[Clinical importance of sampling method in leucocyturia (author's transl)]

Area of Science:

• Clinical diagnostics
• Urology
• Medical laboratory science

Context:

• Investigating diagnostic accuracy in inpatient settings.
• Evaluating the influence of sample collection methods on clinical test results.
• Assessing the reliability of urine sample types for detecting leucocyturia.

Purpose:

• To determine the clinical significance of urine sample collection methods.
• To compare the detection rates of leucocyturia using spontaneous, catheter, and midstream urine specimens.
• To highlight the impact of specimen acquisition on diagnostic outcomes.

Summary:

• A study involving 507 inpatients revealed that spontaneous urine samples detected leucocyturia in 105 patients, while catheter or midstream samples collected later identified it in only 30.
• Direct comparison in 68 patients showed spontaneous samples identified leucocyturia in 20 cases not confirmed by other methods.
• These findings underscore the critical role of urine sample collection technique in accurately estimating leucocyturia.

Impact:

• Highlights the importance of standardized urine collection protocols for accurate leucocyturia diagnosis.
• Suggests spontaneous urine collection may be superior for initial leucocyturia screening.
• Informs clinical practice regarding optimal methods for urine specimen acquisition in diagnostic testing.