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CLUSTER 1 > CLOSE DOOR 1 > Flashcards

CLOSE DOOR 1 Flashcards

1
Q

A cumulative timer is designed to________of the fluoroscopy beam on time.

A

Make the radiologist aware

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2
Q

Primary beam is _______.

A

The useful beam

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3
Q

The intensity of scatter radiation 1 meter from the patient is approximately____of the intensity of the beam to the patient.

A

0.1%

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4
Q

At the level of the table top, the intensity of fluoroscopic beam should not exceed______for each mA of operation at 80 kVp.

A

2.1 R/min

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5
Q

At controlled area is one occupied primarily by_______.

A

Radiology Personnel & Patients

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6
Q

A secondary barrier is designed to absorb_____radiation.

A

Leakage & Scattered

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7
Q

A quantity that reflects both dose and volume of tissue irradiated is the

A

Dose area products

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8
Q

Devices designed total accumulated radiation intensity are called ____

A

Dosimeter

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9
Q

A quality assurance program program monitors

A

People

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10
Q

A quality control program is for

A

Film processors
CTscanners
X-raysTubes

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11
Q

The determination of how consistently radiologists image interpretations match patients ultimate diagnosis is called __

A

outcome analysis

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12
Q

A QC program should include ___ routine performance monitoring and maintenance

A

acceptance testing

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13
Q

The first step of the QA recommended by the Joint Commission on Accreditation of Healthcare Organizations (JCAHO) is to ___

A

assign responsibility

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14
Q

Medical facilities have quality control programs in place in order to __

A

have JAHCO approval and accreditation
ensure quality patient care
receive payment from insurance carriers

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15
Q

Acceptance testing should never be done by a ___

A

manufacturer’s representative

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16
Q

Most quality control testing on radiographic equipment is done

A

annually

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17
Q

All general purpose radiographic units have a minimum of ___ mm Al filtration.

A

2.5

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18
Q

Collimator must be accurately aligned within + ____% on the SID.

A

2

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19
Q

Focal spot size measure with a

A

pinhole camera
slit camera
star patern

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20
Q

It is acceptable to perform a ___ test than measuring a focal spot size

A

Line pair

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21
Q

The measured kVp should be within ± ___ % of the kVp indicated on the console

A

5

22
Q

Comparing the mR output at 50 mA @ 0.2 sec, 100 mA @ 0.1 sec and 200 mA @ 0.05 sec is part of a test for?

A

Reciprocity

23
Q

What is the testing device used to measure the casessette film screen contact?

A

Wire mesh

24
Q

When the viewbox light is out __

A

All the bulbs must be replaced.

25
Q

Federal Law mandates that entrance skin exposure (ESE) should not exceed to _____ during normal fluoroscopy.

A

100mGy/min

26
Q

Unlimited ESE by Federal Law is permitted during ______

A

cineradiography

27
Q

Quality control testing for computed tomography must be preformed on ____ basis

A

daily and weekly
Monthly
Annually

28
Q

_____ is used to test for noise and uniformity on CT imaging system

A

A waterbath

29
Q

Processor crossover racks can be clean on a ___ basis.

A

daily

30
Q

Processor should be monitored everyday for __

A

sensitometric measurement
Water and chemical temperature
Replenishment tank levels.

31
Q

Following a good processor, QC program reduces the need for ____ maintenance.

A

unscheduled

32
Q

For diagnostic x-ray personnel, the highest occupational exposure occurs during

A

fluoroscopy
mobile radiography

33
Q

Personnel working in interventional radiography should be provided with

A

extremity monitoring

34
Q

The lens of the eye should never receive more than

A

150 mSv (15 rem)

35
Q

Dose limits are described as

A

effective dose

36
Q

Occupational dose is described as

A

dose equivalent

37
Q

The tissue weighting factor has a higher value for tissues with more

A

radiosensitivity

38
Q

For nursing personnel present during mobile x-ray imaging, a personnel monitoring device is required

A

Not at all

39
Q

The dose limit to extremities is

A

500 mSv/yr (50 rem/yr)

40
Q

The lowest occupational exposure dose xray personnel occurs during

A

CT
MAMMOGRAPHY

41
Q

The Dose limit of the General Public is

A

1mSv/yr or 100mrem/yr

42
Q

The best way for technologist to reduce occupational exposure is to follow the principals of

A

ALARA
TIME AND DISTANCE
SHIELDING

43
Q

Technologist working fluoroscopy should use the use the radiologist as shielding whenever possible in addition to apron and curtains

A

TRUE

44
Q

Optical stimulated luminescent monitors are superior to the thermoluminescent dosimeters in that they are

A

more sensitive to lower exposure

45
Q

During fluoroscopy the exposure to the collar is _______ times greater than the trunk of the body under protective apron

A

20%

46
Q

Occupational radiation monitoring is required if the individual may get ______ recommended dose limit

A

10

47
Q

A protective apron with a thickness of 0.25mm lead equivalent is the minimum required.

A

TRUE

48
Q

The preferred way to hold patients who are unable to support themselves is to use a?

A

Restraining Device

49
Q

The dose limit for a technologist during pregnancy is?

A

0.5msv/mo or 50mrem/mo

50
Q

Every radiology department should provide a radiation safety program that include.

A

l. Training new employees
ll. Periodic in services for all employees
lll. Counseling during pregnancy
ALL OF THE ABOVE

CLUSTER 1 (5 decks)

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