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Pig kidney dissection for lab 11.
- 12 min
- 5K
- Human Phys
- What is a renal scan?
- Why do I need a renal scan?
- How do I prepare for a renal scan?
- What happens during a renal scan?
- What are the complications associated with a renal scan?
- What do the results mean?
A renal scan involves the use of nuclear radioactive material to examine your kidneys and assess their function. A renal scan is also known as a renal scintigraphy, nuclear renal imaging, or a renogram.
Other forms of renal imaging include CT scans, X-rays, ultrasounds, and MRIs. Read on to learn how and why nuclear renal scans are performed and what they can reveal.
During this procedure, a technician injects a radioactive material called a radioisotope into your vein. The radioisotope releases gamma rays. A gamma camera or scanner can detect gamma rays from outside your body.
The gamma camera scans the kidney area. It tracks the radioisotope and measures how the kidneys process it. The camera also works with a computer to create images.
These images detail the structure and functioning of the kidneys based on how they interact with the radioisotope.
Images from a renal scan can show both structural and functional abnormalities. This helps doctors diagnose a kidney problem in its earlier stages without invasive techniques or surgery.
A renal scan identifies problems with kidney function. Normally, the two kidneys:
•remove urea, or liquid waste, from the blood by producing urine
•maintain a balance of chemicals, such as sodium and potassium, in the blood
•supply the hormone erythropoietin, which supports red blood cell growth
•control blood pressure by producing the hormone renin
•provide the hormone calcitriol, which supplies calcium to bones
Typically, you don’t need to make any special preparations before a renal scan. You can usually eat your normal diet. Sedation isn’t usually necessary.
You should tell your doctor about any prescription or over-the-counter medications you’re taking. Discuss how to use them before and during the test.
Your doctor may provide special instructions if you’re taking medications that could affect the results of the renal scan. These medications include:
•diuretics, or water pills
•ACE inhibitors for heart conditions or high blood pressure
•beta-blockers for heart conditions or high blood pressure
A renal scan is an outpatient, or same-day, procedure. You won’t have to stay at the hospital overnight. A nuclear medicine technician performs the scan. This is usually done in either in a hospital radiology department or a medical office with special equipment.
Depending on the reasons for your scan, testing may take between 45 minutes and 3 hours. Talk to the technician beforehand if you’re claustrophobic because the camera may pass close to your body.
Before your procedure, you’ll remove any of the following that could interfere with your scan:
•clothing
•jewelry
•dentures
Nuclear medicine imaging is considered safe. The radioisotope exposes you to less radiation than an X-ray. The small amount of radiation exposure is primarily in the kidney area. It passes from your body naturally within 24 hours.
The low doses of radiation used in nuclear medicine procedures don’t have a connection to any long-term negative effects.
Even though the radiation exposure is minimal and short-term, tell your doctor if you’re pregnant or think you might be pregnant. Also, tell your doctor if you’re breastfeeding to ensure that there’s no contamination of your breast milk.
Unlike intravenous dyes, radioisotopes carry few risks of allergic reactions. Allergic reactions to radioisotopes are possible but rare. A renal scan is a good option if you’ve had a reaction to the contrast dye used in X-rays of the urinary system.
The needle stick for the IV may cause:
•discomfort
After the technician completes your renal scan, a nuclear medicine radiologist will interpret the image findings. They’ll send a comprehensive report to your doctor. Your doctor will discuss the results with you.
Abnormal results of a renal scan can indicate:
•kidney disease
•the presence of cysts or tumors
•a blockage of the renal arteries due to injury or trauma
•a blockage that restricts the flow of urine from the kidneys to the bladder
Aug 28, 2023 · Nuclear Renal Scan. Hiral Banker; Eugene G. Sheffield; Harris L. Cohen. Author Information and Affiliations. Last Update: August 28, 2023. Go to: Improvement in ultrasound, computed tomography (CT), and magnetic resonance (MR) imaging. Development and availability of various radionuclides.
- Hiral Banker, Eugene G. Sheffield, Harris L. Cohen
- 2023/08/28
- 2021
Feb 15, 2019 · Introduction. Evaluation of the urinary tract was one of the first experimental applications of radiology and contrast administration. More than 100 years later, imaging has developed into a fundamental part of the evaluation of nephrology and urology patients.
- Jessica G. Fried, Matthew A. Morgan
- 2019
1954. Photo: The identical Herrick twins were the first participants in a successful kidney transplant. The idea of transplanting organs is not new. It can be found in myths of the ancient Greeks...
The Carolina Mammal Kidney Dissection Guide is a general set of instructions for dissecting mammal kidneys. With each type of kidney, there will be differences in the size of the structures and kidney regions, but the general structures and their relative location will be the same or very similar.
People also ask
How have imaging strategies for the kidney changed over the past 100 years?
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Nov 13, 2022 · An additional reniform kidney with its specific diverse vasculature, collection system, and encapsulated parenchyma is known as a supernumerary kidney (SK). The presence of an extra (third) kidney is an unusual congenital condition of the urinary system (US), having less than a hundred cases reported globally [ 1 - 3 ].
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