31111-8
Reticulocyte production index
Active
Term Description
The 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
Source: Regenstrief LOINC
The Reticulocyte production index (RPI, also called a corrected reticulocyte count) is a calculated value used in the diagnosis of anemia. This calculation is necessary because the raw reticulocyte count is misleading in anemic patients. The problem arises because the reticulocyte count is not really a count but rather a percentage: it reports the number of reticulocytes as a percentage of the number of red blood cells. In anemia, the patient's red blood cells are depleted, creating an erroneously elevated reticulocyte count.
Source: Wikipedia
Part Descriptions
LP16487-8 Reticulocytes
Reticulocytes are immature red blood cells (RBC), comprising about 1% of the red cells in the human body. They develop and mature in the bone marrow and then circulate for about a day in the blood before developing into mature RBC. Like mature RBC, reticulocytes do not have a nucleus. They are called reticulocytes because of a reticular (mesh-like) network of ribosomal RNA that is visible under a microscope. Reticulocytes appear slightly bluer than other RBC when stained with Romanowsky stain. Reticulocytes are also slightly larger and thus can be identified as a high mean corpuscular volume during a full blood count done by machine.
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Source: Wikipedia, Reticulocytes (Wikipedia)
LP16487-8 Reticulocytes
In humans, reticulocytes are erythroid cells that have just undergone extrusion of their nucleus. They still contain some organelles that gradually decrease in number as the cells mature. Ribosomes are last to disappear. Certain staining techniques cause components of the ribosomes to precipitate into characteristic "reticulum" (not the same as the endoplasmic retuculum), hence the name reticulocytes.
Source: National Library of Medicine, MeSH 2006
Fully-Specified Name
- Component
- Reticulocytes/100 erythrocytes^^hematocrit adjusted
- Property
- NFr
- Time
- Pt
- System
- Bld
- Scale
- Qn
- Method
Additional Names
- Short Name
- Reticulocyte production index
- Display Name
- Reticulocytes/100 RBC hematocrit adjusted (Bld)
- Consumer Name Alpha Get Info
- Reticulocytes per 100 Red Blood Cells Hematocrit Adjusted, Blood
Basic Attributes
- Class
- HEM/BC
- Type
- Laboratory
- First Released
- Version 2.07
- Last Updated
- Version 2.73
- Change Reason
- The system of RBC had been an oversight. Reticulocytes are red blood cells, but the system of interest is blood
- Order vs. Observation
- Observation
- Common Test Rank Get Info
- 1470
Language Variants Get Info
Tag | Language | Translation |
---|---|---|
de-AT | German (Austria) | Synonyms: RPI |
de-DE | German (Germany) | Retikulozyten/100 Erythrozyten^^Hämatokrit angepasst: |
es-AR | Spanish (Argentina) | reticulocitos/100 eritrocitos^^hematócrito ajustado: |
es-ES | Spanish (Spain) | Reticulocitos/100 eritrocitos^^hematocrito ajustado: Synonyms: Cuantitativo |
es-MX | Spanish (Mexico) | Reticulocitos / 100 eritrocitos^^ hematocrito ajustado: |
fr-CA | French (Canada) | Réticulocytes/100 érythrocytes^^ajusté pour l'hématocrite: |
fr-FR | French (France) | Réticulocytes/100 érythrocytes hématocrite ajusté(e): |
fr-BE | French (Belgium) | Réticulocytes/100 érythrocytes^^ajusté pour l'hématocrite: Synonyms: Globules rouges, GR |
it-IT | Italian (Italy) | Reticolociti/100 eritrociiti^^ematocrito regolato: Synonyms: Ematologia (coagulazione) conta differenziale Frazione numerica Punto nel tempo (episodio) Sangue |
ko-KR | Korean (Korea, Republic Of) | 그물적혈구/100 적혈구^^표준 적혈구용적률: |
nl-NL | Dutch (Netherlands) | reticulocyten/100 erytrocyten^^gecorrigeerd voor hematocriet: |
pl-PL | Polish (Poland) | Retykulocyty/100 erytrocytów^^dostosowany do hematokrytu: |
pt-BR | Portuguese (Brazil) | Reticulóctos/100 eritrócitos^^hematócrito corrigido: Synonyms: ; |
ru-RU | Russian (Russian Federation) | Ретикулоциты/100 эритроцитов^^гематокрит поправленный: Synonyms: Количественный Количество отношение Кровь Точка во времени; |
tr-TR | Turkish (Turkey) | Retikülositler/100 eritrosit^^hematokrit ayarlanmış: |
zh-CN | Chinese (China) | 网织红细胞/100 个红细胞^^经过针对血细胞压积而调整的: Synonyms: 100 RBCs; |
Example Units
Unit | Source |
---|---|
% | Example UCUM Units |
% | REGENSTRIEF |
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