Hemoglobin Facts - 2
Errors in cyanmethemoglobin assay:
Cause
Effect
Remedy
WBC
> 30.0 x 109/L
Increased Hb
Centrifuge sample
Lipemic
specimen
Increased Hb
Make larger dilution
Hb S & Hb C
Decreased Hb
Dilution using distilled
water
Abnormal
globulins
Increased Hb
Add potassium carbonate
Carboxyhemoglobin
Decreased Hb
Increase incubation time
