2. Defined as errors which occur when non analytical
factors change the conc. of analytes,so the result
do not reflect real the condition of the patient.
24. BIOLOGICAL INFLUENCES
BETTER AGREEMENT BETWEEN SERUM CONC OR
ACTIVITIES OF CONSTITUENTS IN MONOZYGOTIC THAN
IN DIZYGOTIC TWINS.
IN WOMEN & BLOOD GR ‘O’- Hb CONC < OTHER BOOD GR.
25. AGE
NEW BORN-
-CHANGES RELATED TO INFANTS
ADAPTATION TO INDEPENDENT EXISTENCE
-R.B.C COUNT & Hb CONC. Hb F,
PHYSIOLOGICAL JAUNDICE, BLOOD GLUCOSE,
PLASMA AMINO ACID CONC.
CHILDHOOD TO PUBERTY-
-PLASMA PROTEIN ,
ADULT-
ELDERLY-
-CREATINE CLEARANCE, T3, INSULIN.