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Retrograde urethrogram (RGU)

A Retrograde urethrogram (RGU) is a fluoroscopy test of the urethra. It shows urethral narrowing or injury. Typical effective dose 0.5 to 1 mSv, similar to about 2 to 4 months of natural background radiation (about 3 mSv a year).

सामान्य स्वास्थ्य जानकारी — यो निदान होइन। आपत्कालमा १०२ मा फोन गर्नुहोस्। सधैं योग्य स्वास्थ्यकर्मीसँग सल्लाह लिनुहोस्।

What it shows

Urethral narrowing or injury.

Why it is done

Poor urine stream, pelvic injury.

Preparation

Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.

Radiation & safety

Typical effective dose 0.5 to 1 mSv, similar to about 2 to 4 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

How long it takes

30 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Sample type

Fluoroscopy

नतिजा व्याख्या गर्न डाक्टरलाई देखाउनुहोस् — एउटै परीक्षणले निदान गर्दैन।

यो कहाँ गर्न सकिन्छ

तपाईंनजिकको हेरचाह

नजिकका सुविधा देखाउन तपाईंको स्थान एक पटक प्रयोग गर्छ। केही सुरक्षित गरिँदैन।

सामान्य प्रश्न

What does a rgu show?
Urethral narrowing or injury.

Why is a rgu done?
Poor urine stream, pelvic injury.

How do I prepare for a rgu?
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.

Does a rgu use radiation?
Typical effective dose 0.5 to 1 mSv, similar to about 2 to 4 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

How long does a rgu take?
30 minutes

Retrograde urethrogram (RGU) किन गरिन्छ?
Poor urine stream, pelvic injury.

Retrograde urethrogram (RGU) का लागि कसरी तयारी गर्ने?
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.

Retrograde urethrogram (RGU) गर्भावस्थामा सुरक्षित छ?
Typical effective dose 0.5 to 1 mSv, similar to about 2 to 4 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

SI text CC BY 4.0; RadiologyInfo.org (ACR/RSNA) and MedlinePlus linked as references only, no text copied.

स्रोत: SI health summary (own words); decoder imaging pack; RadiologyInfo.org and MedlinePlus as references only

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