Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › X-Ray Machine Registration › Ionizing Radiation Rules Governing the Use of Radiation Machines › Part 10 - VETERINARY X-RAY INSTALLATIONS › FIXED RADIOGRAPHIC INSTALLATIONS › Section R. 333.5409 - Conditions of operation

Current through Vol. 24-12, July 15, 2024
Rule 409.
(1)
						An operator shall properly utilize the beam-limiting devices provided to
						restrict the useful beam to the smallest area consistent with clinical
						requirements. Particular care shall be taken to align accurately the x-ray beam
						with the patient and film.
(2) The
						operator shall ensure the presence of adequate filtration before a radiographic
						procedure pursuant to R 333.5405(2).
(3) When a patient or film is held in
						position for radiography, mechanical supporting or restraining devices shall be
						available and shall be used unless contraindicated. Proper use of these devices
						shall permit the operator to stand behind the primary control shield during
						most radiographic procedures.
(4)
						If the patient or film is held by 1 or more individuals, each individual shall
						wear protective gloves and body aprons of 0.5 millimeter minimum lead
						equivalence. Each individual shall be so positioned that no part of his or her
						body is struck by the useful beam and that his or her body is as far as
						possible from the edge of the useful beam.
(5) Only individuals whose presence is
						necessary shall be permitted in the radiographic room during an exposure. These
						individuals shall be protected as specified in subrule (4) of this rule unless
						protected by an approved primary barrier.
(6) If an auxiliary foot switch is provided
						as specified in R 333.5405(12), it shall be used only by a licensed
						veterinarian and only at times when sufficient personnel are not available to
						permit use of the primary exposure switch specified in R
						333.5405(11).
(7) To protect the
						feet of the veterinarian or his or her assistant from the primary beam while
						restraining patients, the underside of the radiographic table shall be
						protected by at least 1.6 millimeter (1/16 inch) lead or equivalent protection
						approved by the department.
(8)
						Personnel monitoring shall be performed in controlled areas for each individual
						occupationally exposed to ionizing radiation from diagnostic x-ray equipment.
						Individual monitoring devices, such as film badge dosimeters or
						thermoluminescent dosimeters, shall be permanently assigned to each
						occupationally exposed individual. This monitoring shall be continuous during
						employment as a radiation worker.
(9) Personnel exposure records shall be kept
						on permanent available file at the facility where the exposure
						occurs.
(10) Monitoring devices
						used to estimate whole body exposure shall normally be worn on the chest or
						abdomen. Monitoring of all other body parts shall comply with R
						333.5065.
(11) Monitoring devices
						worn to estimate personnel occupational exposure shall not be worn by the
						individual when he or she is exposed as a patient for a medical or dental
						reason.
(12) Medical x-ray screen
						type films and intensifying screens shall be employed to reduce patient
						exposure except in cases where a noticeable decrease in image definition
						resulting from increased sensitivity may reduce the clinical value of the
						examination.
(13) Film processing
						materials and techniques shall be those recommended by the x-ray film and
						processing materials manufacturers unless otherwise tested to ensure maximum
						information content of the developed film. Sight developing is not permitted
						except under extreme emergency conditions. Correct temperature control and
						development time are necessary to minimize radiation dose to the
						patient.
(14) A radiographic x-ray
						system shall not be left unattended without locking the apparatus, room, or
						building in some manner which prevents use of the apparatus by unauthorized
						persons.