X-Ray: Both Knees Ap View (Standing)

Specimen Required

NONE

Fasting Required

Purpose of the Test

An X-ray of both knees in the AP (anterior-posterior) view while standing is a medical imaging test that uses low levels of radiation to produce images of the bones and other structures of both knees. It can show the alignment and positioning of the bones, as well as any abnormalities, such as fractures, bone spurs, or signs of arthritis.

When this test is required

A healthcare provider may order an X-ray of both knees in the AP view while standing if a patient is experiencing knee pain, swelling, stiffness, or limited range of motion. The test may also be used to diagnose conditions such as osteoarthritis, rheumatoid arthritis, or gout. An X-ray of both knees in the AP view while standing may also be ordered if the patient has sustained a knee injury, such as a sprain or fracture.

What the Test Detects

Preparation for the Test

There is generally no special preparation needed for an X-ray of both knees in the AP view while standing. Patients may be asked to remove any metal objects from the area being imaged and wear a hospital gown or loose clothing that does not contain metal fasteners. During the test, the patient will stand in front of the X-ray machine with both knees together and slightly bent. The healthcare provider or technician may adjust the position of the patient’s legs to obtain the best possible image. The test is usually completed in a few minutes and is generally painless. After the test, the healthcare provider will review the results with the patient and discuss any necessary next steps or treatment options.

Sample Requirements

No sample is required for an X-ray of both knees in the AP view while standing.

Additional Notes

Before the X-ray, patients may be asked to remove any metal objects from the area being imaged and wear a hospital gown or loose clothing that does not contain metal fasteners. During the test, the patient will stand in front of the X-ray machine with both knees together and slightly bent. The healthcare provider or technician may adjust the position of the patient’s legs to obtain the best possible image. The test is usually completed in a few minutes and is generally painless. After the test, the healthcare provider will review the results with the patient and discuss any necessary next steps or treatment options.

Selected Tests