Inspectors typically provide advanced notifications of facility visits. If your facility is to be visited, the state inspector will contact the person who is most accountable for your medical x ray program to schedule the inspection. State inspectors make every effort to accommodate a facility's patient schedule. Inspectors are instructed to work with facility staff when on site and to avoid disruption of patient care whenever possible. It should be noted that state statutes require that facilities provide reasonable access to inspectors. There are some following tips of inspection of medical x-ray machine for guides.
Inspection Duration
The length of an inspection varies and is contingent upon the number of x-ray tubes at your facility, your patient schedule and the number of questions you may have regarding the inspection or other related matters. Generally, administrative record review takes 30 minutes to 1 hour. The average inspection time for a facility with three tubes is approximately 2.5 to 3.5 hours not including the exit interview.
It should be noted that inspectors travel to all areas of our state and on occasion weather, traffic and delays at other facility inspections may cause an inspector to deviate from a scheduled inspection time. Inspectors are instructed to inform facilities of significant delays in their arrival.
Records Needed for Inspection
To facilitate the inspection process and avoid confusion and delays, each facility should have the following records available for review at the time of inspection.
1. Written radiation safety practices.
2. Current registration form.
3. Maintenance, preventive maintenance, calibration records and owner operator manuals for all of your medical x-ray machine and film processing systems.
4. Dosimetry badge reports.
5. The approximate numbers of exposures made in each operatory per week.
6. The frequency of your processing system(s) chemical changes.
Medical x-ray machine may be inspected for the following:
1. Radiation safety:
1) The physical layout that will allow an operator to stand at least six feet from the source of ionizing radiation or behind a protective barrier during x-ray exposures.
2) Testing to ensure that the exposure control terminates the x-ray exposure when pressure is released from exposure control button.
3) Availability of technique charts indicating machine settings for various projections and patient sizes.
4) Availability of patient protective shielding and proper storage of same.
5) Stability of the tube head: Does the tube remain in position without human assistance?
6) Visual evaluation of the tube head to ensure that it is not damaged or leaking oil.
7) Measurement of beam size to ensure that it does not exceed regulatory requirements.
8) Visual evaluation to ensure that the cone/collimator is intact and in place.
9) Measurement of stray radiation levels.
2. Medical x-ray machine operating characteristics:
1) Measurement to ensure that kVp accuracy is within plus or minus 10% of the selected kVp.
2) Measurement of timer accuracy within plus or minus 10% of a pre-selected time.
3) Reproducibility: Measurement to ensure that the radiation output is consistent, to within plus or minus 10%, when all machine settings remain the same.
3. Half Value Layer:
1) Is the x-ray beam properly filtered?
2) Entrance skin exposure: Is the measured entrance skin exposure (ESE) for the average patient within the accepted range?

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