Card Set Information
Why is hematology important?
diagnosing illness and disease
What is the function of blood?
distribution of absorbed nutrients
transports oxygen, carbon dioxide, waste products and hormones
assists with body temp, constant body pH, prevention of excessive blood loss, defense against disesase
What types of cells make up blood?
What are the components of blood?
What is plasma?
fluid component of blood that suspends cells and other substances like nutrients, proteins, hormones and electrolytes
92% water, 8% substances
What are the primary proteins found in plasma?
What are the evaluation characteristics of blood?
What is Hematocrit?
packed cell volume (PCV)
measures cell component compared to fluid component
can indicated changes like anemia and dehydration
What color is whole blood?
more oxygen, the lighter red it will be
What color are Red Blood Cells?
dictated by amount of hemaglobin
What color is plasma?
opaque to slight yellow
What is blood pH?
measures hydrogen ions
normal is about 7.3 to 7.4
What is venous blood pH?
more acidic because it carries CO
dark red color
What is arterial blood pH?
very red and oxygenated
What is the primary function of erythrocytes?
What do they synthesize?
Where are they stored?
How long is degradation?
synthesize red bone marrow
stored in spleen, bone marrow, in circulation
What is the primary intracellular component in erythrocytes?
What is oxyhemoglobin?
when oxygen attaches to hemaglobin
What is carbaminohemoglobin?
What is the primary function of leukocytes?
provide immune response
What are the classes of leukocytes?
What is the primary function of platelets (thrombocytes)?
seal off area of injury
What is hemostasis?
stoppage of bleeding
How does hemostasis work?
1. smooth muscle contraction
2. platelet plug forms
3. clot forms over opening
What are the anti-coagulants in plasma?
What is serum?
plasma minus clotting proteins
Why would you collect blood as plasma?
if you're looking for specific clotting