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Doctor insights on: Will A Hida Nuclear Scan Expose Me To Dangerous Radiation

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Will a hida nuclear scan expose me to dangerous radiation?

Will a hida nuclear scan expose me to dangerous radiation?

No: All imaging tests that expose a patient to radiation should only be performed for certain conditions/symptoms. That is called appropriate use. Medical radiation is a useful tool, but it should not be used unless necessary to help make a diagnosis. Radiology is always trying to balance radiation dose with image quality. This is called alara - as low as reasonably achievable. ...Read more

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Dr. Joseph Accurso
296 doctors shared insights

Hida Scan (Definition)

Patient is injected intravenously with isotope tagged to chemical hida that is extracted preferentially by liver cells mimicking bile. Some of this is stored in gall bladder and some enters small bowel from common bile duct. Cholecystokinin is a natural hormone slowly injected intravenously to stimulate gall bladder contraction. Normal function has at least 50% ...Read more


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Do hida scans expose patients to dangerous levels of radiation?

Small dose: If i recall correctly, the total dose of radiation from a hida scan is equivalent to about a year of exposure to the low-level radiation from the environment, so quite low. ...Read more

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Are the concerns about radiation from imaging overhyped?Just read numerous articles stating you need way more msv than a nuclear scan to be concerned?

Yes and No: For the most part, the concerns about radiation from imaging are overhyped. It is true that a patient receives a dose of radiation for every x-ray, CT and Nuclear study. But the amount is small. A patient can also receive a dose of radiation from riding an airplane, living in a house made from bricks or concrete, and dozens of other every day exposures. Doctors try to minimize medical exposures. ...Read more

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Had nuclear stress about 13 years ago don't remember meds used! Had HIDA 2 yrs ago plus annual mammos. Too much radiation? Nuclear dangerous?

Nuclear stress test: It would be unusual for a 33 year old woman to have a condition where a nuclear stress test was helpful. The effects of radiation exposure are measured in very small numbers -- while not zero, the risk of a radiation side effect is quite low from the kinds of diagnostic tests you've had. The goal is to keep radiation exposure as low as reasonably possible, while using tests when needed. ...Read more

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Do nuclear scans expose a patient to more radiation than an X-ray or CT scan?

Do nuclear scans expose a patient to more radiation than an X-ray or CT scan?

Not usually: Depends on nuclear study. A lot of CT exams such as chest and abdomen have more radiation dose than most nuclear medicine studies. A bone scan is more dose than the CT of brain. In any event if study is necessary for diagnosis to help patient the dose becomes insignificant. ...Read more

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Had Hida scan for gallstones & months later multiple mammos for stereotactic biopsy (calcification-benign)-dangers to all this radiation?

Had Hida scan for gallstones & months  later multiple mammos for stereotactic biopsy (calcification-benign)-dangers to all this radiation?

The danger is tiny: The risk of induced cancer from a HIDA scan and dozens of mammogram images is incredibly small. In fact, some would claim the risk could barely be calculated reliably. See: http://www.riainvision.com/exams/hida_scan.aspx Note, we all get x ray radiation naturally every day. There is real risk with repeated studies such as CT scans. For instance, one CT study of the chest equals 100 chest x rays. ...Read more

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I've had a neck ct scan and four x-rays and a hida scan? I'm worried about the radiation exposure... Should I? All in the past year, I'm a 34yr F.

CT scan; not the Xra: CT scans involve ~400 times more radiation exposure as Xrays, & so if u worry abt unnecessary radiation risk, limit CT scans. HIDA & Xrays involve so little radiation that u prob got as much from walking outside in 1 yr as u got from those tests. At 34, most of ur organs have developed, so there's no immediate threat; however, there's a lifetime radiation limit. Too much testng will catch up 2u@80 ...Read more

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What is the definition or description of: thyroid nuclear scan?

What is the definition or description of: thyroid nuclear scan?

Thyroid scan: This scan involves taking orally a small dose of radioactive iodine. The iodine is taken up by the thyroid and produces an image. "cold" areas are places with no iodine uptake. "hot" areas have a lot of uptake. The radiologist also calculates the percent uptake of the iodine. This test is important in the diagnosis of hyperthyoidism, thyroid cancer, and follow up of thyroid cancer. ...Read more

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Dr. Guido Davidzon
111 doctors shared insights

Nuclear Scans (Definition)

From a cardiac perspective nuclear scans are performed with either exercise or medications to examine the blood flow in the heart. Before and at peak exercise the patient is given a radio tracer which travels in the blood to the heart. Pictures are take before and after exercise and compared to evaluate for any blockages in the ...Read more


Gamma Rays (Definition)

This is light of extremely short wavelengths typically produced either among the stars / in cosmic rays or by radioactive element decay. Gamma rays form the background of normal radiation in which we all live; it is substantially greater than the exposure we get from imaging scans or should get from ...Read more