Which of the following is a common contraindication for DXA imaging?

• A. Recent dental work
• B. Pregnancy
• C. Asthma
• D. High blood pressure

Answer: (B)

Pregnancy is considered a common contraindication for DXA (Dual-Energy X-ray Absorptiometry) imaging due to the exposure of the fetus to radiation. Although the dose of radiation from a DXA scan is minimal and generally considered low-risk for adults, it is prudent to avoid any potential risk to developing fetuses. The safety of the unborn child is of paramount importance, and therefore, healthcare practitioners typically advise against performing DXA scans during pregnancy unless absolutely necessary and when the benefits clearly outweigh the risks.

Other conditions, while they may require additional considerations or precautions, do not present the same level of risk as pregnancy. For instance, recent dental work may cause discomfort during certain imaging positions, but it is not a contraindication for DXA. Similarly, conditions like asthma or high blood pressure may need to be monitored during the procedure but do not inherently prevent a patient from being scanned. Thus, the potential radiation risk to a fetus makes pregnancy a definitive contraindication for DXA imaging.