Interpreting urine dipstick tests in adults | 合法醫療器材資訊網

Urinedipsticksarearapidandrelativelysensitive(>80%)methodfordetectinghaematuriainafreshlyvoidedsampleofurine.2However,aswellasintactred ...

Haematuria can be classified as visible, also known as macroscopic or gross haematuria, or non-visible, also known as microscopic haematuria.1 Haematuria can originate from numerous sites including the kidney, ureter, bladder, prostate, urethra or other structures within the urogenital tract.

Urine dipsticks are a rapid and relatively sensitive (>80%) method for detecting haematuria in a freshly voided sample of urine.2 However, as well as intact red blood cells (RBC), urine dipstick may also detect haemoglobin from lysed RBC caused by haemolytic conditions, or myoglobin from crush injuries, rhabdomyolysis or myositis. As a consequence, reports of specificity range from 65 – 99%.3 Significant haematuria occurs at readings of 1+ or above, and trace levels should be considered negative.1

Urine microscopy is...