You have no items in your shopping cart.
Show Location
×

THE TEST JUST ADDED TO YOUR BASKET


CONTINUE ADD MORE GO TO CART

Blog

How Does Contrast Affect The Kidney?

In current medicine, the use of imaging tests has been widely extended as a fundamental support for both the diagnosis and therapeutics of different pathologies. DTPA renal scan provide a great deal of information; they are mostly non-invasive or minimally invasive and have good cost-effectiveness.

The technology used for such tests varies from radiation to ultrasound and electromagnetic fields, as well as combinations or modifications of these, and depending on the body structure that you want to study some techniques will be more suitable than others. There are also ways to increase the sensitivity and/or specificity of the test and provide more information to the healthcare professional who has requested them, such as the use of contrasts.

These are substances that can be ingested, administered through enemas, probes, or intravenous, and that enhances structures or organs in the images. However, contrasts cannot be used in all cases, and particularly in patients with impaired renal function, there are some peculiarities that must be considered. Two situations are the most relevant.

When a CT scan with iodinated contrast is performed, this is a product that is discarded through the urine, but when the patient's renal function is impaired below a certain limit (Glomerular filtration <60 ml/min) it can worsen the renal functions even more. To reduce the risk, it is important to maintain adequate hydration before and after the test and avoid the consumption of some medications such as diuretics, antihypertensive, and analgesics (NSAIDs) 24 hours prior to the DTPA renal scan.

Contrast urography

The most informative, simple, and inexpensive research method. It can be performed on an outpatient basis - immediately after the procedure, the patient goes home. The main advantage is the introduction of an iodine-based contrast agent, which, as it is filtered by the glomerular system and excreted through the urinary tract, highlights various areas in the picture.

Possible side effects of kidney x-ray with contrast

The most common are allergic reactions; therefore, X-ray rooms are equipped with a first-aid kit to provide emergency assistance with the development of a hypersensitivity reaction. Also, during the introduction of contrast, you may experience a short-term feeling of heat, nausea, and an unusual smack in the mouth.

In the case of a Magnetic Resonance with gadolinium contrast, there is a less frequent but more serious adverse reaction, Nephrogenic Systemic Fibrosis; It has been seen that it occurs mainly in patients with major impairment of renal function (Filtration <30 ml/min) and there is currently no completely satisfactory treatment for it. To reduce their risk, the least possible amount of gadolinium is used, and in some patients, hemodialysis sessions are indicated to help remove this substance from the blood.

Therefore, if you are a patient with renal insufficiency, do not be surprised if some special provisions are made when you indicate any of these tests.

Kidney Diseases And Their Tests

Kidney diseases evolve silently. Hence the importance of regularly performing blood and urine tests to check that his kidneys are working well. What are the different renal function parameters that appear on the test results? And what is the use of over-the-counter urinary strips in pharmacies?

The man being endowed with two kidneys, one can fall sick without being aware of it. This poorly known organ has the main function of eliminating the waste present in our blood. How to know if it works well? How to spot the first signs of kidney failure?

Although we rarely worry about it, our kidneys are just as important as our heart or our lungs. They are, in a way, the "treatment plant" but also the regulation of the human body: their main function is to eliminate waste in our blood. Every minute, about a litre of blood reaches the kidneys to be purified, before coming out and going back into the general circulation.

How can I know if I have kidney disease?

In general, kidney disease in its initial stage has no symptoms. The only way to know how well your kidneys are working is to be tested. Have a kidney function test if you suffer from:

  • Diabetes
  • High blood pressure
  • Heart disease
  • Family history of kidney failure

If you have diabetes, get checked every year. If you suffer from high blood pressure, heart disease, or have a family history of kidney failure, talk with your doctor about how often you should be evaluated. The sooner you know that you have kidney disease, the sooner you can get treatment to help protect your kidneys.

Doctors assess renal functionality by analyzing blood and urine samples.

