Final answer:
The proper patient instructions for the AP projection of the abdomen with the patient in supine position include lying flat on the back, keeping legs straight and close together, taking a deep breath and holding it, and being informed about the procedure.
Step-by-step explanation:
For the AP (anteroposterior) projection of the abdomen with the patient in supine position, the following patient instructions should be given:
- Ask the patient to lie flat on their back on the X-ray table, with arms relaxed at their sides.
- Instruct the patient to keep their legs straight and close together, without crossing them.
- Ensure that the patient's head is centered and aligned with their body.
- Ask the patient to take a deep breath and hold it while the X-ray is being taken.
- Let the patient know how long the X-ray procedure will take and assure them that it is painless and non-invasive.