Don't have an account? Sign Up




This patient had monocytosis of 1.90 x 10^9/L. The SIZE/COMPLEXITY and the 90º/WBC 0º scatterplots show a clear separation of the lymphocyte and the monocyte populations. The monocytosis did not trigger a flag because their size distribution was within pre-defined limits. The monocytes were morphologically normal. This picture might be associated with certain infections, notably tuberculosis.


Monocytosis can be manifested in chronic inflammatory conditions, Infections: tuberculosis, brucellosis, listeriosis, subacute bacterial endocarditis, syphilis, and other viral infections and many protozoal and rickettsial infections . Blood and immune causes can be: chronic neutropenia and myeloproliferative disorders.


Autoimmune diseases and vasculitis: systemic lupus erythematosus, rheumatoid arthritis and inflammatory bowel disease. Malignancies: Hodgkin’s disease and certain leukaemias, such as chronic myelomonocytic leukaemia (CMML) and monocytic leukemia.

Numerical Results

WBC 8.16 10e3/μL
NEU 4.54 55.715 %
BLST .002 0.26 %
MONe 1.90 23.3 %
EOS .047 .575 %
BASO .058 .709%
LYMe 1.616 19.77 %

RBC 3.38 10e6/μL
HGB 9.43 g/dL
HCT 29.1 %
MCV 86.3 fL
MCH 27.9 pg
MCHC 32.4 g/dL
RDW 14.0 %

PLT 211. 10e3/μL
MPV  6.76 fL

CELL-DYN Ruby Casebook. Monocytosis. 2018. ADD-00005070. p.39
©2021 Abbott, Abbott Park, Illinois, U.S.A.

Privacy Policy| Terms and Conditions

Unless otherwise specified, all product and service names appearing in this Internet site are trademarks owned by or licensed to Abbott, its subsidiaries or affiliates. No use of any Abbott trademark, trade name, or trade dress in this site may be made without the prior written authorization of Abbott, except to identify the product or services of the company.

All Alinity hq, CELL-DYN Ruby and CELL-DYN Sapphire instruments are Class I laser products. ACCELERATOR a3600 is a Class II laser product. 

The Alinity, ACCELERATOR and CELL-DYN systems are intended for performing in vitro diagnostic assays on samples of human origin (blood, urine). Read the instructions in the system manuals and labeling and/or reagent instructions carefully. Manufacturer or Authorized Representative: Abbott Germany.

Alinity h-series is available in select countries, not including the US.