Renal perfusion is a term used to describe blood flow to the kidneys and is commonly assessed with a test called renal scintigraphy. This test helps determine how well blood is delivered to the kidneys and how well the kidneys function, according to Johns Hopkins University.Know More
In the case of renal perfusion assessment, a renal blood flow scan can help find blockages or narrowing of blood flow to the kidneys. This is an important test in cases where a physician wants to rule out renovascular hypertension as a source of disease or if renal transplant rejection is suspected, explains Johns Hopkins University.
The procedure begins by injecting a small amount of radioactive dye into the blood stream. The dye usually consists of iodine or technetium and is processed by the kidneys. Once there, the dye emits radiation, which is picked up by a scanner. The scanner then translates the information into an image, which a physician interprets, according to Johns Hopkins University.
The risks from the procedure are low because of the small amount of dye injected into the patient. Patients who are allergic to the dye or any of its components need to tell their physicians. Women who are pregnant should avoid being exposed to the dye because it can cause harm to the fetus, explains Johns Hopkins University.Learn more about Diagnostics & Imaging
Renal failure, also known as kidney failure, is when the kidneys shut down and require invasive treatment in order to function, reports the American Kidney Fund. Kidney failure can occur slowly over time, or it can occur almost instantly.Full Answer >
Renal failure or dysfunction, also referred to as renal insufficiency or kidney failure, is a condition whereby the kidneys fail to filter toxic and waste materials from the body, according to WebMD. The two forms of renal failure are acute kidney failure and chronic kidney disease.Full Answer >
Alanine aminotransferase, or ALT, is an enzyme found concentrated in the liver and in small amounts in the kidneys and the heart, states WebMD. An ALT test checks the blood for this enzyme, as its presence indicates potential liver damage. The enzyme's former name was serum glutamic pyruvic transaminase, or SGPT.Full Answer >
A kidney ultrasound may be done for many reasons, including assessing the kidneys for basic features, detecting abnormalities, assisting in the performance of procedures and evaluating a transplanted kidney, according to Johns Hopkins Medicine. Kidney-associated structures, such as the bladder and ureters, are also studied using this ultrasound.Full Answer >