Question
click below
click below
Question
Normal Size Small Size show me how
Keele-Ch.14
Gabby Keele
Question | Answer |
---|---|
Whole blood is made of what 2 key componets? | blood plasma 55% and formed elements 45% |
Blood plasma is made of what 3 componets? | protein 7%, water 91.5%, and other solutes 1.5% |
What are the 3 main proteins found in blood? | albumins 54%, globulins 38%, and fibrinogen 7% |
What are the 6 solutes commonly found in blood? | electrolytes, nutrients, gases regulatory substances, vitamins, and waste products |
What is the definition of a formed element? | red blood cells, WBC's, and platelets |
The 3 classes of a formed element are: | WBC, RBC, and platelets |
What are the 5 classes of white blood cells? | nuetrophils, lymphocytes, monocytes, eosinophils, and basophils |
The relationship between the terms erthythocyte and erythropoesis | Near the end of erythropoiesis, an RBC precursor ejects its nucleus and becomes a reticulocyte. Erythrocytes contain hemoglobin and carry oxygen to blood. |
the relationship between reticulocytes and red blood cells | reticulocytes pass from red bone marrow into the bloodstream |
The role of nuetrophil | injest other cells |
The role of monocyte | replinish macrophages and move quickly |
The role of eosinphil | protect body |
The role of basophil | prevent blood clot and promotes blood flow to tissues |
The role of B, T and natural killer cells | B-make antibodies t-protects and reacts to immune system |
What is hemostasis? | A sequence of responses that stops bleeding when blood vessels are injured. |
What are the 3 methods of reduction of blood loss? | vascular spasm, platelet plug formation, and blood clotting |
What is a hemorrhage? | the loss of a large amount of blood from the vessels |
How do platelet plug formation aid in hemostasis? | can stop bleeding loss completely if the hole in a blood vessel is small enough |
How does vascular spasm aid in hemostasis? | reduces blood loss for several minuntes to hours during which time the other hemostatic mechanisms begin to operate. |
How does clotting aid in hemostasis? | prevents blood loss |
What is the difference between a thrombus and an embolus? | A thrombus is the clot itself and an embolus is a piece of debris transported by the bloodstream |
What is a pulmonary embolism and why is one dangerous? | The embolus ro become lodges in the lungs. May result in death. |
What makes one blood group different from another? | the presence or absence if various isoantigens |
How is type A blood different from type B blood? | Type A-antigen A Type B-antigen B |
How is type AB blood different from types A and B? | both antigen A and B |
What does an anti-A antibody do? What does an anti-B antibody do? | Antibody A; A antigens on surface of your RBC Antibody B; plasms in blood stream |
Who has an anti-B antibody? who does not? | type A, and AB has it. Type O and B doesnt. |
Who has an anti-B antibody? who does not? | type B and AB has it. Type O and A doesnt. |
What happends in an incompatible blood transfusion? | antibodies in the recipientd plasma bind to tge antigens on the donated RBC's. |
What is the differnce between RH+ and RH- blood? | RH+ have RH antigen (positive) RH- lack RH antigen (negative) |
What is anemia and whar are the symptoms of anemia? | a condition in which the oxygen carrying capacity of blood is reduced. symptoms: fatigue, cold, pale skin, |
What is the cause of iron-deficiency anemia? | inadequate absorbstion of iron, excessive loss of iron, or insufficiant intake of iron |
What is the cause of pernicious anemia? | insufficiant hemopoiesis resulting from an inability of the stomach to produce intrinsic factor |
What is the cause of hemorrhagic anemia? | excessive loss of RBC's through bleeding resulting from large wounds |
What is the cause of hemolytic anemia? | inherited defects or from outside agents such as parasites, toxins, or antibodies |
What is the thalassemia? | populations from countries bordering Med. Sea |
What is the cause of aplastic anemia? | destruction of the red bone marrow caused by toxins, gamma radiation, and certain medications that inhabit enzymes needed for hemopoisis |
What are the causes and symtoms of sickle cell anemia? | When HBS given up oxygen to the intersitial fluid, it forms long, stiff, rodlike structures that bend the erythocyte into a sickle shape. |
What are the causes and symtoms of hemophilia? | blood clotting factors, inherited deficiancy of clotting in which bleeding may occur. |
What are the causes and symtoms of leukemia? | accumilation of immature leukocytes |
Reticylocyte | Counting the volume of reiculocytes in a same of blood- meausures rate of erthtopoesis |
Hematocrit | Counting the % of a blood sample that is composed of RBCs. Diagnoses anemia. |
Differential WBC count | Count various forms of WBC to assess for infections and manufacure of WBCs |
Complete Blood Count | Measure volume of all blood componets, measures blood componets that are out of range. |
-emia | blood condition |
erythr(o)- | red |
gluc(o)- | sugar, glucose |
glyc(o)- | sugar, sweet |
hem(o), hemat(o) | blood, hemorrhage |
-rrhagia | hemorrhage, excessive discharge |
thromb(o) | blood clot |