RPI Corrected
Compute the corrected reticulocyte production index as the reticulocyte percent divided by a maturation factor and scaled by the patient to normal hematocrit ratio.
Description
Compute the corrected reticulocyte production index as the reticulocyte percent divided by a maturation factor and scaled by the patient to normal hematocrit ratio.
RPI Corrected is a focused biology tool that compute the corrected reticulocyte production index as the reticulocyte percent divided by a maturation factor and scaled by the patient to normal hematocrit ratio. It calculates locally from the values you enter and exposes the result without changing the source observations.1
When to use RPI Corrected
Use RPI Corrected when you need to compute the corrected reticulocyte production index as the reticulocyte percent divided by a maturation factor and scaled by the patient to normal hematocrit ratio. Enter Reticulocytes, Maturation factor, Patient hematocrit, and Normal hematocrit using the definitions and units below so the result can be reproduced.
- Reticulocytes
- A finite measured or assumed value greater than or equal to 0, expressed in %.
- Maturation factor
- Maturation factor for marrow correction.
- Patient hematocrit
- A finite measured or assumed value, expressed in %.
- Normal hematocrit
- Reference normal hematocrit.
How RPI Corrected calculates the result
The published tool contract uses this rule: Compute the corrected reticulocyte production index as the reticulocyte percent divided by a maturation factor and scaled by the patient to normal hematocrit ratio.1
- Reticulocyte production index
- The calculated reticulocyte production index.
Limitations of RPI Corrected
A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small. Maturation factor must remain between 1 and 4.
Alternative or Complementary measurements
Retain the original Reticulocytes, Maturation factor, Patient hematocrit, and Normal hematocrit values and their units alongside the result. Corrected Retic Percent is useful when you instead need to correct the reticulocyte percent for anemia by multiplying by the patient to normal hematocrit ratio with a reference normal hematocrit of 45 percent. ARC From Percent provides another view by helping you compute the absolute reticulocyte count in thousands per microlitre as the reticulocyte percent times the RBC count in millions per microlitre times ten.
References
-
Reticulocyte production index — Wikipedia contributors
Similar or alternative tools
- Corrected Retic Percent
Correct the reticulocyte percent for anemia by multiplying by the patient to normal hematocrit ratio with a reference normal hematocrit of 45 percent.
- ARC From Percent
Compute the absolute reticulocyte count in thousands per microlitre as the reticulocyte percent times the RBC count in millions per microlitre times ten.
- Iron Deficiency Indicator
Flag iron deficiency when ferritin is below thirty nanograms per millilitre and transferrin saturation is below twenty percent.