Abstract
Evaluation of linearity, carry-over, precision, and accuracy of a Coulter Counter model S-Plus IV prototype showed that they meet the manufacturer's specifications. The instrument also was compared with an earlier model. Correlations of the lymphocyte and granulocyte values in the three-part differential count with manual eye-count and a Technicon® Hemalog D90 results were very close to the correlation of eye-count to Hemalog D90 results. The percentage of mononuclear cells showed acceptable correlation to the manual eye-count when monocytes were combined with blasts, eosinophils, and basophils. The medical effectiveness of the three-part differential was determined by comparison with manual eye-counts in 1,084 samples. The false positive and false negative values were 7.38% and 7.84%, respectively. The instrument has acceptable limits of operation. When combined with analysis of histograms by trained personnel, the three-part differential count is capable of screening for abnormalities that require further analysis.
Original language | English (US) |
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Pages (from-to) | 297-306 |
Number of pages | 10 |
Journal | American journal of clinical pathology |
Volume | 84 |
Issue number | 3 |
DOIs | |
State | Published - Jan 1 1985 |
ASJC Scopus subject areas
- Pathology and Forensic Medicine