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X-RAY THE FOOT

 

X-Ray Images the Foot


You have a formal request for a radiologic examination of the foot. You have the assistance of additional personnel if required. You will need a properly equipped X-ray exposure room with various sizes of film in cassettes, sandbags, lead apron, letter markers, calipers, and various sponges.

1.  Select the required view(s) based on the request.

2.  Gather the necessary materials and supplies.

a.  Appropriate cassettes.

b.  Radiographic film.

c.  Sandbags.

d.  Letter markers.

e.  Tape.

f.  Positioning sponges.

g.  Lead shielding.

h.  Calipers.

3.  Prepare the patient.

a.  Bring the patient into the X-ray room.

b.  Ensure the patient is properly dressed.

(1)  Ensure foreign objects are removed from patient as necessary.

(2)  Ensure the patient's clothing is removed as required.

(3)  Use a drape sheet or patient gown to cover the patient as needed.

c.  Explain the procedure if applicable.

d.  Assist the patient onto the X-ray table.

4.  Measure the body part through the entry-exit site of the central ray.

5.  Set the control panel.

a.  Consult the technique chart.

b.  Set the appropriate mAs and kVp on the control panel.

6.  Select the proper size cassette.

NOTE: Use 1/2 of a 10" X 12" cassette for the AP (dorsoplantar) and oblique views and a 10" X 12" cassette for the lateral view.

7.  Place the cassette on the table lengthwise.

8.  Position the overhead tube.

a.  Set the tube angle perpendicular to the film.

NOTE: Angle the tube 10 degrees cephalic for the AP view.

b.  Set the source to image receptor distance (SID) to 40 inches (101cm).

c.  Center the tube to the portion of the film being used.

d.  Adjust the conefield to full field coverage.

9.  Position the foot.

a.  DP/AP view.

(1)  Place the patient supine or seated on the table.

(2)  Flex the knee of the affected side to place the plantar surface of the foot in contact with the cassette.

(3)  Place the foot parallel to the long axis of the cassette.

(4)  Center the foot to the appropriate half of the cassette.

(5)  Central ray directed to the base of the 3rd metatarsal.

b.  Oblique view.

(1)  Place the patient supine or seated with both legs fully extended on the table.

(2)  Rotate the foot and leg of the affected side medially until the plantar surface of the affected foot forms a 30 degree angle with the cassette.

(3)  Place the foot parallel to the long axis of the cassette.

(4)  Center the foot to the appropriate half of the cassette.

(5)  Central ray directed to the base of the 3rd metatarsal.

NOTE: The leg of the affected side should exit the lateral edge of the cassette.

c.  Lateral view.

(1)  Place the patient laterally recumbent.

(2)  Place the plantar surface of the foot perpendicular to the cassette.

(3)  Position the foot and leg to form a 90 degree angle.

(4)  Center the foot with the plantar surface of the foot parallel to the long axis of the cassette.

(5)  Central ray directed to the 1st medial cuneiform.

10.  Immobilize the body part as required.

a.  AP: Place the knees against each other.

b.  Oblique: Place a buttress between the knees.

c.  Lateral: Place a sandbag under the knee of the affected side.

11.  Place the appropriate letter marker on the cassette.

12.  Place the lead apron across the patient's lap.

13.  Tell the patient, "DO NOT MOVE."

14.  Make the exposure.

15.  Tell the patient, "RELAX," and remove immobilization.

16.  Develop the exposed film with the patient's identification. 13.  Gave the proper pre/post exposure instructions.

 

David L. Heiserman, Editor

Copyright   SweetHaven Publishing Services
All Rights Reserved

Revised: June 06, 2015