ALL THE QUIZ'S WE TOOK DURING THE TERM FOUND HERE!

Question 1

You perform a AP lower cervical view in a 25 year-old male. The cervical spine measures 17 cm. The correction factor for regular cassettes is -1 1/2. What mAs would you use?

Hint: if you dont know what kVp to use than look it up on the view guide or in the spine and chest notes. I will typically not give you what it should be, you need to know where to look these up and quickly memorize these.

Answer 1

= 25

Question 2

You perform a lateral lumbar spine view on a 50 year-old female. The lumbar spine measures 25 cm. The correction factor for regular cassettes is +1. What mAs would you use?

Answer 2

= 150

Question 3

When taking a AP thoracic spine view on a 17 year old female with a AP measurement of 16 centimeters and a -3 TCF. What mAs would you use?

Answer 3

= 8

Question 4

You decide to perform a lumbar spine study on a 72 year old female with known osteoporosis. The PA lumbar spine measurement is 16 cm. The TCF for regular cassettes is -1.

A. What TCF should you use for the PA lumbar spine view?

B. What mAs should you use for the PA lumbar spine view?
(1pts)

Answer 4

a. = -2

b. 12.5 MAS

Question 5

You perform a cervical spine study on a 21 year old male. The neck measures 14cm in diameter and the correction factor for regular cassettes is -4. What mAs would be used for the APOM view?

Answer 5

= 16 MAS

Question 6

Why is a wedge filter used for the AP thoracic spine view?

Answer 6

= IT’S USED TO EVEN OUT EXPOSURE BECAUSE THE MEDIASTINUM HAS A NON-UNIFORM DENSITY.

Question 7

A heavily muscled female athlete with neck pain after going to the gym is unresponsive to care. A radiographic study of the neck is performed. Her neck measures 15cm in diameter and the TCF for the radiographic setup is 0. What mAs should be utilized in the neutral lateral view?

Answer 7

50 mas

Question 8

A lumbar spine radiographic study is performed on a 35 year old male with severe low back pain. Because he is unable to stand due to pain he is placed on an exam table without the usual 12:1 grid for the study. The PA lumbar spine measures 21 cm and the TCF for regular cassettes is -5.

What TCF should be used for the PA lumbar spine view in this situation?

What mAs should be used for the PA lumbar spine view in this situation?

Answer 8

a = -9

b = 3.3

Question 9

0/1
Your tube stand brakes break and you are unable to move the tube from the 40” FFD. You decide to go ahead and take the lateral cervical spine radiograph at the 40” FFD. The patient measure 13cm, the TCF for a regular cassette is +1 and your system uses a 10:1 grid. Still using a non-bucky technique:

What would your TCF be?

What would your mAs be?

Answer 9

-2 1/2 TCF and 10 mas

Question 10

If a view had a tube tilt of 45 degrees and you are starting at 40” FFD where should the FFD be when the film is taken?

Answer 10

Move 9 inches closer. FFD = 31

Question 11

If a view had a tube tilt of 15 degrees and you are starting at 40” FFD where should the FFD be when the film is taken?

Answer 11

40 FFD

Question 12

A 40 year old female patient presents to your office with long standing mid back pain. You decide to x-ray her thoracic spine. The AP thoracic thickness is 32cm. The TCF in your office for a regular cassette is -1/2. What is the exposure time at the recommended mA for this view? __________seconds

Answer 12

3/4 or .7 seconds

Question 13

You decide to take a cervical spine study in a 20 year old male following a motor vehicle accident. The neck measures 15 cm in diameter and the correction factor for a regular cassette is +1. What is the exposure time at the recommended mA for this view? __________second

Answer 13

1/4 or .25 seconds

Question 14

There is a high suspicion for a right hip fracture in a 21 year old male after he was hit by a car while riding his bike. What standard view of the hip should not be performed because of this suspicion?

Answer 14

THE FROG LEG VIEW

Question 15

You decide to take an neutral lateral cervical spine view of a 46 year old male following an injury. The cervical spine measures 13cm and the view comes out about twice as dark as it should (overexposed). You have noticed since changing to a new brand of processor chemicals all your x-rays now come out overexposed compared to how they used to. If your Total Correction Factor (TCF) was -2, what will be the new correction factor that will fix this?

Answer 15

Need to half mAs from 12.5 to 6.25 so the new TCF is -4 to -4 1/2

Question 16

You are performing a tunnel view of the knee on an adult. The correction factor for extremity cassettes is -4 and the knee measures 17cm in diameter. What mAs would you utilize for this view?

Answer 16

have to use a buckey because of size of part and need to double the mAs for a AP view. So 30 mAs.

Question 17

You decide to take a PA lumbar spine view on a 45 year old obese male. The correction factor for regular cassettes is -6 and the patient measures 35cm in the PA dimension. What mAs would you utilize for this view?

Answer 17

150 mAs