The significance of trace proteinuria.
Am J Nephrol
; 23(6): 438-41, 2003.
Article
en En
| MEDLINE
| ID: mdl-14583662
BACKGROUND: The clinical significance of a trace protein reading on urinalysis is unclear, and such a result is often ignored by the clinician. METHODS: We examined 185 samples of urine with trace proteinuria by both Chemstrips and sulfosalicylic acid testing, and compared the results with those of urinary albumin and total protein concentrations. RESULTS: Taking for the purposes of this study an arbitrary upper limit of normal of 20 mg/l for albumin and 100 mg/l for total protein concentration, we found abnormal albumin excretion in 87% and abnormal total protein excretion in 88% of trace samples. In this study, a negative urinalysis for protein excluded microalbuminuria in 87% and proteinuria in 78% of cases. CONCLUSION: Qualitative testing for protein by urinalysis has a high sensitivity and specificity for diagnosing or ruling out microalbuminuria. Trace proteinuria usually means microalbuminuria; negative proteinuria tends to rule it out.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Albuminuria
/
Enfermedades Renales
Tipo de estudio:
Diagnostic_studies
/
Qualitative_research
Límite:
Humans
Idioma:
En
Revista:
Am J Nephrol
Año:
2003
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Suiza