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Abstract
We describe a validated radioimmunoassay for prealbumin in urine. Using timed overnight urine samples, the normal reference range was less than 10-148 micrograms/L; or less than 1.8-9.6 micrograms/mmol creatinine, excretion in women being significantly greater than in men (P < 0.05); or less than 7.3-114 ng/min with no significant difference in excretion rate between the sexes. Urines exhibited loss of immunoreactivity after storage at -20 degrees C and thawing. No such loss occurred after storage for 4 weeks at 4 degrees C or room temperature. The urinary excretion of prealbumin was highly correlated with that of albumin (r = 0.85), and clearance relative to creatinine was 2 x 10(-6), the same order as that of albumin.
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Schedule a callMore From: Annals of Clinical Biochemistry: International Journal of Laboratory Medicine
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