4 glasses sample

The 4-glasses sample is a method for diagnosing chronic prostatitis . Although it is an essential element of prostatitis diagnosis, it is rarely used because it is complex and therefore relatively expensive. In practice, prostatitis diagnoses are mostly based only on urine or ejaculate examinations .

procedure

The following four samples are taken:

1st urine - the first 10 ml of voided bladder (VB1)

2. Midstream urine - voided bladder - VB2

→ Now a prostate massage takes place

3. Prostate expression (EPS)

4. Urine after prostate massage (voided bladder - VB3)

evaluation

The presence of uropathogenic bacteria or leukocytes in the urine sample VB1 suggests urethritis .

Uropathogenic bacteria in the urine sample VB2 indicate cystitis .

If the urine cultures (VB1 + VB2) have negative or VB1, and VB3 a comparable number of uro -pathogenic bacteria and the EPS is positive, is of a chronic assumed bacterial prostatitis.

source

• S. Lenk: Diagnosis of chronic prostatitis . In: Urologist [A] . tape 40 , no. 1 , January 2001, ISSN  0340-2592 , p. 9-11 , doi : 10.1007 / s001200050425 .

This article is about a health issue. It is not used for self-diagnosis and does not replace a diagnosis by a doctor. Please note the information on health issues !