COMP Conepts

Question 1

What happens in high altitude?

Answer 1

pO2 decreases
cerebral vessels dilate
increase ICP
Herniation can occur

Question 2

Factors that lead to increased flow

Answer 2

CNS: increased pCO2; decreased pO2 
Lungs; increased pO2
Muscles: increased pCO2; decreased pH 
CV: adenosine 
Skin: increased temp; increased pCO2 
GI: food, esp fats 
Renal: increased PGE2; dopamine; ANP

Question 3

Direct Coombs test

Answer 3

detects antibodies DIRECTLY on the surface of RBC

used to detect Warm (IgG) and
Cold (IgM) agglutinin dz

OR

used to screen babies for hemolytic dz of the newborn

Question 4

positive nitrogen balance

Answer 4

amino acid (AA) intake > excretion
examples:
growth
pregnancy

Question 5

Indirect Coombs test

Answer 5

detect antibodies IN the plasma

used to screen for antibodies in blood transfusion
used to screen mom in hemolytic dz of new born