Why is the Renal Doppler test done?
The following conditions may be met by medical professionals ordering this test:
- To check for renal hypertension, particularly when an angiography test yields unclear results. An x-ray examination called angiography is used to identify blood artery blockages. Renal hypertension is high blood pressure that develops as a result of renal artery stenosis (narrowing).
- As a follow-up to the blood vessel-opening treatment angioplasty.
- For determining whether a newborn has renal vein thrombosis, which is the creation of a clot in a blood artery that transports blood away from the kidney. The newborn may exhibit signs including reduced urine frequency and cool/discolored hands and feet as a result of this potentially developing as a dehydration problem.
- To determine whether someone has renal vein thrombosis if they have any of the following conditions:
- Kidney tumor: A blood clot may form as a result of a kidney tumor. Patients with tumors exhibit signs like appetite loss and blood in the urine. Anemia and a loss of weight.
- Hypovolemia: Low blood volume is a symptom of this illness. General weakness, pale skin, sweating, and unconsciousness are all signs of hypovolemia.
- If a person is thought to have had renal trauma, determine whether the blood flow in the kidneys is healthy.
- To detect kidney obstruction in individuals who, for whatever reason, cannot take a contrast dye, as an alternative to an x-ray with contrast dye. Itchy eyes and hives are symptoms that people who are allergic to contrast agents would experience.
Renal Doppler test procedure:
- You will lie face-up on a table for the renal ultrasonography test. To maximize the image quality, you might need to turn to either side.
- You will be positioned on the diagnostic table by the radiologist (a medical professional qualified to oversee and interpret radiological scans) or the sonographer (a technician specially trained to do ultrasounds). To the area being examined, a water-based gel will be applied. The gel will aid in the transducer making clear and strong contact with the body. Additionally, it eliminates air pockets that can prevent sound waves from entering your body from contacting the transducer and the skin. The transducer is placed on the abdomen and moved back and forth over various areas by the individual performing your ultrasound until the desired images are captured.
- As they press the transducer against the area being inspected, there is typically no discomfort. However, if the area is sensitive, the transducer may cause you to feel pressure or a little discomfort.
- The technologist will remove the transparent ultrasonic gel from your skin after the imaging is finished. Any leftovers will rapidly dry out. Typically, the ultrasonic gel leaves no stains or fading on garments.
- The technologist may ask you to get dressed and wait while they review the ultrasound photos when the examination is over.
Renal Doppler test results:
Any one of the following circumstances can be investigated using the test:
- Identify the conditions listed below:
- Kidney obstruction
- Renal artery stenosis
- Renal hypertension
- Renal vein thrombosis
- Arteriovenous malformation/fistula: a disorder that could cause the kidney’s main blood arteries to grow
- Tear in the main blood channel (aorta) that drains blood from the heart, known as an aortic dissection
- Aortic aneurysm: a bulge in the aorta; kidney trauma; the ability to distinguish between a kidney tumor and a pseudotumor (false tumor).
