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NHA EXAM PHLEBOTOMY

MEDICAL ASSISTANT NHA EXAM

QuestionAnswer
The average adult has how what amount of blood in his or her body? 10-12 pints (about 6 liters)
What system does blood transport through? Circulatory System
Review of Blood Step 1: The hear pumps blood through the lungs, where it collects oxygen
Review of Blood Step 2: Oxygenated blood is transported through arteries to the organs and tissues.
Review of Blood Step 3: Once oxygen is absorbed into these organs and tissues, deoxygenated blood is transported through veins to the kidneys, where harmful wastes are removed, then back to the heart, where the cycle starts again.
45% of blood is made of formed elements, which consist of: Erythrocytes(RBCs), Leukocytes(WBC) and Thrombocytes(Platelets).
55% of blood-liquid portion is known as: Plasma
Erythrocytes Red Blood Cells
Leukocytes White Blood Cells
Plasma The liquid portion of blood which contains fibrinogen
Fibrinogen A substance in plasma that when blood clots is transformed into fibrin.
Fibrin A sticky substance that traps all of the formed elements.
Centrifuge Used to separate the blood into the clot material and serum.
One of the functions of blood 1) Bllod brings oxygen and nutrients to all of the body's cells after it is pumped from the heart through the lungs
One of the functions of blood 2) Removes carbon dioxide and wastes from the cells after they have used the oxygen and nutrients
One of the functions of blood 3) On its return trip from the cells to the heart, the blood passes through the kidneys so the carbon dioxide and wastes can be removed and formed into urine for excretion.
The main transportation vehicle in the blood RBCs
Where are RBCs formed? Bone marrow
In a health individual how many RBCs are there? 4.5 to 5.5 million RBCs per cubic milliliter of blood
How long do RBCs live? For 100 to 200 day
After RBCs die, what happens? They are then removed from the body via the liver and spleen
Leukocytes WBCs
The body's main defense against dangerous microorganisms WBCs
Where are WBCs formed? In the bone marrow and the lymph system
How many WBCs are inside of a healthy individual? 5,000 to 10,000 per cubic millimeter of blood
Thrombocytes(Platelets) Function is to stop bleeding. They also carry fibrinogen, which sets off the coagulation process
How long do platelets live? 9 to 12
How many platelets does a healthy individual have? 250,000 to 450,000 platelets per cubic millimeter of blood
The formation of blood cells is called Hematopoiesis
What different sites are blood cells produced? Mainly they are produced in the bone marrow. Other sites for blood formation lymph node, spleen, thymus gland, and gastrointestinal tract
Created by: 100001037870109
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