The MAXM(TM) hematology autoanalyzer: An alternative?

H. H. Billett, E. Simson, P. Main, C. Bailey, P. Guerra

Research output: Contribution to journalArticlepeer-review


The MAXM(TM) is a compact blood count and differential analyzer that appeals to both the space-limited, full-service laboratory and the large outpatient practice. The authors compared the performance of the Coulter MAXM to the larger Coulter STKS.(TM) Linearity and precision studies were comparable to the STKS. MAXM leukocyte differentials were closely correlated with STKS and manual readings, being excellent in the neutrophil, lymphocyte, and eosinophil categories but poorer on monocyte counts. Basophil counts did not correlate with STKS or manual counts. Analyzer suspect flagging was similar in both machines, with the MAXM exhibiting slightly reduced sensitivity and greater specificity. MAXM processing of a single sample requires twice the time. The MAXM functions well for a large office practice and as a backup for large medical laboratories but, because of its hands-on requirements and lack of speed, cannot replace the larger, more automated analyzers.

Original languageEnglish (US)
Pages (from-to)36-44
Number of pages9
JournalAmerican journal of clinical pathology
Issue number1
StatePublished - Jan 1 1994


  • Automated hematology
  • Blood count
  • Coulter MAXM
  • Coulter STKS
  • Leukocyte differential

ASJC Scopus subject areas

  • Pathology and Forensic Medicine


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