Evaluation of random urine sodium and potassium compensated by creatinine as possible alternative markers for 24 hours urinary sodium and potassium excretion.

摘要: Sodium and potassium intake was assessed on the basis of its respective excretion levels in 24 hr urine samples. However, owing to inconvenience collection, we evaluated random spot for alternative sodium markers. We included 250 patients who submitted hr- clinical tests. 22 showed creatinine <500 mg/day were excluded, because these samples possibly resulted from incomplete collection. Moreover, excluded their use diuretics during collection period. observed significant correlations between both sodium/creatinine (r=0.34, P<0.0001) sodium/specific gravity unit (SGU) ratios (r=0.19, P=0.007) Similarly, potassium/creatinine (r=0.47, potassium/SGU (r=0.28, significantly correlated. Although estimated a correlation with excretion, respectively, further studies are required develop test individualized monitoring excretion.