Radiologic Technologist how-to
How to Position a Patient for a PA Chest X-Ray
The PA chest is one of the most common exams. Good positioning gives the radiologist a clear look at the heart and lungs.
The PA chest is one of the most common exams. Good positioning gives the radiologist a clear look at the heart and lungs. In short: confirm; have; stand, then complete the remaining steps below.
Step by step
Confirm the patient’s identity with two identifiers and check the order.
Have the patient remove jewelry and clothing with metal from the chest area and put on a gown.
Stand the patient facing the image receptor with the chin raised.
Roll the shoulders forward to move the shoulder blades out of the lung fields.
Center the central ray at the level of T7 and collimate to the lung fields.
Ask the patient to take a deep breath and hold it on the second breath.
Take the exposure, check the image for rotation and inspiration, and send it to PACS.
Safety reminders for radiologic technologists
- Follow ALARA: time, distance and shielding
- Wear your dosimeter at all times in the department
- Use proper body mechanics and lift help for patient transfers
- Follow infection-control procedures and clean equipment between patients
Key terms
Radiograph · ALARA · kVp · mAs · Collimation · Central ray: see the full radiologic technologist glossary.