The Blood 321
Case Study^
Anna, a 19-year-old college student, volunteers to donate blood to a blood bank to
help a friend injured in a car accident. Following blood tests, Anna learns that she cannot
donate blood because her erythrocyte count and hemoglobin levels are too low. The
blood bank recommends that Anna schedule an appointment with her^
primary health care provider for a follow-up examination and further blood tests.
Questions
- What condition might Anna have that is characterized by a low erythrocyte
count and hemoglobin level?^
- What are the major functions of erythrocytes, and what vital pigment do
erythrocytes contain?^
- Why do women tend to have a lower erythrocyte count and hemoglobin level
than men?^
4.^ What general symptoms do individuals with this condition tend to develop?^
5. How does diet play a role in preventing and treating this problem?
LABORATORY
EXERCISE:
The Blood
Materials needed: A blood-typing kit, com- 2. Examine under your microscope a com- (^)
mercially prepared microscope slides of human mercially prepared microscope slide (^)
blood stained with Wright’s stain stained with Wright’s stain. Find and draw (^)
- Your instructor will supply you with a blood- the seven types of blood cells: erythrocytes, (^)
typing kit to type your own blood. Carolina monocytes, lymphocytes, eosinophils,^
basophils,- neutrophils, and thrombocytes.
Biological Supply Company, -Burlington, (^)
NC, has an Eldoncard System for blood (^)
typing-^ that has a number of choices using or^
not using students’ own blood.