Section 1 Flashcards
Serum
fluid portion of coagulated blood
Plasma
fluid portion of anti-coagulated blood
Potential Sources of Error in CBC
- Hemolysis: Shaking, Needle too small, Forcing blood into tube, H2O in syringe, spun too long or fast, froze & thawed
- Clot: Not mixed gently or thoroughly, traumatic venipuncture, “dinking” around, increased fibrinogen levels, low EDTA to high blood levels
Cellular Components of Blood
RBC: Oxygen transport
WBC: Defense/ Immunity
Platelets: Clot
Total Protein
increments of .2 measured on refractometer in grams/dl
Packed Cell Volume
% of RBCs in a quantity of blood
Normal Plasma color
clear to straw
Abnormal Plasma colors
Red: Hemolytic- Shaking, needle too small,
White: Limpemic- Post meal, hypothyroid, diabetes
Yellow: Icteric- biliary stasis, carotenes, hemolysis
Wright’s Stain
Jar #1: Wright’s Stain (1-3 min)
Jar #2: Buffer with 1 pipette of Wright’s (1min)
Jar #3: Distilled H2O (7-10, 1sec. dips)
Dif Quick
Jar #1: Fixative (5, 1sec. dips)
Jar #2: Eosinophilic (5, 1sec. dips)
Jar #3: Basophilic (7-10, 1sec. dips)
Monocyte
Irregularly shaped nucleus, lacy chromatin, Blue/Gray cytoplasm that may contain vacuoles, low to equal N:C ratio (small nucleus)
Lymphocyte
Round to oval nucleus may have cleft or “bleb” smudged chromatin, light to grey blue cytoplasm, high N:C ratio (big nucleus)
Agranulocytes
No granules in cytoplasm, 2 types Mono & Lymphocyte
Basophil
dark, dense, segmented nucleus, granules stain blue
Dog, horse, cow: inconsistent “pepper” sprinkles
Cat: uniform round, pale blue
Eosinophil
Dark, dense, segmented nucleus, pinkish granules Dog: go by nucleus & color Cat: small, uniform rod shapes Cow: small, uniform circles Horse: large, uniform circles
Neutrophil
have neutral stain on granules
dark, dense, segmented nucleus
no color in granules except for cow, which are dusty purple/grey called Segs
Granulocyte
have granules in cytoplasm, elongated dark, dense, segmented nucleus with dark chromatin
3 Types of Granulocytes
Neutrophil
Eosinophil
Basophil
Hypovolemia
decreased blood volume due to blood loss or dehydration
- trauma, surgery, worms, arterial bleeding
- Pale MM, decreased temp, lethargic, increased CRT, tachycardia
Acellular component of blood
Albumin: maintains oncotic pressure
Fluid portion of blood
Water: transport, perfusion, thermostat regulation, chemical reactions, solvent
Dissolved Substances in blood (10)
Globulins- defense Electrolytes- H2O regulation, homeostasis Hormones- ^ & action potentials Enzymes- catalysts Clotting Factors- maintain homeostasis Vitamins- maintain homeostasis Minerals- maintain homeostasis Waste- byproducts of metabolism Gases- maintain homeostasis Glucose- energy
WBC distribution (K9 & Feline)
Neutro: 55-85%
Lymph: 15-45%
Mono/Eos: 0-5%
Basos: RARE!
WBC distribution (horses)
Neutro & Lymph: 50;50%
Monos & Eos: 0-5%
Basos: RARE!
WBC distribution (cows)
Lymph: 55-85%
Neutro: 15-45%
Monos & Eos: 0-5%
Basos: RARE!
Normal RBC (K9)
5-10 (X 10^6)ul
Normal RBC (Feline)
5-11 (X 10^6)ul
Normal PCV (K9)
37-55%
Normal PCV (Feline)
30-45%
Normal TP (K9)
5.0-7.0 g/dl
Normal TP (feline)
5.0-8.0 g/dl