Maximum blood flow velocity ICA at maximum stenosis/Maximum blood flow velocity unobstructed CCA by US   33868-1

LOINC Code


LOINC code33868-1
nameMaximum blood flow velocity ICA at maximum stenosis/Maximum blood flow velocity unobstructed CCA by US
descriptionThe 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.
statusACTIVE

Fully-Specified Name

componentBlood flow velocity.max.stenosis.internal carotid artery/Blood flow velocity.max.unobstructed.common carotid artery
propertyVelRto  =  Velocity Ratio
timePt  =  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}
scaleQn  =  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
methodUS

Additional Names

short nameVmax stenosed ICA/unobstructed CCA US

Basic Attributes

classGEN.US
type2  Clinical
order vs. observationObservation
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 unitratio

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 rank8248 of 2000 most commonly performed tests by labs in USA
first released
last updated2.73
last change typeMIN  - change to field other than name
change reasonRelease 2.67: COMPONENT: Updated instances of blood flow in Component to blood flow velocity for clarity and consistency across terms

Related Names

Bld flow
Bld flow vel
Bld flow.velocity
CCA
Circ
Circ sys
Dynamic
Echography
GENERAL ULTRASOUND
ICA
Largest
Maximal
Maximum
Peak
Peak velocity
Point in time
QNT
Quan
Quant
Quantitative
Random
Sonogram
Sonograph
Sonography
ULS
Ultrasound
Vel
Velocity ratio
Vmax
Vmax ICA

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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