What is hematocrit?
The ratio of the volume of RBCs to the volume of the whole blood
What is anemia?
Decrease in total red cell mass; reflected by hematocrit and hemoglobin
What is counting platelets important for identification of?
Hemostatic abnormalities like Coagulopathies
What indicates normocytic anemia?
Acute hemorhage indicated by a normal MCV. Just losing blood.
What is indication for microcytic anemia?
This is an iron deficiency and is indicated by a decreased MCV (mean corpuscular volume)
Macrocytic anemia is indicated by what?
This is a B12 deficiency and is refelcted by an increased MBV.
How is ESR measured?
It is the speed that RBCs fall in a tube under gravity and reflects the amount of negative charge.
-Acute phase reactants promote RBC separation and a more rapid fall rate in the test.
So high ESR can be increased inflammation.
-Should use with a CRP to confirm.
What does total leukoyte count include?
Includes PMNs, lymphocytes, monocytes, eosinophils, basophils
-left shit reflects increase in bands, indicating these cells have been mobolized from the bone marrow.
What is increased MPV a sign of, what about decreased MPV?
Increased MPV is a sign of platelet loss due to peripheral destruction
-decreased MPV is most often marrow suppression