2-Polycythemia Flashcards
0
Q
What is the most common cause of hemoconcentration?
A
Dehydration
1
Q
What is the term for an increased red cell concentration (PCV)?
A
Polycythemia
2
Q
What are 2 possible causes of hemoconcentration?
A
- Dehydration (H2O loss)
- Fluid shifts
3
Q
What are 2 causes of redistribution polycythemia?
A
- Excitement (splenic contraction)
- Exercise
4
Q
What are 2 types of relative polycythemia?
A
- Hemoconcentration
- Redistribution
5
Q
What are 2 possible causes of absolute polycythemia?
A
- Increased erythropoietin
- Primary (polycythemia vera)
6
Q
What are 2 types of increased erythropoietin?
A
- Appropriate (chronic Hypoxia)
- Inappropriate (EPO secretion, renal cysts, tumors)
7
Q
What type of polycythemia can a myeloproliferative disorder cause?
A
Absolute primary polycythemia
8
Q
What happens to PCV and TP with dehydration?
A
Both increase.
