Chapter 17 Blood Lab
What is the average life span of a RBC? How does its anucleate condition affect this life span:
100-120 days When they are ATP deserve exhausted the membrane of the cells begin to fragmented and without DNA it can not produce protein
hemoglobin determination high- polycythemia dehydration low- anemia, iron deficiency
13-18 g/100 ml
coagulation time high- hemophilia, leukemia low- embolism, thrombus
2-6 minutes (normal)
bleeding time high- deficient or abnormal platelets low- high platelet count
2-7 min (IVY) 0-5 min (DUK)
Total RBC count high-polycythemia low- anemia, bone marrow ca
4-6 million
Hematocrit high- polycythemia, dehydration low- anemia
42-52 Volume %
Total WBC count high-infection, poisoning low-decrease protection of disease
5,000-11,000/uL
What is the blood volume of an average-size adult male? _________ liters; adn average adult female? _______ liters
5-6 and 4-5
If your blood agglutinates with anti-A but not anti-B sera, your ABO blood type would be. To what ABO group could you donate blood? From which ABO donor type could you receive blood? Which ABO blood type is most common? __________ Least common? __________
A A A,O O, AB
______ are the leukocytes responsible for releasing histamine and other mediators for inflammation
Basophils
What is the body's natural anticoagulant?
Heparin
Name two anticoagulants used in conducting the hematologic tests
Heparin and EDTH
What blood type is theoretically considered the universal donor? Why?
O because RBC are without A & B antigens
Three type of formed elements found in blood include erythrocytes, leukocytes, and:
Platelets
monocyte, lymphocyte
agranulocytes
red blood cells
also called erythrocyte; anucleate formed eledment
condition of too few RBC's or of RBC's with hemoglobin deficiencies
anemia
Blood typing is based on the presence of proteins known as _______ on the outer surface of the red blood cell plasma membrane
antigens
Platlets
cell fragments
Monocytes
exits a blood vessel to develop into a macrophage
neutrophil, basophil, eosinophil
granulocytes
Eosinophil
involved in destroying parasitic worms
abnormal increase in the number of WBC's
leukocytosis
Abnormal decrease in the number of WBC's
leukopenia
The normal hematocrit value for ________ is generally higher than that of the opposite sex
males
The least numerous but largest of all agranulocytes is the
monocyte
Most numerous leukocyte
neutrophil
What determines whether blood is bright red or dull brick red?
oxygen
monocyte, neurophil, eosinophil
phagocytic leukocytes
Abnormal increase in the number of RBC's
polycythemia
megakaryocyte
precursor cell of platelets
Plasma
primarily water, noncellular; the fluid matrix of blood
Lymphocyte
produces antibodies
also called an erythrocyte; anucleate formed element
red blood cell
Basophil
release histamine; promotes inflammation
what is an anticoagulant?
something that prevents blood clotting
eosinophil, basophil, neutrophil, monocyte, lymphocyte
the five type of white blood cells
RBC
transport oxygen
