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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What are the effects of diagnostic radiation exposure in a human body?

Query: Hi doctor, I just had a CTA of the brain and neck. So I had multidetector volumetric CT acquisition of head from skull base to the vertex, which produced axial, coronal, and sagittal images. The intravenous multidetector CT angiography of the aortic arch to vertex was obtained. I was in the CT scan...  Read Full »

Dr. Varun Chaudhry

Radiodiagnosis Physician, Radiologist

Answer: Hi, Welcome to icliniq.com. Thanks for your query, and I hope you are doing well. A CT (computed tomography) angiogram of the head and neck is a lengthy procedure as we have to plan the pre and post-contrast sequences from upper chest to vertex. Usually, the radiation dose is 6 to 10 mSv (mSv is m...  Read Full »

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

Medical Oncologist, Radiation Oncologist, Radiotherapist

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/ask-a-doc...  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 th...  Read Full »

Dr. Ashok Kumar Choudhary

Andrologist, General Practitioner, Geriatrician, Psychiatrist, Psychologist Counsellor, Psychotherapist, Sexologist

Answer: Hi, Welcome to icliniq.com. 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 li...  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?  Read Full »

Dr. Jimesh H Mavani

General Practitioner, Obstetrician And Gynaecologist

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 »

Does overexposure or repeated exposure to radiation carry a risk of cancer?

Query: Hi doctor, I am anxious because I have been having chest pain after COVID-19. I took nine chest x-rays, one abdomen x-ray, two CT scans,and one abdomen CT scan. I am so scared that all the radiation exposure has increased my cancer risk, and these tests were done in a little time. Will I get cancer...  Read Full »

Dr. Ruchi Bahuguna

Radiodiagnosis Physician, Radiologist

Answer: Hello, Welcome to icliniq.com. I went through your case history and would like to discuss with you the following points. Radiation from one chest x-ray is roughly about 0.02 mSv, and one x-ray abdomen is approximately about 0.07 mSv, one CT (computed tomography) chest is approximately about 5-8 mS...  Read Full »

How to get rid of my fear about testicular cancer?

Query: Hello doctor, I am a 38-year-old male. I have always been terrified of testicular cancer. A few months back, I went to see a urologist for a checkup who examined my testicles and found no anomalies. I was completely fine. I trust him, but I was wondering how often I should get myself checked? I kno...  Read Full »

Dr. Samer S J Altawil


Answer: Hi, Welcome to icliniq.com. Testicular cancer is rare. You should not be scared of having it until you have risk factors like undescended testis, exposure to radiation, family history of testicular cancer, smoking, or HIV infection. The self-examination is sufficient, and once been checked by a ...  Read Full »

Will CT chest and IV contrast done multiple times cause cancer?

Query: Hi doctor, I suffer from tachycardia post covid for two weeks. I had a nuclear stress test with Lexiscan as I could not able to do treadmill. After a week, I did a chest CT with IV contrast for knowing whether I have a blood clot or not. Now I have overcome anxiety developed due to high radiation e...  Read Full »

Dr. Vivek Chail

Family Physician, General Practitioner, Radiodiagnosis Physician, Radiologist

Answer: Hi, Welcome to icliniq.com. Radiation exposure from diagnostic images causes a small increased risk of developing cancer. It is much more significant in children and it is less in adults. There are many factors in radiation exposure that is responsible for the development of cancer. The small radi...  Read Full »

Does watching esophagus manometry affect the eyes?

Query: Hi doctor,I have a question about radiation. I had an esophageal manometry with high resolution together with a video scan of the esophagus. I was in a high flat bed and had contrast-liquid while they looked at my esophagus emptying that is swallowing process. They of course used as a small dose ...  Read Full »

Dr. Vivek Chail

Family Physician, General Practitioner, Radiodiagnosis Physician, Radiologist

Answer: Hi, Welcome to icliniq.com. The radiation is focused on the location of study and therefore the x-ray emitted was towards your esophagus. Your eyes were safe and did not receive harmful levels of radiation. The nurse is supposed to wear the glasses because she attends many procedures on a daily basi...  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

Family Physician, General Practitioner, Radiodiagnosis Physician, Radiologist

Answer: Hi, Welcome to icliniq.com. 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 exposed to ...  Read Full »

What is NCCT?

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

Dr. Sagar Ramesh Makode

Cardiologist, General Medicine Physician, Internal Medicine Physician, Family Physician, General Practitioner

Answer: Hello, Welcome to icliniq.com. NCCT is a non-contrast computerised tomography. It is just a higher version of x-ray. It is like multiple x-rays taken of your body part to construct a better image than the x-ray. Single scan has no side effects. However, if multiple scans are being done, then there ...  Read Full »

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