Common "Radiation Hazards" queries answered by top doctors | iCliniq

Radiation Hazards

Radiation hazard occurs when the body is exposed to high levels of radiation during work or due to other reasons. They result in causing skin burns and acute radiation syndrome. In the long term, they cause cancer and cardiovascular disease. Skin cancers occur due to exposure of the body to increased levels of ultraviolet radiation (UV). Radioactive chemicals such as radioactive cesium, uranium, and strontium can get settled in food, water, and soil, causing health hazards in humans.

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All the answers published in this website are written by verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.

Does the natural radiation level add to cancer risk?

Query: Hello doctor, Does the natural background radiation level (3 mS v per year) add to cancer risk on top of a dose from medical imaging, or is natural radiation separate or safe since we all receive it?  Read Full »

Dr. Andrew Chellakumar Fenn

Answer: Hello, Welcome to One mSv is the limit for the general public. The background is usually within this limit. But radiation workers have a limit of 20 mSv per year, which is also very safe. Also, doses from medical imaging can contribute. But the benefits from medical imaging offset any...  Read Full »

Kindly help me know the occupational hazards related to the implant manufacturing laboratory.

Query: Hi doctor, I have read an article about disinfectants in implant dentistry now. My brother works in an implant manufacturing laboratory. So, kindly help me know the occupational hazards related to his laboratory work. Are the radiations in his workplace harmful? And also, as his mom had cancer recen...  Read Full »

Dr. Achanta Krishna Swaroop

Answer: Hi, Welcome to We are elated to have you onboard at Regarding occupational hazards, I would say that implant disinfection involves exposure to specific chemical and laser-assisted methods. As dentistry itself is associated with occupational hazards, all the professionals...  Read Full »

How do I calculate radiation dose from three scout scans?

Query: Hello doctor, I had a CT scan of the chest and abdomen. What is odd about this scan is that the technician did three scout scans before the final helical scan, which made me uncomfortable because I do not know how much radiation I received in those scans. When I got the CD, I looked at the dose repo...  Read Full »

Dr. Vivek Chail

Answer: Hello, Welcome to I have seen the reports (attachment removed to protect patient identity).¬†From calculations, the total radiation dose received by you during the CT scan is likely 10 mSv. Please note that scout images give low dose and three scout images will not significantly increas...  Read Full »

I had frequent CT scans. Will I get cancer?

Query: Hi doctor, I am a 50 year old male. My height is 5'11" and weight is 170 lbs. I do not have any major health issue, but my brother and mother had recently come down with leukemia. Recently had a CT scan of the abdomen and pelvis repeated with and without contrast material. Before four years, I also ...  Read Full »

Dr. Vivek Chail

Answer: Hi, Welcome to The recent computed tomography (CT) scan of abdomen and pelvis has a radiation dose of 12.366 mSv which means it is causing an additional cancer risk of 0.06 percent. This is quite low and not a reason to get worried. The radiation dose from the three CT scans for ...  Read Full »

What is NCCT?

Query: Hi doctor, What is NCCT scan? Does it have any side effect?  Read Full »

Dr. Sagar Ramesh Makode

Answer: Hello, Welcome to NCCT, or non-contrast computerized tomography, is an advanced imaging technique akin to an elevated form of X-ray. It involves the acquisition of multiple X-ray images of the targeted body area, which are then assembled to create a more detailed image compared to stan...  Read Full »

Can radiations from PET and CT scan affect other family members?

Query: Hello doctor, Over two years ago my eldest son was diagnosed with lymphoma. He had PET scans and CT scans. These started at the end of my last pregnancy and went on while my son was a newborn and infant. I do not remember him holding the baby, but he came home from scans and was around him. They...  Read Full »

Dr. Vivek Chail

Answer: Hi, Welcome to I have read through your query in detail. Please find my observations below. Your baby is totally safe. There is radiation risk only when doing PET and CT scans. The risk is only to the patient, which means your eldest son in your case. Your newborn was never expo...  Read Full »

Does radiation exposure during x-ray cause cancer?

Query: Hi doctor, I am an 18 year old male. I am obese with weight more than 286 pounds. I got plenty of tests done in a single year. Last year, I got my CT scan of full abdomen followed by five chest x-rays. One CT scan of the brain plain and bone densitometry (DEXA) scan in June and a CT PNS yesterday. N...  Read Full »

Dr. Kumar Indubhushan Sureshprasad

Answer: Hi, Welcome to X-ray and CT scan uses ionizing radiation. Though these are harmful rays, in diagnostic radiology it is generally safe for the patients. Though you have undergone many investigations it is well below the maximum allowable safe dose for the patient. Amount of radiation d...  Read Full »

Is it dangerous for a 3-year-old to sleep near a phone?

Query: Hi doctor, My 3 year old sleeps beside me all the time. I was using my phone while in bed last night. I accidently fell asleep and left the phone down. I normally leave the phone on my bedside locker. I woke this morning, and my son was lying right beside my phone. His head was on top of it. Would t...  Read Full »

Dr. Ashok Kumar

Answer: Hi, Welcome to I read your query and understand your concerns. First of all, I like to inform you that there is little to worry. Fortunately, the standard mobile brands follow stringent radiation control measures, and the radiation emission from the standard phone is well within safe l...  Read Full »

Can a pelvic CT scan increase my chances of having cancer?

Query: Hello doctor, I had a lower GI and pelvic CT scan with contrast done at the age of 36 years. I fly a lot. I want kids. Did this scan harm my eggs or increase my chances of developing cancer? Nothing was found in the scan, and the MSV was 8.  Read Full »

Dr. Vivek Chail

Answer: Hi, Welcome to I have read through your query in detail. Please find my observations below. The contrast CT scan pelvis has exposed you to radiation of 8 mSv as recorded on the machine. For a 36 year old female patient, this means you are exposed to an additional cancer risk of 0.09 ...  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 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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