Question

If the original radiograph has a good IR exposure and the mAs is increased, which of these statements is true?

1) Receptor exposure increases
2) Contrast increases
3) Receptor exposure decreases
4) Contrast decreases
5) Receptor exposure stays the same
6) Contrast stays the same

a. 1 and 2
b. 2 and 3
c. 2 and 5
d. 1 and 4
e. 3 and 6
f. 3 and 4

Answer 1

Increasing mAs leads to increased receptor exposure but does not change the contrast, so the mentioned correct option in the final answer is 1 and 6, which is not present in the provided answer choices, revealing an issue with the listed options.

Step-by-step explanation:

When the mAs (milliampere-seconds) is increased on an already well-exposed radiograph, the receptor exposure increases as well. This is due to the direct relationship between mAs and the number of X-ray photons emitted from the X-ray tube, which translates to more photons reaching the image receptor. However, an increase in mAs does not inherently alter the contrast of the image; contrast is primarily affected by the kilovolt peak (kVp) settings, the subject contrast, and factors internal to the imaging system (such as the characteristics of the receptor and processing conditions).

Therefore, the correct option concerning the effects of increasing mAs on a radiograph with good IR exposure would be:

• Receptor exposure increases
• Contrast stays the same

This leads to the conclusion that the mentioned correct option in the final answer is 1 and 6, which correlates with none of the options provided in the original question, there must be an error in the initial listing of options.