Fluoroscopic visualization of the urinary tract after injection with a radio opaque dye is called?

VSSC Nursing Officer - 2021

Medical & Surgical Nursing

Easy

Appeared in: VSSC Nursing Officer - 2021

Explanation

IVP (Intravenous Pyelogram) is a procedure where a radio-opaque contrast agent is injected intravenously.
The dye concentrates in the kidneys and is excreted through the urinary tract.
Fluoroscopy or a series of X-ray images are taken to visualize the kidneys, ureters, and bladder as the dye passes through them.
This method specifically matches the question's description of using fluoroscopy and an injected dye to view the urinary tract.

Option A: KUB (Kidneys, Ureters, Bladder) is a plain abdominal X-ray that does not use any contrast dye. It provides a basic image of the size and shape of the organs but does not show their function or the flow of urine.
Option C: Cystoscopy is an endoscopic procedure. It uses a thin, flexible tube with a camera (cystoscope) inserted through the urethra to directly visualize the inside of the bladder. It does not involve IV dye or fluoroscopy.
Option D: Urethroscopy is similar to cystoscopy but is limited to the direct visualization of the urethra's interior using an endoscope. It does not use IV dye or visualize the kidneys or ureters.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Diagnostic imaging of the urinary system as background academic context rather than a clinical decision trigger.
A nurse's primary role in procedures involving contrast dye is patient safety. This includes thorough pre-procedure screening for allergies and renal impairment, patient education, and post-procedure monitoring for adverse reactions and ensuring adequate hydration.
Understanding the difference between these tests is vital for patient education. A nurse must be able to explain the purpose of the test, what the patient will experience, and the necessary preparations.
What if? If a patient with a history of renal failure needs their urinary tract visualized, an IVP would likely be contraindicated due to the nephrotoxic dye. The healthcare team might consider alternative imaging like a retrograde pyelogram (where dye is injected directly into the ureters via a cystoscope) or an MRI/ultrasound, which do not use iodinated contrast.

How to Approach the Question

First, break down the question stem into key components: 1) 'Fluoroscopic visualization', 2) 'urinary tract', and 3) 'injection with a radio opaque dye'.
Evaluate each option against these three components.
Option A (KUB): This is a plain X-ray, so it doesn't use dye. Eliminate.
Option B (IVP): This involves an intravenous (injection) of dye and uses X-ray/fluoroscopy to see the urinary tract. This matches all key components.
Option C (Cystoscopy): This is an endoscopic procedure (using a scope), not fluoroscopic imaging with injected dye. Eliminate.
Option D (Urethroscopy): This is also an endoscopic procedure limited to the urethra. Eliminate.

Concept Tested & Keywords

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