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Self Instructional Manual for Cancer Registrars - SEER - National ...

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HEMATOLOGIC<br />

EXAMINATION<br />

A hematologic examination is the microscopic examination of the cells of the blood or<br />

blood-<strong>for</strong>ming tissues (especially bone marrow), looking <strong>for</strong> changes in the structure of and/or<br />

numbers of various types of blood cells, including immature cells.<br />

Peripheral blood is circulating blood obtained from the extremities or from the circulatory system<br />

remote from the heart. One of the most frequently used procedures <strong>for</strong> obtaining blood <strong>for</strong> a<br />

complete blood count is the fingerstick method. Other procedures <strong>for</strong> obtaining specimens <strong>for</strong><br />

hematologic examination include venipuncture, bone marrow aspiration, and bone marrow biopsy<br />

which will be discussed in detail later.<br />

There are three main types of blood cells--erythrocytes, leukocytes, and thrombocytes (platelets)--all<br />

_uspended in a fluid portion called plasma.<br />

In reviewing what you learned in Book 3, separate the underlined words into their word elements<br />

and define each element.<br />

a. hematologic<br />

Word Element Meaning<br />

b. microscopic<br />

c. venipuncture<br />

d. erythrocytes<br />

e. leukocytes<br />

f. thrombocytes<br />

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