Page 231 - Clinical Hematology_ Theory _ Procedures ( PDFDrive )

CHAPTER 10 ■ Basic Laboratory Assessment of Erythrocytes, Leukocytes, and Platelets 215

k .

k . TABLE 10.3 Maturation Time Correction Factor

T

- - m , Hematocrit (%) Maturation Time (Days)

(RBC) m

q m RBC , 45 1.0

m - . W 35 1.5

RBC m , RBC - 25 2.0

. N m

, 15 2.5

m . A

m RBC . R

m m .
m

Calculating and Expressing Traditional .

Reticulocyte Values A m mm

, x x (RPI). T m

m - m m -

( . ., %). H , m - m m . T RPI m -

m . T

m

m - m .

. m m m -

q , x q RNA m

m m m ,

. T m m m m

, m . T ( . ). T CLSI mm RPI

C L S I (CLSI) m .

m , , Calculation of the Reticulocyte Production Index

m m m -

m k RBC m ( m ). %
RPI =

Corrected Reticulocyte Count m m

C = (%) I . % ’
(
’ k m m ) m . L/L, RPI

×
.
m m RPI = = .

.
Example: I m m % ( . L/L)

%, Absolute Reticulocyte Count

T m m m -

C = % , ,

LL m . T m
.
/
×
(
/
LL m m ) (L) m (µL) .
.
T m ( ) × /L.

/
.
LL
= × = = . % I × /L,

.

.

(
.
LL m m )
/
m .
T m m A m z
m m , m m
. % . %.
Reticulocyte Production Index
A =
A m %
×
m

q m . . *

m k m. T *T m /L

, , /L.