If an initial exposure is made using 800 mA, 0.02 sec, 16 mAs, 70 kVp, 58” SID, 4” OID, 5:1 grid ratio, 0.2 mm focal spot and 3.0 mm of filtration, with a 14 x 17 in field size, and the technologist changes the OID to 8” for a second exposure without changing any other factors, what differences would you expect to see in the second exposure?1) Increased IR exposure2) Decreased IR exposure3) Increased contrast4) Decreased contrast5) Increased spatial resolution6) Decreased spatial resolution7) Increased distortion8) Decreased distortion
Elongation of a radiographic image will most likely occur fr…
Elongation of a radiographic image will most likely occur from a/an:
Spatial resolution improves with decreased _________ blur.
Spatial resolution improves with decreased _________ blur.
During a fluoroscopy procedure, the x-ray technologist stand…
During a fluoroscopy procedure, the x-ray technologist stands at 5 meters from the x-ray tube for 1 hour and acquires an equivalent dose of 0.1 mSv. If the technologist had stood at a distance of 1 meter, what would their dose have been?
The inverse square law defines the relationship between dist…
The inverse square law defines the relationship between distance and:
If an optimal radiograph is acquired at 72 inches with an ai…
If an optimal radiograph is acquired at 72 inches with an air kerma of 4 mGy, what will the air kerma be if the distance is reduced to 40 inches?
Scattered radiation that hits the image receptor produces:
Scattered radiation that hits the image receptor produces:
A satisfactory x-ray of the wrist is produced using a techni…
A satisfactory x-ray of the wrist is produced using a technique of 300 milliamperes (mA), 15 milliseconds, 50 kilovoltage peak (kVp), and a source-to-image distance (SID) of 40 inches. How should the mA be changed if the exposure time is decreased to 10 milliseconds?
All factors remaining constant, which of the following set o…
All factors remaining constant, which of the following set of exposure conditions would yield an image with the GREATEST radiographic IR exposure?
Contrast increases with all of the following EXCEPT
Contrast increases with all of the following EXCEPT