PMID: 8453650Feb 5, 1993Paper

Albuminuria after acute oral administration of proteins in patients with renovascular hypertension

Casopís lékar̆ů c̆eských
J StríbrnáV Lánská

Abstract

In a group of 19 patients with renovascular hypertension the effect of a morning snack comprising meat (1 g protein per 1 kg body weight) on urinary albumin excretion was assessed. Concurrently the plasma creatinine concentration (Pcr) was examined which varied between normal and 260 mumol/l and the creatinine clearance (Ccr). After administration of an acute protein load the mean Ccr value increased by 23%. The albumin excretion, however, did not change substantially, as compared with the previous collection period (mean 17 and 18 micrograms/min). Microalbuminuria was recorded in 31% of the patients and its prevalence was directly related to the increasing Pcr value. The results revealed that an acute protein load did not increase albuminuria although the rise of Ccr was significant. The variability of albumin excretion in the course of the day is, however, influenced also by other factors and for assessment of microalbuminuria therefore examination of 24-hour urine samples should be preferred.

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