Okla. Admin. Code § 310:281-11-5

Current through Vol. 42, No. 7, December 16, 2024

Section 310:281-11-5 - Radiographic entrance exposure limits

The in-air exposure determined for the technique used for the specified average human adult patient thickness for routine medical radiography cannot exceed the entrance exposure or dose limits shown below.

(1) Entrance exposure and dose limits for the following radiographic technique are:

(A) for a 23 cm P/A chest has the exposure of 2 mR and the exposure/dose limit of 30 mR;

(B) for a 23 cm P/A grid chest has the exposure of 25 mR and the exposure/dose limit of 35 mR;

(C) for a 23 cm abdomen(KUB) has the exposure of 500 mR and the exposure/dose limit of 600 mR;

(D) for a 23 cm lumbar spine (A/P) has the exposure of 500 mR and the exposure/dose limit of 800 mR;

(E) for a 13 cm cervical spine (AP) has the exposure of 125 mR and the exposure/dose limit of 200 mR;

(F) for a 15 cm skull (lateral) has the exposure of 150 mR and the exposure/dose limit of 250 mR;

(G) dental intraoral exams have a exposure of 00 mR and the exposure/dose limit of 600 mR; and

(H) for computed tomography exposures for the following techniques are:

(i) for a 16 cm adult head the exposure is 600 mR;

(ii) for a 32 cm adult abdomen the exposure is 3500 mR; and

(iii) for a 16 cm pediatric abdomen the exposure is 2500 mR.

(iv) These are CTDI w dose measurements as recommended by the American College of Radiology in their voluntary certification of CT system.

Okla. Admin. Code § 310:281-11-5

Added at 8 Ok Reg 3503, eff 8-15-91 (emergency); Added at 9 Ok Reg 1643, eff 5-29-92; Amended at 21 Ok Reg 1037, eff 5-13-04

Amended by Oklahoma Register, Volume 38, Issue 24, September 1, 2021, eff. 9/11/2021