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How does the catheter method for a post-void residual urine test work?

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A nurse will ask you to pee right before the test. Then they’ll give you medicine to numb the area. They’ll slide the catheter through your urethra, take out the urine in your bladder, and measure how much was taken out.

There are a few things to think about with the catheter method:

  • It may feel uncomfortable.
  • It might make you more likely to get an infection.
  • It’s rare, but it could injure your urethra.

From: What Is a Post-Void Residual Urine Test? WebMD Medical Reference

SOURCES:

Reviews in Urology : “Evaluation of Voiding Dysfunction and Measurement of Bladder Volume.”

National Institute of Diabetes and Digestive and Kidney Diseases: “Urodynamic Testing,” “Urinary Tract Imaging.”

Ontario Health Technology Assessment Series: “Portable Bladder Ultrasound: An Evidence-Based Analysis.”

Canadian Family Physician: “Ultrasound bladder scanner presents falsely elevated postvoid residual volumes.”

Cleveland Clinic: “Bladder Outlet Obstruction.”

Reviewed by Minesh Khatri on February 10, 2020

SOURCES:

Reviews in Urology : “Evaluation of Voiding Dysfunction and Measurement of Bladder Volume.”

National Institute of Diabetes and Digestive and Kidney Diseases: “Urodynamic Testing,” “Urinary Tract Imaging.”

Ontario Health Technology Assessment Series: “Portable Bladder Ultrasound: An Evidence-Based Analysis.”

Canadian Family Physician: “Ultrasound bladder scanner presents falsely elevated postvoid residual volumes.”

Cleveland Clinic: “Bladder Outlet Obstruction.”

Reviewed by Minesh Khatri on February 10, 2020

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How does the ultrasound method for a post-void residual urine test work?

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