Translated Titles

Clinical Implications of Positive Occult Blood in Urine Dipstick Test




盧星華(Shing-Hwa Lu)

Key Words

血尿 ; 尿液分析 ; 泌尿系統疾病 ; hematuria ; urinalysis ; urological diseases



Volume or Term/Year and Month of Publication

2卷9期(2005 / 09 / 01)

Page #

774 - 778

Content Language


Chinese Abstract


English Abstract

Clinically, asymptomatic microscopic hematuria is a very common and important issue in which may be related to several kinds of diseases. Urine dipstick test provides a quick and inexpensive method for detecting occult blood in urine. Microscopically, less than three red blood cells under each high power field of centrifuged sediment should be interpreted to be normal. The clinical implication of positive urine dipstick test could be hematuria, hemoglobinuria or myoglobinuria. The sensitivity of urine dipstick test in identifying hematuria is over 90%, defined as more than three red blood cells per high power field of centrifuged sediment examined microscopically. On the other hand, the specificity of the dipstick for hematuria in comparison with microscopy is somewhat lower which reflecting a higher false-positive rate with the dipsticks. It remains controversial in screening the urological disorders based on the results of positive urine dipstick test. Many factors could have impact on the efficacy and accuracy of the screening of asymptomatic microscopic hematuria using urine dipsticks. Nevertheless, it seems to be cost effective using urine dipsticks for the screening of hematuria. Annually check of urine dipstick for the adult is recommended for the early detection of urological cancer.

Topic Category 醫藥衛生 > 醫藥衛生綜合