mAs
kVp
15% Rule
Fun Facts
100

What does mAs stand for?

milliamperage-seconds
100

What does kVp stand for?

kilovoltage peak

100

The 15% rule states that an increase in kVp by 15% is equivalent to doing what to mAs?

Doubling mAs

100

Who is known as the father of x-ray?

Wilhelm Röntgen

200
Is quantity or quality controlled by mAs?

Quantity

200

An increase in kVp has what affect on scatter?

Increases scatter

200

When using the 15% rule, if the mAs is halved, the kVp should be changed in what way?

It should be increased by 15%

200

What is the powerhouse of the cell?

Mitochondria

300

What phenomenon is present with low mAs?

Quantum Mottle

300

How much is kVp increased by when attempting to maintain the same exposure?

15%

300

What is the main clinical advantage of increasing kVp and applying the 15% rule to halve the mAs?

Reducing patient dose

300

What color is made by mixing light beams of all the primary colors?

White light

400

When the 15% Rule is applied and kVp is increased what happens to mAs?

It is doubled

400

If an image is taken with low kVp what kind of contrast would be shown on the image?

High Contrast - Short Scale

400

If the original technique is 80 kVp and 20 mAs, what is the new mAs if the kVp is increased to 92?

10 mAs

400

How many bones are you born with?

270-300 bones. (Will take any answer in that range)

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