Axis deviation can be a normal variant

You are caring for a 64-year-old woman with chest pain and shortness of breath. She is alert and oriented with an open airway. Her breathing is adequate. She has a normal pulse and her skin is warm and dry. Which of the following should you do next?

A) Obtain her heart rate and blood pressure. B) Prepare for immediate transport. C) Inquire about history of heart problems. D) Hook up the automatic external defibrillator.

Which of the following interactions has a significant impact on the x-ray image?

a. Compton scattering b. coherent scatter c. pair production d. photodisintegration