Dose of Radiation Harmful In Pregnancy

Patient : Is it safe to go through air port scanning machines during first trimester?
Doctor :   Fetuses in the first trimester are most sensitive to radiation. It is believed that within 2 weeks after conception, a d ose of 100 mGy can cause fetal death. Effect of radiation exposure in the first trimester is an all or nothing phenomenon: the fetus will either survive with no anomalies or die. The radiation dose of airport scanners is 0.1 mGy. The cutoff radiation dose in pregnancy is 5000mGy. There have been no studies on its effect on fetuses but it is believed to be negligible. I do hope I have answered your question. Take care always.

Related Q&A

Q: Insulin does not cross the placenta but glucose does, how will the baby’s body handle elevated glucose in the m...

Q: Is it possible to get pregnant while on the implanon? And if so, would the fetus survive or would it die with the imp...

Q: I have been on BCP for a while..It it normal to still breakthrough bleed? The blood is dark red to brown what can I d...

Q: My husband and I are trying to get pregnant and nothing seems to be happening. We have kids already but we want to ha...

Q: Is it possible to be pregnant an still see my monthly periods



Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon