN - change to field other than name | ||
| change reason | umol/L | ||
Related Names | |||
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Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, 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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