Reticulocyte production index   31111-8

LOINC Code


LOINC code31111-8
nameReticulocyte production index
descriptionThe reticulocyte production index also called the corrected reticulocyte "count" (it is really a percentage, adjust the observed count for the degree of anemia based on the hematocrit using the formula Recticulocyte index= Reticuloctye% *( Hct(observed)/45) where 45 is taken to be the "standard" hematocrit Reticulocyte production index= Reticulocyte index X correction factor" where correction factor is applied as follows HCT Correction factor 36-45 1.0 26-35 1.5 16-25 2.0 < 15 2.5
statusACTIVE

Fully-Specified Name

componentReticulocytes/100 erythrocytes^^hematocrit adjusted
propertyNFr  =  Number Fraction
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.
systemBld  =  Whole blood
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
method

Additional Names

short nameReticulocyte production index

Basic Attributes

classHEM/BC
type1  Laboratory
order vs. observationObservation
example UCUM units%
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%

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 rank1470 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 reasonThe system of RBC had been an oversight. Reticulocytes are red blood cells, but the system of interest is blood

Related Names

100 RBC
adj
Blood
Corrected reticulocyte count
Discocytes
Erthrocyte
Erythrocyte
Hct
Hct adj
Hematology
HEMATOLOGY/CELL COUNTS
Heme
Number Fraction
PCV
Percent
Point in time
Polychromatophilic red cells
QNT
Quan
Quant
Quantitative
Random
RBC
RBCS
Red blood cell
Red blood cells
Red blood corpuscle
Red blood corpusles
Red cell
Red cells
Retic
Retics
Reticulocyte
Reticulocyte Index
Reticulocyte Production Index
RI
RPI
WB
Whole blood
hierarchy paths
LOINC Home
   {component}   LP432695-7
      Laboratory   LP29693-6
         Hematology and Cell counts   LP7803-2
            Hematology   LP30786-5
               Cell Fractions/Differential   LP19481-8
                  Myeloid cells   LP15094-3
                     Erythroid cells   LP35614-4
                        Erythrocytes   LP14304-7
                           Reticulocytes   LP16487-8
                              Reticulocytes | Blood | Hematology and Cell counts   LP392535-3
LOINC Home
   {component}   LP432695-7
      Laboratory   LP29693-6
         Hematology and Cell counts   LP7803-2
            Hematology   LP30786-5
               Blood Indices   LP30866-5
                  Reticulocytes   LP16487-8
                     Reticulocytes | Blood | Hematology and Cell counts   LP392535-3

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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