Radiation Exposure and Its Impact on Blood Health

After undergoing a CT scan and X-ray, a blood test revealed abnormalities in the blood cells?

Hello Doctor: Due to hematuria, a urologist performed several X-rays and one abdominal CT scan with contrast from March to December 2022.
I noticed that the radiation dose recorded in the National Health Insurance app was 25 millisieverts.
In October of this year, during a health check, my white blood cell count dropped to 2600 and my platelet count was only 126,000.
The hematologist mentioned that it could be myelofibrosis.
I researched this condition online and found that it is difficult to treat.
Prior to this, my blood cell counts were all normal.
I now regret not being able to eat or sleep, living in fear.
I read online that this condition is related to prolonged exposure to radiation; is this true? Thank you for your response.

Ms. Li, 50~59 year old female. Ask Date: 2023/12/10

Dr. Wang Yifen reply Radiology

Hello, the American Association of Physicists in Medicine issued a public statement in 2011 stating that if a single "radiological examination" has a radiation dose of less than 50 millisieverts, and multiple "radiological examinations" are performed within a short period (such as one year) with a total dose of less than 100 millisieverts, the potential risks associated with the "radiation dose" can be considered negligible, or even non-existent.
Following a physician's recommendations for radiation-related examinations is important, as the health benefits outweigh the effects of radiation.
If there are any concerns, it is advisable to communicate with your physician before undergoing the examination.
Do not avoid examinations out of fear of radiation, as this could result in missed opportunities for disease treatment.
Please refer to the above information, and wish you peace and health.
Ministry of Health and Welfare radiation examination radiation dose press release.

Reply Date: 2023/12/10

More Info

Radiation exposure and its potential effects on blood health is a topic of significant concern, especially for individuals who have undergone multiple imaging procedures. In your case, you mentioned having several X-rays and a CT scan, which resulted in a cumulative radiation dose of approximately 25 millisieverts (mSv). This level of exposure is generally considered low in the context of medical imaging.

To address your concerns, it's essential to understand the relationship between radiation exposure and blood health, particularly regarding white blood cells and platelets. The American Medical Physics Association has stated that single radiation doses below 50 mSv and cumulative doses under 100 mSv over a short period (like a year) are unlikely to pose significant health risks. The potential for radiation to cause blood disorders, including leukemia or other hematological conditions, is generally associated with much higher doses, often in the range of hundreds to thousands of millisieverts, typically seen in occupational exposure or catastrophic events.

Your recent blood test results showing a drop in white blood cells (to 2600) and platelets (to 126,000) are concerning, but attributing these changes directly to radiation exposure from medical imaging is not straightforward. Bone marrow fibrosis, which your hematologist mentioned, can have various causes, including genetic factors, autoimmune diseases, infections, and exposure to certain chemicals or radiation. However, the radiation doses from your imaging studies are unlikely to be a direct cause of such a condition.

It's understandable to feel anxious about your health, especially when faced with a potential diagnosis like bone marrow fibrosis. The internet can often amplify fears, as it tends to highlight worst-case scenarios. It's crucial to maintain open communication with your healthcare providers. They can provide clarity on your condition, the implications of your blood test results, and the most appropriate next steps for diagnosis and treatment.

In terms of lifestyle changes, while there is no specific diet that can "detoxify" radiation exposure, maintaining a balanced diet rich in antioxidants may support overall health. Foods high in vitamins C and E, as well as those containing zinc and selenium, can help bolster your immune system. However, these dietary choices should not be seen as a cure or a way to reverse any potential damage from radiation.

If you are experiencing significant anxiety or distress about your health, consider discussing this with a mental health professional. They can provide strategies to help manage your fears and improve your overall well-being.

In summary, while radiation exposure from medical imaging is a valid concern, the levels you experienced are generally considered safe and unlikely to cause the blood abnormalities you are facing. It's essential to work closely with your healthcare team to explore all potential causes of your symptoms and to develop a comprehensive plan for your health moving forward.

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