What Is a DTPA Scan?
A DTPA scan, also called a renal DTPA scan, is a nuclear medicine imaging test used to evaluate kidney function and blood flow. DTPA stands for Diethylene Triamine Pentaacetic Acid, a radioactive tracer injected into the bloodstream during the test. This tracer helps doctors assess how efficiently the kidneys filter blood and remove waste from the body.
Unlike ultrasound or CT scans that mainly show kidney structure, a DTPA scan focuses on kidney performance, making it especially useful in detecting functional problems at an early stage.
Why Is a DTPA Scan Done?
Doctors may recommend a DTPA scan for several medical reasons. It helps evaluate overall kidney function and identify problems that may not be visible through routine imaging tests.
Common reasons for a DTPA scan include:
- Measuring how well each kidney is functioning individually
- Detecting urinary tract obstruction or blockage
- Assessing reduced kidney function
- Monitoring kidney health after surgery or transplantation
- Evaluating high blood pressure caused by kidney-related issues
This test is particularly helpful in managing chronic kidney disease and planning long-term treatment strategies.
How Does a DTPA Scan Work?
The DTPA scan works by tracking the movement of a radioactive tracer through the kidneys. Once injected, the tracer travels through the bloodstream and is filtered by the kidneys. A gamma camera captures images over time, showing how quickly and efficiently the tracer is processed and eliminated.
The scan provides detailed data on:
- Blood flow to each kidney
- Filtration efficiency (glomerular filtration rate or GFR)
- Drainage of urine from the kidneys
This functional insight allows doctors to make accurate diagnoses and informed decisions.
Step-by-Step DTPA Scan Procedure
Understanding the procedure can help reduce anxiety and prepare you better for the test.
Step 1: Preparation
You may be advised to drink water before the scan to ensure proper hydration. In most cases, fasting is not required.
Step 2: Tracer Injection
A small amount of radioactive tracer is injected into a vein, usually in the arm. This injection is safe and causes minimal discomfort.
Step 3: Imaging Process
You will lie on a scanning table while a gamma camera captures images as the tracer passes through your kidneys. The process typically lasts 30–45 minutes.
Step 4: Completion
After the scan, you can usually resume normal activities immediately unless advised otherwise by your doctor.
Preparation Tips Before a DTPA Scan
Proper preparation helps ensure accurate results. Follow these general guidelines unless your doctor provides specific instructions:
- Drink adequate water before the scan
- Inform your doctor about any medications you are taking
- Share details of existing kidney conditions or allergies
- Avoid dehydration on the day of the test
Always follow the instructions given by the diagnostic centre for the best outcomes.
Is a DTPA Scan Safe?
Yes, a DTPA scan is considered safe for most patients. The amount of radiation used is very low and within medically acceptable limits. Side effects are rare, and allergic reactions to the tracer are extremely uncommon. However, pregnant or breastfeeding women should inform their doctor beforehand so appropriate precautions can be taken.
DTPA Scan Price in Delhi
The DTPA scan price in Delhi can vary depending on factors such as location, diagnostic centre, and technology used. On average, the cost ranges between ₹6,000 and ₹18,000.
Factors affecting the DTPA scan price include:
- Type of healthcare facility
- City or region
- Additional consultations or reports
- Use of advanced imaging equipment
Comparing centres and checking inclusions can help you choose a cost-effective option.
How to Find a DTPA Scan Near Me
Searching for a DTPA scan near me is now easier than ever. Many diagnostic centres and nuclear medicine facilities offer online appointment booking and transparent pricing.
When choosing a centre, consider:
- Availability of nuclear medicine specialists
- Modern imaging equipment
- Clear reporting and timely results
- Patient reviews and accessibility
Selecting a reliable centre ensures accurate diagnosis and a smooth experience.
Who Should Get a DTPA Scan?
A DTPA scan may be recommended for:
- Patients with chronic kidney disease
- Individuals with suspected urinary blockage
- Kidney transplant recipients
- People with unexplained high blood pressure
- Patients with declining kidney function in blood tests
Your doctor will determine whether this test is suitable based on your medical condition.
Conclusion
A DTPA scan is a valuable diagnostic tool that provides detailed insight into kidney function and blood flow. It plays a crucial role in early detection, treatment planning, and long-term monitoring of kidney-related conditions. The procedure is safe, minimally invasive, and offers accurate functional information that other imaging tests may not reveal. Understanding the procedure, preparation, and cost helps patients make informed decisions about their health. Whether you are comparing the DTPA scan price or searching for a trusted DTPA scan near me, timely testing can significantly improve kidney care and overall health outcomes.