Matters needing attention about upper limb photography are not included here.

Matters needing attention about upper limb photography are not included here.

Comprise at least one joint.

Babies' bones and joints should be ingested bilaterally.

Grid s must be used.

D is generally 75- 100cm.

Answer: c

Precautions for limb photography: (1) Read the application form carefully, understand the medical history, make clear the purpose of examination, and choose the correct photographer.

A little. (2) Radiography of long bones of limbs should include upper and lower joints, and at least adjacent diseases should be included when the lesions are confined to one end.

Change the joint at one end to clarify its anatomical position. The long axis of the limb should be parallel to the long axis of the box. (3) For diagnosis, it needs to be in the same position.

When the front and side images are displayed in the photo, the limbs should be in the same direction, and the joint surfaces displayed in the photo should be in the same horizontal line.

Let's go When the cassette is exposed twice, the unexposed side should be covered with lead skin.

(4) When the upper and lower limbs are in the photographing position, the upper and lower limbs

Limb orthosis is basically anteroposterior (hand, wrist joint and clavicle are anteroposterior), and the sagittal plane is required to be perpendicular to the box body; Upper limb lateral position is basic.

Because the inside of the limb is close to the cassette (the outside of the scapula is close to the cassette) and the side of the lower limb is close to the cassette outside the limb, a crown is needed.

The front is perpendicular to the box. (5) When taking photos of trauma patients, try to change the direction of the X-ray center line or move the photographic bed.

Face, etc , in order to meet the requirements of the photography post. If you need to move your limbs, be light, accurate and fast to avoid fracture and dislocation or

Increase the pain of patients. (6) Infantile osteoarthrography, routine simultaneous shooting of bilateral images for comparison. Adult osteoarthrography

When it is necessary to take an image of the contralateral limb, the shooting conditions should be the same as that of the inspected side. (7) When shooting thick parts, the filter grid should be used.

, and choose the appropriate filter thickness, and should consider the influence of anode effect. The approach should be selected according to the size of the parts to be inspected.

The suitable irradiation field and the size of the cassette should completely include the soft tissue of the examined part. The distance of focal film is 75 ~ 90 cm. (8) Go when taking pictures

Besides clothes, foreign bodies and dressings, we should also pay attention to the X-ray protection of the examinee, especially the use of posture protection.