Hematology Flashcards
What are the 2 components of blood?
Cellular component / formed elements
Fluid components / plasma
What cells do formed elements originate from?
Hemocytoblasts
What are the types of formed elements?
Erythrocyte
Leukocyte
Thromboblasts
What is the formation of erythrocytes called?
Erythropoiesis
What cells are erythrocytes formed from?
Hemocytoblasts
What is the shape of a mature erythrocyte ?
Biconcave discoid shape
How does Rbc come biconcave discoid shaped?
By losing its nucleii during erythropoiesis
Erythropoiesis is catalyzed by what hormone from the kidney?
Erythropoietin
What produced erythropoietin?
Kidney
Oxyhemoglobin is formed by what?
Rbc and hemoglobin- transports oxygen through blood
What component of blood gives its bright red colour?
Oxyhemoglobin
Lifespan of RBC?
120 days
Graveyard of RBC?
Spleen
What happens to RBC in the spleen?
Gets digested by macrophages
What blood component releases bilirubin?
Heme after breakdown of hemoglobin
What is the function of RBC?
Transport of oxygen throughout the body
Formation of blood is called ?
Hematopioesis
Blood cells are called ?
Hematocyte
Immature blood cells are called?
Hematocytoblast
What is the benefit of the shape of RBC?
Easy movement through blood stream
What is required for heme to join globin?
RBC
Process of destruction of rbc is called?
Hemolysis
What happens to heme after hemolysis?
Heme releases iron to decompose and form bilirubin
Some recycle into transferring and then to ferritin
What happens to the globin part after hemolysis?
Globin is recycled to amino acids
Brown pigmentation of fecal matter is due to what?
Bile
WBC is called what?
Leukocyte
WBC is called what?
Leukocyte
Life span of leukocyte ?
12-19 days
Function of leukocyte ?
To fight against infections and foreign materials
What is the colour of leukocyte?
Colorless
What are the two classifications of leukocyte?
Granulocytes
Agranulocytes
What are the 3 types of granulocyte?
Basophil
Neutrophil
Eosinophil
What is the precursor cells of granulocytes ?
Myeloblast
What are the types of agranulocytes ?
Lymphocyte
Monocyte
What is the function of the enzyme found in granulocytes?
These enzymes are released and fights against infections.
What are monoblasts ?
Precursor cells of monocytes
What are the precursor cells of lymphocyte?
Lymphoblasts
Most abundant leukocyte ?
Neutrophils
% of neutrophil ?
40-70%
What is the first line responders among leukocytes ?
Neutrophils
How does neutrophil stain ?
Neutral on basic and acidic dye
What is primary function of neutrophil ?
Phagocytosis
What foreign materials does neutrophils predominantly target?
Bacterial and fungal
What is the 2nd most abundant type of granulocytes?
Eosinophils
What is % of eosinophils?
2-3%
How does eosinophils stain?
Brick red on acidic dye
What foreign body does eosinophils predominantly fight against?
Parasites
What are the least common type of granulocytes?
Basophils
What is the largest type of granulocyte ?
Basophils
How does basophil stain?
Stain to basic dye
Histamine, serotonin and heparin are induced by which leukocyte ?
Basophil
What are the types of lymphocytes?
B- cells
T-cells
NK cells
Where are lymphocytes found?
Lymph nodes
Main function of T-cells?
Direct attack during immune response
Possess memory of foreign body to be used later on
Main function of B-cells?
Make anti-bodies
Two types of T-cells ?
CD4+
CD8+
Main function of monocytes?
Phagocytosis
What are macrophages ?
Monocytes after they enter tissue are called macrophages
What are thrombocytes ?
Platelets
What are thrombocytes formed from ?
Megakaryocyte in bone marrow
Is megakaryocyte multinucleated ?
Yes
What are the precursor cells of megakaryocyte ?
Megakaryoblast
Which hormone is involved in production of thrombocytes ?
Thrombopoietin
What produces thrombopoietin?
Kidney and liver
Life span of thrombocytes ?
8-9 days
How many clotting factors ?
12
What minerals are used by liver to help in blood coagulation ?
Vitamin K and calcium
What makes up plasma ?
Water, sugar, proteins, hormones
What are plasma proteins?
Albumin, globulin, prothrombin, fibrinogen
Function of albumin in plasma ?
Osmotic balance
Function of globulin?
Become antibodies alpha, beta, gamma immunoglobulins
Function of fibrinogen and prothrombin?
Clotting
What is electrophoresis?
Process by which immunoglobulins can be separated
What is plasmaphoresis?
Process by which formed elements and plasma can be separated
What are the blood groups?
ABO blood group with or without Rhesus factor
Which blood group is universal recipient ?
AB
Why is AB blood group universal recipient ?
AB antigen and no antibody
What is universal blood donor ?
O
Why is O group universal donor?
No antigen, AB antibodies
Anemia is due to what?
Loss of ability of rbc to carry oxygen, or excessive hemolysis of rbc or less production of rbc
Anemia level in men ?
13-14g/dL
Anemia in woman ?
12-13g/dL
What is aplastic anemia?
No production of rbc due to damaged bone marrow
Hemolytic anemia
Excessive destruction of rbc
Iron deficiency anemia
Due to iron deficiency
Pernicious anemia
Vit b12 deficiency
Sickle cell anemia
RBC turns sickle shape and die faster
Hereditary spherocytosis?
RBC becomes sphere shaped leading to faster hemolysis
Macrocytic anemia
Abnormally large rbc
Microcytic anemia
Abnormally small rbc
Normocytic anemia
Low rbc low hemoglobin
Thalassemia is ?
Inability to produce hemoglobin
Abnormally shaped rbc with no hemoglobin is which condition?
Thalassemia or Cooley’s anemia
What is polycythemia Vera?
Excessive rbc production cancer
Erythremia?
Chronic polycythemia
Leukemia?
Cancer of wbc
Classification of leukemia?
Lymphocytic leukemia
Myelogenous leukemia
Which leukemia is most common in children?
Lymphocytic leukemia
Cancer of lymphocytes is called?
Lymphoma
What are the two types of lymphoma?
Hodgkins
Non-hodgkins
What is kahlers disease?
Myeloma
What is cancer of plasma cells?
Myeloma
Granulocytosis?
Abnormal increase in granulocytes in blood
Mononucleosis
Disease caused by increase in number of lymphocytes with enlarged cervical lymph nodes
What does Epstein bar virus cause ?
Mononucleosis
Systemic lupus erythematosus
Autoimmune disease
Hemophilia
Excessive bleeding due to lack of clotting factors
Types of hemophilia?
Hemophilia A - CF 8
Hemophilia B - CF 9
What is pinpoint hemorrhage ?
petechiae
Body destroys own platelets ?
Idiopathic thrombocytopenia purpura
What is the term for removing small amount of blood for medical testing?
Transfusion
Which blood vessels carry deoxygenated blood from body to RA?
Svc and Ivc
Which is protein part in hemoglobin?
Globin
Which condition results from deficiency of clotting factors in blood and leads to prolonged bleeding?
Hemophilia
Which is the medical condition which occurred when a portion of the heart muscle dies due to lack of blood supply?
Myocardial infarction
Which is a congenital heart defect where the aorta is abnormally placed to the right instead of left?
Tetrology of fallot
Which is a congenital heart defect where the aorta is abnormally placed to the right instead of left?
Tetrology of fallot
Most common type of secondary hypertension
Renal hypertension
Blood disorder characterized by too many rbc leading to increase blood clot ?
Polycythemia Vera