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CHAPTER 30  ■  Instrumentation in Hematology                             649







                                 CASE STUDIES (continued)
                                  CASE STUDIES (continued)





                     ■    Laboratory Data                                                                                       ■    Absolute Cell Counts


                         Leukocyte Differential                                                               %                     Neutrophils                  10 /µL              23.4                  2.0–8.0
                                                                                                                                                                     3

                                                                                                                                                                     3
                         Blasts                                                                                 7                   Lymphocytes                  10 /µL              4.5                   1.0–5.0


                         Metamyelocytes                                                                         2               ■    Critical Thinking Group Discussion Questions


                         Band neutrophils                                                                      10               1.  Are any o  the laboratory values abnormal?

                         Polymorphonuclear segmented neutrophils (PMNs)                                        14
                                                                                                                                2.  Is the histogram abnormal?
                         Lymphocytes                                                                           50


                         Monocytes                                                                             14               3.  Should additional laboratory assays be ordered?


                         Eosinophils                                                                            0

                         Basophils                                                                              3                NOTE: This is a good time to write out the answers to the


                         Total                                                                               100                 Critical Thinking Group Discussion Questions.











                                       VOL

                                                                                                          RBC                                             PLI












                                                                                                                             WBC/
                                                                                                                             BASO











                                                                                           ABS












































                                                                              (Reprinted  rom McClatchey KD. Clinical Laboratory
                                                                              Medicine,  2nd  ed,  Philadelphia,  PA:  Lippincott

                                                                              Williams & Wilkins, 2002, with permission.)
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