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PN 4237523A
3-15
OPERATION PRINCIPLES
PARAMETERS AND THEIR DERIVATION
3
White Blood Cell (WBC) Count
This is the number of leukocytes measured directly, multiplied by the calibration constant,
and expressed as
Red Blood Cell (RBC)
This is the number of erythrocytes measured directly, multiplied by the calibration constant,
and expressed as
Hemoglobin (Hgb) Concentration
Weight (mass) of hemoglobin determined from the degree of absorbance found through
photocurrent transmittance is:
Mean Corpuscular Volume (MCV)
This is the average volume of individual erythrocytes derived from the RBC histogram. The
system:
r
Multiplies the number of RBCs in each channel by the size of the RBCs in that channel.
r
Adds the products of each channel between 36 fL and 360 fL.
r
Divides that sum by the total number of RBCs between 36 fL and 360 fL.
r
Multiplies by a calibration constant and expresses MCV in femtoliters.
Hematocrit (Hct)
This is the relative volume of packed erythrocytes to whole blood, computed as:
Mean Corpuscular Hemoglobin (MCH)
This is the weight of hemoglobin in the average erythrocyte count, computed as:
WBC
n
10
3
cells
µ
L
---------------------
×
=
RBC
n
10
6
cells
µ
L
---------------------
×
=
Hgb (g/dL)
Constant
log
10
Reference %T
Sample %T
----------------------------------
×
=
Hct (%)
RBC
MCV
×
10
---------------------------------
=
MCH (pg)
Hgb
RBC
------------
10
×
=
Содержание HmX Hematology Analyzer
Страница 4: ...PN 4237523A iv REVISION STATUS ...
Страница 14: ...PN 4237523A xiv CONTENTS ...
Страница 18: ...PN 4237523A xviii INTRODUCTION COMPUTER PROGRAM STATEMENT ...
Страница 28: ...PN 4237523A 1 10 USE AND FUNCTION MATERIAL SAFETY DATA SHEETS MSDS ...
Страница 34: ...PN 4237523A 2 6 INSTALLATION INTERUNIT CONNECTIONS ...
Страница 52: ...PN 4237523A 3 18 OPERATION PRINCIPLES PARAMETERS AND THEIR DERIVATION ...
Страница 70: ...PN 4237523A 4 18 SPECIFICATIONS CHARACTERISTICS INTERFERING SUBSTANCES ...
Страница 77: ...PN 4237523A 6 3 REPORTING OPTIONS GRAPHIC FORMAT 6 Figure 6 3 Graphic Narrow Small Page Format ...
Страница 78: ...PN 4237523A 6 4 REPORTING OPTIONS GRAPHIC FORMAT ...
Страница 84: ...PN 4237523A 7 6 BAR CODE SPECIFICATIONS BAR CODE DECODER ...
Страница 98: ......
Страница 110: ...PN 4237523A 8 GLOSSARY GLOSSARY ...
Страница 124: ...PN 4237523A 14 INDEX INDEX ...
Страница 126: ......