When the rate of renal filtration decreases markedly, the concentration of creatinine (a waste product) in the blood increases. The clearance or clearance of creatinine (a more accurate test) is established from a blood sample using a formula that relates the value of blood creatinine to the person's age, weight, and sex. In order to determine creatinine clearance more accurately, it is necessary to plan in detail the timing of urine collection with respect to blood creatinine determination.

The cystatin C, a protein of the blood, is also sometimes measured as an indicator of renal function. The concentration of urea nitrogen in blood (BUN, BUN for short) can also indicate the efficiency of kidney function, but many other factors can alter the concentration.

EVALUATION OF RENAL FUNCTION EVEN AFTER DIAGNOSIS

DTPA renal scan should be performed periodically even after diagnosis, for disease control. Those most in use are urinary creatinine, to estimate any worsening of renal disease, urinary nitrogen and sodium, the Emogas Analysis, and the so-called BNP examination (Type B Natriuretic Peptide).

The latter serves to assess the person's state of hydration and its variations over time. It is very useful for monitoring the health of the nephropathy. By periodically checking the progress of kidney failure and following the advice of one's doctors with rationality, it is possible to slow down the course of the disease, maintaining a satisfying lifestyle.

What is a DTPA Renal Scan? It's Cost, Results And Side Effects

DTPA Scan Cost 

Cost differs from one centre to other based on various reasons. 3Hcare assures you of providing best price for your DTPA renal scan. Search for the test on our portal, compare price and book test in lab of your choice. 

DTPA Scan Full Form 

DTPA scan full form is Diethylenetriamine Pentaacetic Acid.

What is DTPA Renogram Scan?

DTPA is a radiopharmaceutical used in a DTPA renal scan. It is basically a medicine.

A DTPA renal scan is done to check the supply of the blood, the excretion and the function of the urine from the kidneys. This test finds out the contribution of each kidney towards the functioning of the kidneys in totality. This DTPA scan results help in the evaluation of-

DTPA Renal Scan

  • The functioning of the renal tubular and perfusion (the methodology using which the circulation of the body fluids take place in            the kidneys)
  • Reno vascular hypertension(arteries of the kidneys having high blood pressure)
  • Renal Artery Stenosis (the arteries taking blood to the kidneys become narrow)
  • Renal tubular damage or obstruction and trauma(ureters become blocked or interrupted)
  • Renal transplant function and perfusion

DTPA Renal Scan Test Costs

How should you prepare for the test?

Prior to getting the scanning done you should have a lot of fluid to drink and should be well hydrated. You need to stop the medications of your blood pressure 4 to 7 days prior to getting your test done.

For acquiring more information about the test, you need to either consult the department of the nuclear medicine or the doctor where your scan is planned. They would give you the instructions required for the test.

What happens during a DTPA Renal Scan?

For ensuring that you are well hydrated, you’ll be given some water to drink prior to the scan. Your height and weight will also be measured.

You will be made to lie on a scanning bed. A gamma camera would be placed under your bed. It’ll be important for you to remain still as any kind of a movement would make the images blur. This would also make the scan results poor. This imaging will in no way hurt you.

An injection will be given into your vein through the cannula inserted into your vein. The radiopharmaceutical is injected through this cannula. This gets detected by the gamma camera providing a clear image of the Kidneys. Through the same cannula another injection would be given. This would be given after the scanning of 15 minutes. This injection reduces the reabsorption of the water by the kidneys and helps the kidneys to form more urine. Also the flow of urine increases through the ureters. This helps in seeing the obstruction that arises in the ureters.

How should you prepare for the test?

After effects of the Renal Scan

There aren’t any after effects but if the dosage of Diuretic (Furosemide) is given to you for increasing the flow of your Urine, you will often feel thirsty and would have the craving of drinking water often so that you don’t become dehydrated. For emptying your bladder often you’ll have to frequently go to the toilet.

How much time does the Renal Scan Last?

Since the rate of the functioning of the kidney varies from individual to individual therefore the time also varies from individual to individual though normally it takes about 30 to 60 minutes.

Side Effects of DTPA Scan

Small dosage of the ionising radiation is given very similar to the imaging tests. This small dosage being very similar to the other types of imaging tests does not have risks.

Show Footer