Do you have urinary problems? Let's learn about Urodynamic Testing in a simple way!

Do you sometimes feel like there's something wrong with your urinary system? Leaking a little urine when you laugh or cough, or having to go to the bathroom more often, or feeling like you haven't completely emptied your bladder after urinating... These things can sometimes make you uncomfortable. You don't have to put up with them thinking that these are normal things. Today, we're going to talk about a series of special tests that can help you find the exact cause of these problems.

What is Urodynamic Testing?

Simply put, `Urodynamic Testing` is not a single test, but a combination of several tests. Just like a technician checks whether a water tank or pipe system in our house is working properly, is blocked somewhere, or is leaking, with these tests your doctor is checking how well the lower part of your urinary system is working.

That is, it measures the function of parts such as your bladder , which is the bag that collects and stores urine , and the urethra .

The main things these tests measure are:

• How well the nerves and muscles in your bladder are working.
• How is the pressure in and around the bladder?
• When you urinate, how fast and how much urine comes out.

By looking at the results of these tests, your doctor can determine the exact cause of your symptoms and choose the most appropriate treatment.

Why are you being asked to do this test?

Your doctor may refer you for this test if you have persistent symptoms like these:

• Urinary incontinence: This means that you lose a little urine without realizing it. This can happen when you cough, laugh, sneeze, or lift something heavy.
• Frequent and urgent need to urinate: Needing to go to the bathroom many times a day, and suddenly having to urinate in an unbearable way.
• Feeling pain when urinating: Urinary tract inflammation or pain.
• Recurrent urinary tract infections (UTIs): If you keep getting UTIs, these tests can help find the underlying cause.
• Difficulty starting urination: When you try to urinate, urine does not come out for a while.
• Inability to completely empty the bladder (`Urinary Retention`): Feeling like the bladder is still full after you have finished urinating.
• Having a weak urine stream: The urine stream comes out very slowly, or it stops for a while and then starts again.

How do these tests work? Let's look at them one by one.

There are several types of urodynamic tests. Sometimes your doctor may decide to do more than one test at the same time to get a complete picture of your condition. Let's look at some of the main types of tests.

Cystometry test

This is the most common test. After emptying your bladder, your doctor or nurse will carefully insert a very thin, flexible tube (catheter) into your urethra. At the end of the tube is a small sensor (manometer) that measures pressure. Sometimes another tube may also be inserted into your rectum to measure pressure in your abdomen.

Then, a warm, sterile fluid is slowly filled into your bladder through this tube. At this point, you may be asked to cough and strain a little. Watch how the pressure in your bladder changes. When your bladder is full, you should tell yourself that you need to urinate. Finally, you will be asked to urinate, and the pressure will be measured at that time.

Uroflowmetry test

This is a very simple test. When you come in for this, you will be told to drink water until you have a good urine flow. All you have to do is urinate into a special machine. It is like an electronic toilet. As you urinate, the machine measures the speed and volume of your urine stream and displays it as a graph. The results can tell you if your bladder muscles are weak or if there is a blockage somewhere.

Postvoid Residual Measurement

This measures how much urine is left in your bladder after you've finished urinating. This is usually done with an ultrasound scan . It's like a scan to see if a baby is in the womb, and it's painless. Or, sometimes a thin tube (catheter) is inserted and the remaining urine is taken out and measured.

Things to know before and after the test

Do I need to do any preparation before the test?

In most cases, no special preparation is needed. Some tests require a full bladder, so you may be asked to drink some water before coming in. If you are taking any medications, be sure to ask your doctor if you need to stop taking them before the test.

What happens after the test?

You may experience some discomfort or burning when urinating for a few hours after the test. You may also notice a few drops of blood in your urine. This is normal and should not be alarmed. You can do the following to help reduce this discomfort:

• Drink at least two glasses of water per hour.
• Take a bath with warm water.
• Place a warm, damp cloth over the area where the urine comes out.

Sometimes the doctor may give you an antibiotic to prevent infection.

Some frequently asked questions

How long does this test take?

It usually takes between 30 and 45 minutes.

Does this hurt?

Urodynamic tests should not be painful. You may feel some discomfort when the tube is inserted, but it is not painful. There may be some mild burning for about 24 hours after the test.

Is there any risk?

These are very safe tests. The only small risk is that there is a very small chance of developing a urinary tract infection (UTI) because a tube is inserted into the urethra. To prevent this, the doctor sometimes prescribes antibiotics.

Are you doing it out of your mind?

Adults usually do not need sedation or anesthesia. However, if a young child is having this test, they may be given a very light anesthetic to keep them calm.

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