Radiation Exposure

Radiation is an energy that is produced in the form of particles or waves. It is produced naturally by sunlight, and it is also produced by humans during X-rays, cancer treatments, and in nuclear facilities. Long-term exposure to a small amount of radiation causes gene mutations and increases the risk of developing cancer. Brief exposure for a longer period causes radiation sickness. The symptoms are nausea, skin burns, and reduced organ function. In severe cases, it leads to death.

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My wife did a mammogram without knowing that she is pregnant. Kindly suggest.

Query: Hi doctor, My wife had a mammography test last month. It was around 26 days after LMP. She did not get her periods then. Now, after a month of mammography, her doctor has confirmed that she is pregnant.¬†Please suggest.  Read Full »


Dr. Shravana Kumar Chinnikatti

Answer: Hi, Welcome to icliniq.com. Mammogram delivers less dose and fetus will be far away from the radiation field. However, a close follow-up with ultrasound of the fetus and obstetrician is necessary. For further information consult a radiation oncologist online --> https://www.icliniq.com/...  Read Full »

I have had many CT scans of the temporal bone in the past three years. Is it a lot of radiation exposure?

Query: Hello doctor, Could you tell me how much radiation is there in a CT for temporal bone without contrast? Is it a lot of radiation? I have had many CT scans in the past three years for an autoimmune disease I have. Recently, I have been having issues with my ears. Is there a lot of radiation in CT of ...  Read Full »


Dr. Vivek Chail

Answer: Hello, Welcome to icliniq.com. Thanks for writing in, and I understand your concern. A Computed tomography (CT) scan of the temporal bone without contrast involves approximately 0.8 mSv radiation dose in helical scanning and 1.21 mSv for sequential scanning. This is a small amount of radiation and...  Read Full »

Can exposure to radiation cause cancer?

Query: Hello doctor,I am 29 years old, and I am worried about bone cancer. I have had two CT scans for kidney stones around my abdomen area for a total of 7 mSv. I also had a CT scan of my head. I read that radiation can cause bone cancer. Should I be worried? Is it a low dose and not to worry? There is no...  Read Full »


Dr. Chandra Shekhar

Answer: Hello,Welcome to icliniq.com.It is true that radiation may cause cancer, but that is one person among one million people.Also, there is no family history of cancer, so not to worry.Eat antioxidants and fruits, exercise daily, and make your mind positive.  Read Full »

I am a 23-year-old female who underwent a pulmonary angiogram computed tomography scan. Should I be concerned about the radiation exposure?

Query: Hi doctor, I am a 23-year-old female with a BMI of 19 (52 kg and 165 cm height). I am concerned about the amount of mSv I received during my scan of a pulmonary angiogram CT with contrast iodine. I wondered about the total mSv that my body received and the amount that my breast and lungs absorbed. A...  Read Full »


Dr. Kaushal Bhavsar

Answer: Hello, Welcome to icliniq.com. I understand your concern. I have gone through the image you have attached (attachments removed to protect the patient's identity). If the exposure is above 10 mSv, then only it is harmful. In your case, the value is 8.72 mGy*cm. So I suggest you not worry about any ...  Read Full »

What could be the reason for pulmonary fibrosis in an elderly?

Query: Hello doctor, I am a 74-year-old male with a weight of 142 pounds and a height of 5 feet 10 inches. I take no medications except Ativan. I take vitamins. I am a non-smoker, worked in the auto body shop for two years painting cars, quit grain farming at the age of 44, minimal exposure to asbestos. I...  Read Full »


Dr. Amolkumar W. Diwan

Answer: Hello, Welcome to icliniq.com. Single chest X-ray cannot diagnose lung fibrosis and further tests are required to rule out other causes. As you said, the chest X-ray was normal before a few months and now shows scattered fibrosis. It is advised to repeat the X-ray after a few days. Once the X-ray ...  Read Full »

Is fluoroscopy for back pain advisable at 22 weeks of pregnancy?

Query: Hi doctor, I am 22 weeks pregnant. For my severe lumbar injury, shall I get a procedure done under fluoroscopy? Would I be able to see the baby in the fluoroscopy? Please help.  Read Full »


Dr. Jimesh H. Mavani

Answer: Hi, Welcome to icliniq.com. Fluoroscopy is not advisable while you are pregnant and it is not recommended at all. Do take local treatment for a backache and take more rest. If constipation is there, then take proper treatment for it. This will all help in decreasing pain. If it is not avoidable, t...  Read Full »

Are there any food that prevents DNA damage caused by CT radiation?

Query: Hello doctor,I am 29-years-old and in good health. My height is 6 feet and 1 inch, and I weigh 165 lbs. I just had a CT scan around my stomach for kidney stones. This is the second scan in the same area. The first was a 3.86 mSv dosage, and the second was a 3.26 mSv dosage. Should I be worried about...  Read Full »


Dr. Andrew Chellakumar Fenn

Answer: Hi, Welcome to icliniq.com. You do not worry about the radiation dose from regular computed tomography (CT) scans done to diagnose disease. You do not need to worry about CT scans done for diagnosis as these have benefits beyond any potential or perceived detrimental effects of radiation. The gene...  Read Full »

Should I be concerned about being exposed to a lot of radiation at the age of 65?

Query: Hi doctor, I have been experiencing pulsatile tinnitus for a year. I had a CTA of the brain with and without contrast, CT of the temporal bone, and an angiogram of the brain and neck. I went for another opinion, and my doctor suggested doing a CTV of the brain and redo temporal bone CT both with and...  Read Full »


Dr. Muhammad Shoyab

Answer: Hello, Welcome to icliniq.com. I understand your concern. It is quite natural to be concerned about radiation hazards, particularly when doing several scans consecutively. However, please be assured that the radiation of each scan is kept "as low as reasonably achievable" (ALARA) so that it does not...  Read Full »

I was indirectly exposed to radiation four times during a CT scan. Should I be worried?

Query: Hello doctor, A couple of days back, I had to take my aunt for a brain CT scan. The CT scan operator asked me to be in the room. They gave me an apron, but my arm and head got exposed. They asked me to hold her head steady, so I held her chin while she slid into the CT scanner. During this, my han...  Read Full »


Dr. Varun Chaudhry

Answer: Hello, Welcome to icliniq.com. CT (computed tomography) scan of the head has low radiation exposure. Although your head and hands were exposed, the lead apron would have reduced the total body dose. You said it was done four times, but I am unsure if the whole scan was done four times or just ...  Read Full »

What are the chances of getting cancer from having two CT scans in a month?

Query: Hello doctor, I am a 26 year old female. I am worried after reading about the effects of radiation from a CT scan. I had two separate scans within a month. Both the scans were for the chest, abdomen, and pelvis. The doctors were looking for a potential lymphoma, but nothing conclusive was found. I ...  Read Full »


Dr. Sugandh Garg

Answer: Hi, Welcome to icliniq.com. This kind of exposure to CT scan is not harmful, though you must avoid as much as possible. A continuous, long-term exposure daily may cause harmful radiation hazards and ill health. So, do not worry about the exposure. This very minimal exposure does not pose any fu...  Read Full »

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