Maximum blood flow velocity ICA at maximum stenosis/Maximum blood flow velocity unobstructed CCA by US 33868-1
LOINC Code
| LOINC code | 33868-1 | ||
|---|---|---|---|
| name | Maximum blood flow velocity ICA at maximum stenosis/Maximum blood flow velocity unobstructed CCA by US | ||
| description | The Peak Velocity at the point of maximum stenosis in the internal carotid artery overt the Peak Velocity in the unobstructed common carotid artery two cm or more proximal to the bifurcation. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Blood flow velocity.max.stenosis.internal carotid artery/Blood flow velocity.max.unobstructed.common carotid artery | ||
| property | VelRto = Velocity Ratio | ||
| 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 | {Circulatory system} | ||
| 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 | US | ||
Additional Names | |||
| short name | Vmax stenosed ICA/unobstructed CCA US | ||
Basic Attributes | |||
| class | GEN.US | ||
| type | 2 Clinical | ||
| order vs. observation | Observation | ||
| example UCUM units | {ratio} 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 | ratio | ||
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 | 8248 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 | Release 2.67: COMPONENT: Updated instances of blood flow in Component to blood flow velocity for clarity and consistency across terms | ||
Related Names | |||
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Copyright © 2023 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2023, 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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