Changes when RBC’s Age
INCREASED LEVELS
DECREASED LEVELS
Membrane-bound IgG
Density of cell
Spheroidal shape
MCHC
Internal viscosity
Agglutinability
Intracellular Na
++
levels
Methemoglobin (Fe
+++
) levels
Oxygen affinity of hgb
Enzyme activity
Sialic acid (negative charge)
Deformability
MCV
Phospholipid levels
Cholesterol levels
Protoporphyrn levels
Intracellular K
+
levels