Coagulation and RBC disords Flashcards
Describe anemia
- decrease oxygen capacity of RBC
forms of anemia
- decrease RBC numbers
- Decrease hemoglobin numbers
s+S of anemia
-fatigue
- feeling cold
- paleness
- dizziness
Types of anemia
- iron deficiency anemia
- macrocytic anemia
what is iron deficiency
- decreased iron = decrease hemoglobin synthesis = RBC become microcytic and hypochromic
why iron deficiency occurs
- decrease iron intake
- decrease iron absorption
- decrease HCL
- increase demand for iron
what is macrocytic anemia
-RBC large but immature + decrease RBC numbers
why macrocytic occurs
- decrease folic acid
- increase loss of folic acid
- increase demand
pathophysiology of disseminated intravascular coagulation
- wide spread of blood clots through vascular system
when does disseminated intravascular coagulation happen
Severe endothelial damage (include obstetric complications, physical trauma, malignancy, sepsis, hemorrhage)
Triggers increase release of tissue factor (released from damaged tissue to stimulate clotting) = increase pro-coagulation/decrease anti-coagulations = excessive coagulation response = clotting occurs throughout vasculature =
One of the following
tissue ischemia = keep stimulating excess coagulation response = causes damage
increase plasmin = increase fibrinolysis = hemorrhage = hypovolemic shock
Coagulation factors all used up = hemorrhage = hypovolemic shock