CLINICAL LAB SCIENEC

CHAPTER 13
Hematology and Coagulation
LEARNING OBJECTIVES
Upon completion of this chapter, the reader will be able to:
• List the types of blood that may
be collected for hematological
procedures.
• Provide the major functions for
white blood cells and red blood
cells.
• Name the five types of white
blood cells.
• Discuss the reasons for having
a well-prepared blood film.
• Describe the relationship
between hemoglobin and
hematocrit values.
• Discuss the need for an
anticoagulated specimen for
performing a complete blood
count.
KEY TERMS
Autolet device
Basophils
Calcium ions
Capillary pipette
Capillary tube
Coagulation
Complete blood count (CBC)
Cyanmethemoglobin
Direct leukocyte count (DLC)
EDTA
Eosinophils
Extrinsic factor
Factor X
Ferricyanide
Gross lipemia
Hemacytometer
Hematocrit
Hemorrhage
International Normalized
Ratio (INR)
International Sensitivity Index
Intrinsic factor
Lancets
Leukocytes
Lymphocytes
Macroglobulinemia
Methemoglobin
Microcapillary reader
Monocytes
Neutrophils
Oxyhemoglobin
Polycythemia
Prothrombin
Random error
Reticulocytes
Sealing putty
Sulfhemoglobin
Supernatant
Thromboplastin
Unopette disposable diluting pipette
Warfarin (Coumadin)
Introduction
The word hematology literally means “study of blood.” There is not just one test,
but a multitude of tests available for all sorts of disease states that may afflict a
patient. Hematology provides another basic test, or actually a set of tests, used
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