Exam 1 - Module 4 Flashcards
what are the chief functions of blood
- supporting cellular metabolism
- removing cellular waste products
- defense against invading infection
- maintenance of acid-base balance
two major groups of plasma proteins
albumin (more common)
globulin
Fibrinogen
most plentiful of the clotting factors and is the precursor of the fibrin clot
plasma
complex aqueous liquid containing a variety of organic and inorganic elements
serum
plasma differs from serum in that serum is free of the clotting proteins. the clotting proteins interfere with diagnostic test so the serum are typically the values we see in test results.
erthryocytes
red blood cells
leukocytes
white blood cells
what is the primary responsibility of erythyocytes
tissue oxygenation - they carry the hemoglobin
- do not contain a nucleus or mitochondria
what is the primary responsibility of the leukocytes
defend the body against organisms that cause infection and remove debris including dead or injured host cells
thrombocytes
platelets
function of thrombocytes
essential for blood coagulation and control of bleeding
formed in the bone marrow
hematopoiesis
production of blood cells
erythropoiesis
development of red blood cells
hemostasis
arrest of bleeding by formation by formation of blood clots at sites of vascular injury.
lab value - hemoglobin
13 - 17 g/dL - men
11.5 - 15.5 g/dL - women
lab value - hematocrit
40%
high = dehydrated
low = fluid overload
lab value - platelet count
150-400 (103/mm3)
or
150,000 - 400,000 /mcL
high = issue with clotting
low = susceptible to bleeding
hematocrit
how many cells are in the plasma and blood volume itself.
lab value - erythrocyte
4.4 - 5.7 million cells/mcL serum
lab value - leukocytes
8,000 cells/mcL
high = infection
low = you are at risk for gettin an infection
anemia
reduction of the total number of erythrocytes in circulating blood or a decrease in the quality or quantity of hemoglobin.
3 things anemias commonly result from
1 - impaired erythrocyte production
2 - blood loss (acute or chronic)
3 - increased erythrocyte destruction
4 - combination of these 3 factors
cytic
refers to size
chromic
refers to hemoglobin content
anisocytosis
assuming various sizes
poikilocytosis
assuming various shapes