Chapter 3 Flashcards
What is hematopoiesis?
Process of forming blood
What is plasma?
Liquid protein
What are leukocytes?
White blood cells
What are erythrocytes?
red blood cells
What are the 2 components of erythrocytes?
hemoglobin and hematocrit
What is the purpose of hemoglobin?
the oxygen carrying component
What is the purpose of hematrocrit?
amount of blood volume occupied by erythrocytes
What are thrombocytes?
platelets
What is hemostasis?
stops the blood flow
What is normal hemostasis?
Normal when it seals a blood vessel to prevent blood loss and hemorrhage
what is abnormal hemostasis?
Abnormal when it causes inappropriate clotting or when clotting is insufficient to stop blood flow
What are the 5 stages of hemostasis?
- Vessel spasm
- Formation of platelet plug
- Blood coagulation
- Clot retraction
- Clot dissolution
What is the role of leukocytes?
key players in the inflammatory response and in fighting infections
What are the normal ranges of leukocytes?
5,000 to 10,000 cells/mL3 blood
What is leukopenia?
decreased levels of leukocytes
What is leukocytosis?
increased levels of leukocytes
What are neutrophils?
a type of leukocyte and the first to arrive at the site of infection
What is the normal range of neutrophils?
2,000–7,500 cells/mL
What is neutropenia?
When Neutrophils < 1500 cells/mL
What are the causes of neutropenia?
Increased usage Drug suppression Radiation therapy Congenital conditions Bone marrow cancers Spleen destruction Vitamin deficiency
What are the manifestations of neutropenia?
- Depends on severity and cause
- Infections and ulcerations, especially of the respiratory tract, skin, vagina, and gastrointestinal tract
- Signs and symptoms of infection (e.g., fever, malaise, and chills)
How do you diagnose neutropenia?
neutrophil levels and bone marrow biopsy
What is the treatment for Neutropenia?
antibiotic therapy and hematopoietic growth factors
What is infectious mononucleosis?
“Kissing disease”—oral transmission.
What causes infectious mononucleosis?
Caused by Epstein-Barr virus in the herpes family.
Do you have infectious mononucleosis?
yes; Once the disease is eliminated, a few B cells remain altered, giving the individual an asymptomatic infection for life and the potential to occasionally spread the EBV to others.
What are the manifestations of infecticous mononucleosis?
- Insidious onset.
- Incubation = 4–8 weeks.
- Initially see anorexia, malaise, and chills.
- Manifestations intensify to include leukocytosis, fever, chills, sore throat, and lymphopathy.
- Acute illness usually lasts 2–3 weeks; may not fully recover for 2–3 months.
What are the treatments for inefectious mononucleosis?
symptomatic and supportive
What are lymphomas?
Cancers that affect the lymphatic system
What are the 2 main types of lymphoma cancer?
Hodgkins and Non-Hodgkins
Is hodgkins or non-hodgkins more common?
Non-hogdkins
What is hodgkins lymphoma?
Solid tumors with the presence of Reed-Sternberg cells
Where does hodgkins orginate?
Typically originate in the lymph nodes of the upper body
Is hodgkins treatable?
very with treatment
What are the manifestations of hodgkins and non-hodgkins?
painless enlarged nodes, weight loss, fever, night sweats, pruritus, coughing, difficulty breathing, chest pain, recurrent infections, and splenomegaly
How is hodgkins diagnosed?
physical examination, presence of Reed-Sternberg cells in a lymph node biopsy, complete blood count, chest X-rays, diagnostic imaging (CT scan and MRI), and bone marrow biopsy
What is the treatment for hodgkins and non hodgkins?
chemotherapy, radiation, and surgery
Is Non-hodgkins treatable?
yes, but not a good prognosis
Where does non-hodgkins originate from?
Can originate in the T or B cells
Does non-hodkins lymphoma have Reed-Sternberg cells?
NO
How commom is Leukemia?
second most common blood cancer
What is leukemia?
cancer of the leukocytes
What happens with leukemia?
Leukemia cells abnormally proliferate, crowding normal blood cells
What are the risk factors of leukemia?
exposure to chemical, viral, and radiation mutagens; smoking; use of chemotherapies; certain disease conditions (e.g., Down syndrome); and immunodeficiency disorder
What are the types of Leukemia?
Acute lymphoblastic leukemia, Acute myeloid leukemia, Chronic lymphoid leukemia, Chronic myeloid leukemia
Facts about Acute lymphoblastic leukemia
- Affects primarily children
- Responds well to therapy
- Good prognosis
Facts about Acute myeloid leukemia
- Affects primarily adults
- Responds fairly well to treatment
- Prognosis somewhat worse than that of acute lymphoblastic leukemia
Facts about Chronic lymphoid leukemia
- Affects primarily adults
- Responds poorly to therapy, yet most patients live many years after diagnosis
Facts about Chronic myeloid leukemia
- Affects primarily adults
- Responds poorly to chemotherapy, but the prognosis is improved with allogeneic bone marrow transplant
What are the manifestations of leukemia?
leukopenia, anemia, thrombocytopenia, lymphadenopathy, joint swelling, bone pain, weight loss, anorexia, hepatomegaly, splenomegaly, and central nervous system dysfunction
How do you diagnose Leukemia?
a history, physical examination, complete blood count, and bone marrow biopsy
What is the treatment for Leukemia?
chemotherapy and bone marrow transplant
What is Multiple Myeloma?
- Plasma cell cancer (third most common)
- Excessive numbers of abnormal plasma cells in the bone marrow, crowding the blood-forming cells and causing Bence Jones proteins to be excreted in the urine
- Bone destruction leads to hypercalcemia and pathologic fractures
Is multiple myeloma caught early?
NO, often well advanced upon diagnosis
What are the manifestations of multiple myeloma?
Silent onset
Include: anemia, thrombocytopenia, leukopenia, decreased bone density, bone pain, hypercalcemia, and renal impairment
How is Multiple Myeloma diagnosed?
serum and urine protein, calcium, renal function tests, complete blood count, biopsy, X-rays, CT scan and MRI
What is the treatment for multiple myeloma?
chemotherapy and complication management
What is erythropoiesis?
red blood cell disorder;
- Production of erythrocytes
- Regulated by erythropoietin
- Occurs in bone marrow
What is anemia?
Insufficient numbers of RBC’s or an Insufficient amount of hemoglobin in the blood
What are the normal ranges of RBC?
Men 4.5-6 x 106/L
Women 4-5.5 x 106/L
What are the normal ranges of Hemoglobin?
Men 14-18 g/dl
Women 12.0-16 g/dl