ESR (RBC sed rate) Quiz
Preview:
Increasing levels of plasma proteins (primarily fibrinogen, alpha globulins, or gamma globulins)
A. fall faster,
increasing ESR
B. fall slower,
decreasing ESR
allowed to sediment at an angle of 18º and read at the appropriate time, the total analysis time is 20 minutes
A. Westergren method
B. Modified Westergren method
C. Alifax Roller 20-Sysmex
D. all of the above
Specimens needs EDTA collection
A. Wintrobe or Modified Westergren
B. true Westergren
Automated ESR Methods
Roller Principle
A. measures RBC aggregation and extrapolates the sedimentation rate
B. degree of settling of RBCs in plasma in an anticoagulated specimen during a specific time
first 10 minutes, initial period of aggregation, rouleaux is formed
A. Lag phase
B. Decantation phase
C. Packing phase
usually performed in Chemistry or Immunology Dept of Laboratory
A. CRP
C-Reactive Protein Test
B. ESR
Erythrocyte Sedimentation Rate
plays a part in your immune response by interacting with your body’s complement system
A. CRP
C-Reactive Protein Test
B. ESR
Erythrocyte Sedimentation Rate
usually changes more rapidly, because it is made by the liver and secreted hours after the beginning of infection or inflammation
A. CRP
C-Reactive Protein Test
B. ESR
Erythrocyte Sedimentation Rate
first 24 hours of a disease process, the ____ may be normal and ____ elevated
A. ESR
CPR
B. CPR
ESR
C. Acute Phase Reactants,
CPR
D. ESR,
Acute Phase Reactants
1.Tilting the tube
2. Increasing the length of the tube
3. Temperature above room temp
A. fall faster,
increasing ESR
B. fall slower,
decreasing ESR
period of fast settling, usually lasts about 40 minutes
A. Lag phase
B. Decantation phase
C. Packing phase
Macrocytes
A. fall faster,
increasing ESR
B. fall slower,
decreasing ESR
returns to normal, within a day or so, if the focus of inflammation is eliminated.
A. CRP
C-Reactive Protein Test
B. ESR
Erythrocyte Sedimentation Rate
will remain elevated for several days until excess fibrinogen is removed from the serum
A. CRP
C-Reactive Protein Test
B. ESR
Erythrocyte Sedimentation Rate
test is specific for a specific disease. i.e. Rheumatoid Arthritis
A. Acute Phase Reactants
B. Erythrocyte Sedimentation Rate
C. C-Reactive Protein
D. none