HEMATOLOGIC TESTS EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS | LATEST VERSION 2025/2026.
Broadly speaking, why are hematologic studies of blood so important in the diagnosis of
disease? - ANS Specific changes from the normal numbers/types of formed elements and/or
plasma constituents are characteristic of certain disease states
Why is a differential WBC count more valuable than a total WBC count when trying to pin down
the specific source of pathology? - ANS A differential count determines the relative percent
of each type of WBC. Increases or decreases in the specific WBC populations are often
indicative (diagnostic) of specific pathologies.
What name is given to the process of RBC production? - ANS Erythropoiesis
What hormone acts as a stimulus for this process? - ANS Erythropoietin
Discuss the effect of each of the following factors on RBC count. Consult an appropriate
reference as necessary, and explain your reasoning: Long term effect of athletic training (for
example, running 4 to 5 miles per day over a period of six to nine months) - ANS Increases
the RBC count. An athlete has relatively large muscle mass and needs an efficient oxygen
delivery to the muscles when they are working
Discuss the effect of each of the following factors on RBC count. Consult an appropriate
reference as necessary, and explain your reasoning: A permanent move from sea level to a
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
QUESTIONS WITH 100% CORRECT
ANSWERS | LATEST VERSION 2025/2026.
Broadly speaking, why are hematologic studies of blood so important in the diagnosis of
disease? - ANS Specific changes from the normal numbers/types of formed elements and/or
plasma constituents are characteristic of certain disease states
Why is a differential WBC count more valuable than a total WBC count when trying to pin down
the specific source of pathology? - ANS A differential count determines the relative percent
of each type of WBC. Increases or decreases in the specific WBC populations are often
indicative (diagnostic) of specific pathologies.
What name is given to the process of RBC production? - ANS Erythropoiesis
What hormone acts as a stimulus for this process? - ANS Erythropoietin
Discuss the effect of each of the following factors on RBC count. Consult an appropriate
reference as necessary, and explain your reasoning: Long term effect of athletic training (for
example, running 4 to 5 miles per day over a period of six to nine months) - ANS Increases
the RBC count. An athlete has relatively large muscle mass and needs an efficient oxygen
delivery to the muscles when they are working
Discuss the effect of each of the following factors on RBC count. Consult an appropriate
reference as necessary, and explain your reasoning: A permanent move from sea level to a
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
