HemoCue WBC DIFF User Manual

74
0510 15 20 25 30
0
5
10
15
20
25
30
0510 15 20 25 30
0
5
10
15
20
25
30
Method Comparison Study - Venous Samples
Results from a method comparison study performed according to CLSI Document EP 9-A2 on the HemoCue WBC DIFF system and the
Beckman Coulter LH750 are shown for total WBC count in Figure 1, for neutrophil count in Figure 2 and for lymphocytes in Figure 3.
Coefficients:
y = 0.16 + 0.96x
n = 596
r
2
= 0.968
r = 0.984
y = x
Beckman Coulter LH750, Neutrophils (x10
9
/L)
HemoCue WBC DIFF, Neutrophils (x10
9
/L)
0510 15 20 25 30
0
5
10
15
20
25
30
Coefficients:
y = -0.24 + 1.01x
n = 762
r
2
= 0.994
r = 0.997
y = x
HemoCue WBC DIFF total WBC (x10
9
/L)
Beckman Coulter LH750, total WBC (x10
9
/L)
HemoCue WBC DIFF, Lymphocytes (x10
9
/L)
Beckman Coulter LH750, Lymphocytes (x10
9
/L)
Coefficients:
y = 0.20 + 0.90x
n = 596
r
2
= 0.930
r = 0.964
y = x
Figure 1 Total WBC Figure 2 Neutrophils Figure 3 Lymphocytes

HemoCue WBC DIFF Specifications

General

Sample Volume	10 µL
Reportable Range	0.3–30.0 x 10^9/L
Measurement Parameters	Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils
Sample Type	Capillary or venous whole blood
Operating Temperature	15-30°C
Connectivity	USB, Ethernet
Calibration	Factory calibrated
Measurement Time	Approximately 3 minutes
Display	Color LCD

Summary

HemoCue WBC DIFF System Overview

System Description and Indication

Describes the HemoCue WBC DIFF system as an in-vitro diagnostic system for quantitative determination of white blood cells.

Analyzer Setup and Configuration

Component Identification and Initial Setup

Identifies analyzer components and illustrates initial setup for power and connections.

Data Entry, Navigation, and Settings

Covers data entry devices, navigation principles, and analyzer settings configuration.

Peripheral Device Integration

Details setup for printer, keyboard, and barcode reader connectivity.

Operating Procedures

Blood Sample Collection

Details procedures for collecting capillary and venous blood samples, including preparation.

Performing Patient and QC Tests

Explains how to perform patient tests and quality control tests, including sample insertion and result confirmation.

Results Management and Maintenance

Covers reviewing/deleting results and daily maintenance procedures for the analyzer.

Troubleshooting and Specifications

Troubleshooting Guide and Error Codes

Provides guidance on interpreting flags and error codes, with solutions for common issues.

Technical Specifications and Safety

Lists system specifications, performance, EMC, warranty, and safety information.