IgG synthesis rate [Mass/time] in Serum and CSF by calculation   14116-8

LOINC Code


LOINC code14116-8
nameIgG synthesis rate [Mass/time] in Serum and CSF by calculation
descriptionIgG synthesis expresses the synthesis of IgG inside the blood brain barrier, in mg/day, calculated with a formula based on theoretical considerations and on results of clearance studies for a small number of patients. IgG syn = {(IgG.CSF - IgG.serum/369) - (Alb.CSF - Alb.serum/230) x (IgG.serum/Alb.serum) x 0.43} x 0.5.
statusACTIVE

Fully-Specified Name

componentIgG synthesis rate
propertyMRat  =  Mass Rate
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.
systemSer+CSF
    Ser  =  Serum
    CSF  =  Cerebral spinal fluid
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
methodCalculated

Additional Names

short nameIgG Synth Rate Ser+CSF Calc-mRate

Basic Attributes

classCHEM
type1  Laboratory
order vs. observationBoth
formula (readable)IgG syn = {IgG.CSF - IgG.serum/369) - (Alb.CSF - Alb.serum/230) x (IgG.serum/Alb.serum) x 0.43} x 0.5.
example UCUM unitsmg/(24.h)
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 unitmg/24 H

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.

Member of these Panels

55121-8Multiple sclerosis panel - Serum and CSF

History/Usage

test rank2594 of 2000 most commonly performed tests by labs in USA
first released
last updated2.73
last change typeMIN  - change to field other than name

Related Names

Both serum and cerebrospinal fluid
Calc
Calculation
Cerebral spinal fluid
Cerebrospinal Fl
Chemistry
IgG Synth Rate
Immune globulin G
Immunoglobulin G
Mass rate
mRate
Point in time
QNT
Quan
Quant
Quantitative
Random
Serum
Spinal Fl
Spinal Fld
Spinal Flu
Spinal Fluid
SR
Systhesis

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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