RBC Flashcards
What is hematology?
Study of blood cells and their formation
What does RBC stand for?
Red Blood Cell
What does WBC stand for?
White Blood Cell
What are thrombocytes?
Platelets
What should be done prior to any treatment regarding blood collection?
Collect prior to any treatment if possible
List the key steps in blood collection and sampling.
- Determine what tests and amount needed
- Type of supplies and equipment
- Least amount of tissue damage
What factors affect the quality of blood sample results?
- Proper sample handling
- Proper Ratio
- Anticoagulants
- Preservatives
- Proper Mixing
- Proper storage
What is the liquid portion of blood called?
Plasma
What is the approximate water content in plasma?
~ 90-93 % Water
What are the main components of blood?
- Erythrocytes
- Leukocytes
- Platelets
What is the average blood volume percentage in dogs?
~7-9%
What is the average blood volume percentage in cats?
~6.5%
What is the primary function of erythrocytes?
Gas transport
What is the structure of mature erythrocytes?
- Round (mammals)
- Anucleated
- Contains 4 hemoglobin groups
- Biconcave
What hormone stimulates erythrocyte production?
Erythropoietin
What is the lifespan of erythrocytes in dogs?
110 – 122 days
What is packed cell volume (PCV)?
% of RBC in Blood
What is the procedure to measure PCV?
- Fill 2 microcapillary tubes with blood
- Seal 1 end with clay
- Centrifuge
What is the normal PCV range for canines?
37 – 55 %
What can increased PCV indicate?
- Dehydration
- Polycythemia
What is the formula to calculate Mean Corpuscular Volume (MCV)?
(PCV X 10) ÷ RBC count
What does MCHC stand for?
Mean Corpuscular Hemoglobin Concentration
What is the calculation for Mean Corpuscular Hemoglobin Concentration (MCHC)?
Hb (g/dL) ÷ PCV x 100
What does RDW measure?
Red Cell Distribution Width
What does an increased RDW indicate?
Increased anisocytosis
What indicates increased erythropoiesis in reticulocyte count?
Presence of reticulocytes in peripheral blood
What is the significance of reticulocyte count in the assessment of anemia?
Useful in assessing bone marrow response to anemia
What is the average weight of hemoglobin in a red blood cell known as?
Mean Corpuscular Hemoglobin (MCH)
What does a normochromic erythrocyte indicate?
Normal MCHC
What is the expected RDW in normal conditions?
Normal cell size variations
Fill in the blank: Hb can be estimated from PCV as Hb (g/dL) = _______.
PCV/3
