Enumerate three stages of ESR experiment.

1.	Enumerate three stages of ESR experiment.
Answer» Sedimentation is defined as settlement of red cells to the bottom with an upper plasma layer when anti coagulated blood is kept undisturbed for a period of time. There are three stages in which this occurs: 1) The stage of aggregation - This is the first stage when the red cells form rouleaux and is the most important stage in sedimentation. 2) Stage of sedimentation - is the phase of actual falling of the cells, the larger the aggregates formed in stage I, the faster the rate of fall. This is related to both weights to surface area. 3) The stage of packing - is the final one when individual cells and aggregates slow down due to crowding.

Answer»

Sedimentation is defined as settlement of red cells to the bottom with an upper plasma layer when anti coagulated blood is kept undisturbed for a period of time.

There are three stages in which this occurs:

1) The stage of aggregation - This is the first stage when the red cells form rouleaux and is the most important stage in sedimentation.

2) Stage of sedimentation - is the phase of actual falling of the cells, the larger the aggregates formed in stage I, the faster the rate of fall. This is related to both weights to surface area.

3) The stage of packing - is the final one when individual cells and aggregates slow down due to crowding.

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