Alterations in Hematological Functions Prt. 3 Flashcards
Multiple Myeloma (MM)
B cell cancer characterized by malignant proliferation of plasma cells that infiltrate bone marrow and aggregate into tumor masses in the skeletal system
what happens in patients with Multiple Myeloma?
Because of the large number of malignant plasma cells, an abnormal antibody called M-protein becomes the most prominent protein in the blood
What type of proteins does the myeloma frequently produce?
Bence Jones Proteins
What is found in the urine of patients with MM and how is this dangerous?
Immunoglobulins or proteins. It is toxic to renal cells and may cause renal failure
Signs and Symptoms of Multiple Myeloma?
- -Hypercalcemia (dues to release of calcium due to breakdown of the bones)
- -renal failure
- -bone lesions
- -Bone pain may be first symptoms
CRAB and A/G reverse: C - Calcium (hypercalcemia) R - Renal Failure ( increase globulin) A - Anemia B - Bone Pain --A/G Reverse: Albumin decreases, Gloobulin increases
Thrombocytopenia, Immune (idiopathic) thrombocytopenic purpura (ITP), Heparin-Induced Thrombocytopenia (HIT), and Thrombotic Thrombocytopenia Purpura (TTP) are all what?
Disorders of Platelets
Thrombocytopenia
The decrease in the number of circulating platelets in the blood
** <150,000/mm^3
What are the normal levels of platelets?
150,000mm^3 - 450,000mm^3
What do these values in relation to Thrombocytopenia mean?
<50,000mm^3
<15,0000mm^3
<10,000mm^3
<50,000mm^3: hemorrhage from minor trauma
<15,0000mm^3: spontaneous bleeding w/o trauma
<10,0000mm^3: severe bleeding
Causes of Thrombocytopenia
- -Hypersplenism-overactive spleen function that results from splenomegaly. Causes RBC to be destroyed, leukopenia, and thrombocytopenia.
- -Autoimmune disease
- -Hypothermia
- -Viral or bacterial infections that cause disseminated intravascular coagulation (DIC)
- -Heparin-Induced Thrombocytopenia (HIT)
- -HIV
- -Drugs
- **Splenomegaly: enlarged spleen, can result in abnormalities w/ in the blood
What is the most common sign you’ll see when there are not enough platelets?
Bruising
Petechia vs Purpura
Petechia: Small bleeds that are less than 3mm (small red dots)
Purpura: Reddish-purple bleeds that are greater than 3 mm (looks like bruises)
Ecchymosis vs Epistaxis
Ecchymosis: Ecchymosis occurs when blood leaks from a broken capillary into surrounding tissue under the skin. This causes discoloration. Large, soft tissue bleeding
Epistaxis: aka nose bleeds; acute hemorrhage of the nostril, nasal cavity, or nasopharynx
What do plasma cells do?
Plasma cells help you fight infections by making antibodies that recognize and attack germs.
Thrombus vs. Embolus
Thrombus: A stationary clot that is attached to a vessel wall
Embolus: A thrombus that has detached from the vessel wall and is traveling through the bloodstream.