Unit 1 POR Exam

Question 1

To add/subtract fractions-

Answer 1

they need a common denominator. Find LCM if not

Question 2

To multiply fractions-

Answer 2

numerator by numerator; denominator by denominator

Question 3

To divide fractions-

Answer 3

invert second fractions and multiply

Question 4

12 inches=__ foot
3 feet =__ yard
1 inch=__cm
1 meter=__ cm
1 km=___meters

Answer 4

-1
-1
-2.54
-100
-1000

Question 5

Therapeutic ranges-

Answer 5

-used in radiation therapy; stronger frequency over longer period of time
-4-10 meV
-1-60 min
- less than 20 mA

Question 6

Diagnostic Ranges-

Answer 6

-what we use;
- 10-1200 mA
- 0.001 to 10 seconds
- 25-150 kVp

Question 7

Characteristics of table tops-

Answer 7

-support for patient
-uniform radiolucent surface( bakelite or carbon graphite fiber)
-easy to clean
-dif. to scratch
-fixed tilting models(90-15 tilt)
-footboard, shoulder supports, and handgrips
-may lower