lab 4 Flashcards
lymphoid nodule
a compact mass of lymphoid cells that appears as a large collection of purple circles.
Red pulp
a vascular tissue, and it forms the majority of the spleen.
White pulp
lymphatic tissue and the purple dots within it are stained nuclei of lymphoid tissue.
Hematocrit
the percentage of the total blood volume comprised of packed erythrocytes.
hematocrit formula
red cell column divided by total blood column multiplied by 100
Agglutinogens
the antigens on the erythrocyte surface that determine blood type.
Agglutinins
the antibodies that may be present in the plasma.
agglutination
antigen-antibody reaction which causes the antigen and antibodies to clump together.
Granulocytes
leukocytes that contain cytoplasmic granules and consist of neutrophils, eosinophils, and basophils.
Agranulocytes
leukocytes that lack cytoplasmic granules and consist of monocytes and lymphocytes.
normal range for neutrophils
55-70%
normal range for Lymphocytes
20-40%
normal range for monocytes
2-8%
normal range for eosinophils
1-4%
normal range for basophils
0.5-1%
Granulocytes
neutrophils
eosinophils
basophils
Agranulocytes
lymphocytes
monocytes
steps to get blood type
antiserum on blood typing tray
clean tip of finger w alcohol prep pad
punctured the tip of cleansed finger so that blood comes out
place drops of blood on each drop of antiserum
mix the wells with different picks
place tray in light box and rock side to side
look for agglutination.
steps for hematocrit
clean finger
puncture with sterile lancet
allow a good amount of blood on tip
hold capillary at a right angle and put it on the blood\
fill capillary tube at least 3/4
put finger at capillary tube end and seal the blood filled end with clay
place sealed tube in hematocrit centrifuge, sealed end of the capillary tube faces the outer edge of centrifuge plate
red cell column divided by total blood volume multiplied by a hundred
blood type A
type A antigen and anti-b antibodies
blood type B
type B antigen and anti-A antibodies
blood type AB
type A and B antigen and NO antibodies
blood type O
NO antigens and anti-A and anti-B antibodies
class hematocrit
47.1 M and 42.8 F
