CLINICAL LAB SCIENEC

CHAPTER 13: HEMATOLOGY AND COAGULATION 351
20. Discard all supplies used for the procedure in the appropriate containers. A disinfectant
should be used to clean the work surfaces and equipment should be
cleaned and restored to its former position. Gloves should be discarded appropriately
and the hands washed thoroughly in accordance with established policies.
Reporting of Results
Note: Consult figures 13-13, 13-14 and 13-15 when evaluating RBCs. RBCs are
reported in a semiquantitative manner, using the terminology in Table 13-3.
Table 13-3 Characteristics for Evaluating RBCs
Size
Normocytic
Microcytic
Macrocytic
Anisocytosis
Hemoglobin Content
Normochromic
Hypochromic
Shape
Poikilocyte
Ovalocyte,
Elliptocyte
Drepanocyte
Tear Drop
Schistocyte
Keratocyte
Echinocyte
Acanthocyte
Spherocyte
Stomatocyte
Target Cell
Normal size
Smaller than average size
Larger than average size
Cells of Various Sizes Present
Normal color, hemoglobin level
Pale color and lack of adequate hemoglobin
Abnormally shaped RBC
Oval red cell
Sickle-shaped cells
Pear-shaped red cell
Cellular fragment
Military helmet-shaped (“helmet cell”)
Crenated red cell, regularly spiculated (usually
reversible)
Irregularly spiculated (irreversible)
Round red cells with no central pallor (not biconcave)
Red cell with mouth shaped area of central pallor
Area of central pallor with dense center (“bulls-eye”)
A normal red blood cell should be approximately the same size as a normal lymphocyte
nucleus. Two normal-size red blood cells should fit side-by-side across a normalsize
poly (not a hypersegmented poly). The presence of abnormal cells is reported as
1 to 4 (the most extreme condition). These numbers correlate with the number
observed per OIF (oil immersion field), as follows:
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