Which combination of variables will result in a radiograph with the highest contrast?

_________ is defined as the ability to image two separate objects and visually detect one from the other.

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 mAs to 5 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

The automatic collimator:

To ensure an acceptable amount of unsharpness during macro-radiograpic or mammographic studies, a/an ______________ should be employed.

Calculate the new mAs if 15 mAs was originally used with a 16:1 grid and the repeated radiograph will use a 6:1 grid.

Which type of grid pattern will result in a radiograph with the least amount of primary beam cutoff?

Which of the following projections would result in foreshortening of the anatomy being imaged?

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 filtration to 2.5 mm Al 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

Which generator produces the least amount of IR exposure per mAs?