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Retrograde Urethrogram (RGU)

Retrograde Urethrogram (RGU)

5000+ scans done & counting

A Retrograde Urethrogram (RGU) is a diagnostic imaging procedure used to examine the structure and integrity of the male urethra. The term "retrograde" implies the backward flow of contrast material through the urethra. The urethra is the tube that carries urine from the bladder out of the body. The RGU is most commonly used to diagnose conditions such as urethral strictures (narrowing), injury, congenital abnormalities, and other pathological conditions affecting the urethra.

Home Sample Collection Process
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Book your convenient slot
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Sample Collection by Phlebotomist
Sample Collection by Phlebotomist
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Reporting of the sample at lab
Reporting of the sample at lab
4
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Note: Home Sample Collection is only for Pathology lab tests.

During the RGU, a radiologist introduces a contrast agent or dye into the urethra through the tip of the penis. X-ray images are then taken as the dye fills the urethra. These images provide a detailed view of the entire urethra and can help detect any abnormalities such as narrowing, inflammation, diverticula (outpouchings), or trauma.

Specific Instructions:

Preparation for a RGU is typically straightforward. You may be advised to refrain from urinating for an hour or so before the test to ensure your bladder is reasonably full. You should let your doctor know if you are allergic to iodine, which is often used in the contrast dye. Allergies to this substance may cause reactions ranging from a rash to severe breathing difficulties. The procedure is generally done on an outpatient basis, and you should be able to return home the same day.

Pregnant women should avoid this test due to the radiation exposure. If you have active urinary tract infections or significant skin infection around the genital area, your doctor may postpone the test.

Frequently Asked Questions

During a RGU, a small catheter (thin tube) is inserted into the tip of the penis. A contrast dye is then injected into the urethra through this catheter, and X-ray images are taken as the dye fills and outlines the urethra.

The entire process typically takes around 30 minutes to an hour. This can vary depending on the patient's condition and the complexity of the procedure.

You may feel some discomfort or pressure during the insertion of the catheter and the injection of the contrast dye, but it is generally not painful. Your doctor may use a local anesthetic to numb the area before the procedure to minimize discomfort.

As with any medical procedure, a RGU does carry some risks, though they are generally rare. These include an allergic reaction to the contrast dye, a urinary tract infection, or injury to the urethra.

After the procedure, you will likely be able to return to your normal activities. You may experience a slight burning sensation during urination for a day or so. If you notice any unusual symptoms such as a fever, prolonged pain, or blood in the urine, contact your doctor immediately.

Doctors usually recommend an RGU for men who have symptoms suggesting a problem with the urethra, such as difficulty or pain during urination, blood in the urine, or recurrent urinary tract infections. It is also used to evaluate injuries to the urethra or penis.

If your RGU shows an abnormality, your doctor will discuss the results with you and plan the next steps. This might include further tests, medication, or possibly surgery, depending on the nature of the problem.

Yes, other imaging tests such as an ultrasound, CT scan, or MRI can provide information about the urinary tract. However, a RGU is often the best method for examining the male urethra specifically.

No, fasting is generally not required for a RGU. However, it is always a good idea to follow any specific instructions given by your healthcare provider.

In case of abnormal findings in the RGU, you should consult a urologist. They specialize in diagnosing and treating conditions related to the urinary system.

An RGU is a valuable tool for diagnosing conditions that affect the male urethra. By providing a detailed image of this part of the urinary system, it enables doctors to identify and treat a range of problems that could otherwise remain undetected. As always, it is important to discuss any concerns you may have with your doctor before undergoing this or any other medical procedure.

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