The person having benign prostatic hyperplasia (BPH) should be watched at the time of urination. The loss of projectile stream and dribbling of urine are good findings in favor of this diagnosis.
1. Examination of urine
The urine should be examined for evidence of infection, blood and for presence of sugar (to exclude diabetes). The urine should be cultured and tested for sensitivity to different antibiotics.
2. Examination of blood
Serum urea and creatinine should be performed to assess renal function besides the usual blood count, hemoglobin estimation and ESR.
3. Examination of prostate specific antigen (PSA)
PSA is a glycoprotein, whose function is to facilitate liquefaction of semen.
4. Straight X-ray
It is of not much help.
5. Excretory urography
It is highly important and should be performed in all cases except where there are signs of renal failure and where the blood urea is above 60mg%. This investigation helps to establish whether bladder outflow obstruction is present or not. The intra-vesical pressure, the bladder capacity and recordings of residual urine may be obtained easily.
encroachment of the prostate may be revealed by a smooth filling defect at the bladder neck.
6. Cystoscopy
This investigation is of great value. With this urethra is inspected and enlargement of the prostatic lobes can be assessed. Residual urine can be measured. Marion’s sign is always positive. In normal individual, the internal urethral meatus and ureteric orifice are not visible in the same cystoscopic field. But in case of prostatic enlargement, this is possible, as the urethral opening is pushed up into the bladder.
7. Ultrasonography (USG)
This can detect the size of prostate most accurately. This can also indicated if there is swelling of kidney due to BPH. Due to progress made in USG need for excretory urography has diminished.
8. Trans-rectal ultrasound scanning
This imaging technique offer accurate estimation of prostatic size. It is probably more effective in detection of associated early prostatic cancer. It is used when PSA levels are high or the surface of the prostate is hard and irregular.
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