Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

RRP1 31 > Lesson 1-2 (FINALS) > Flashcards

Lesson 1-2 (FINALS) Flashcards

1
Q

Occupational radiation exposure: Dose limit

A

20 mSv/yr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Occupational radiation exposure: General x-ray activity

A

not exceed 1 mSv/yr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

It contributes to the highest occupational
exposure of diagnostic x-ray personnel

A

Fluoroscopy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Personnel exposure is related directly to the x-
ray beam-on time

A

Fluoroscopy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Fluoroscopy: X-ray tube over the table: Disadvantage rationale

A
  • Higher levels of scatter
  • Leakage radiation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Fluoroscopy: X-ray tube over the table advantage and disadvantage

A

Advantage: in terms of image quality
Disadvantage: higher personnel exposures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Fluoroscopy: It is best to position the x-ray tube _____ during mobile & C-arm fluoroscopy.

A

Under the patient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Personnel receive higher exposures

A

Interventional Radiology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Interventional Radiology: Personnel receive higher exposures: Rationale

A

longer fluoroscopic x-ray beam-on time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Personnel exposures are low

A

Computed Tomography

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Contribute to higher exposure

A

Interventional Radiology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Interventional Radiology: Contribute to higher exposure, 2

A
  1. Absence of protective curtain
  2. Use of cineradiography
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Personnel exposures are low

A

Mammography

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Interventional Radiology dose limit

A

500 mSv/yr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

_____ must be provided for interventional radiologists

A

Extremity monitoring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Occupational exposure for nursing personnel & other working in the operating room & intensive care unit is near _____

A

Surgery: Zero

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Computed Tomography: Personnel exposures are low: Rationale

A
  1. CT x-ray beam is finely collimated
  2. Only secondary radiation is present in the examination
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

It contributes to the highest occupational exposure of diagnostic x-ray personnel

A

Mobile radiography

3
Q

Mammography: Personnel exposures are low: Rationale

A

Less scatter radiation due to low kVp operation

3
Q

It is not necessary to provide occupational
radiation monitors for such personnel

3
Q

It is specified only for occupational exposure

A

Dose Limit (DL)

3
Q

Mobile radiography: Wear occupational radiation monitor

A
  1. Radiologic technologist
  2. Anyone who is required to immobilize or hold patients
  3. Personnel who regularly operate C-arm fluoroscope
  4. Personnel who regularly in the immediate vicinity of C-arm fluoroscope
3
Q

The dose of radiation that would be expected to produce no significant radiation effects

A

Maximum Permissible Dose (MPD)

4
Q

Radiation and Pregnancy: Radiobiologic Considerations: Time dependence: major organogenesis

A

2nd-10th weeks

4
Q

It has been replaced by _____

A

Maximum Permissible Dose (MPD): Dose Limits

4
Q

Maximum permissible occupational radiation dose

A

Dose Limit (DL)

4
Q

Radiation and Pregnancy: Radiobiologic Considerations: Time dependence: 1st 2 weeks biologic response

A

resorption of the embryo & no pregnancy

4
Q

Current DL

A

1 mSv/week

4
Q

Radiation and Pregnancy: Radiobiologic Considerations: Time dependence: Least hazardous

A

1st 2 weeks

4
Q

Radiation and Pregnancy: Radiobiologic Considerations: Time dependence: The major organ system of the fetus is developing

A

2nd-10th weeks

5
Q

Radiation and Pregnancy: Radiobiologic Considerations: Time dependence: 2nd-10th weeks biologic response

A

congenital malformation

6
Q

Radiation and Pregnancy: Radiobiologic Considerations: Time dependence: 2nd & 3rd trimester principal response

A

malignant disease during childhood

7
Q

Radiation and Pregnancy: Dose Dependence: Previously noted effects

7
Q

Radiation and Pregnancy: Dose Dependence: Spontaneous abortion

A

< 25 rad (during 1st 2 weeks)

8
Q

Radiation and Pregnancy: Dose Dependence: Enumerate

A
  1. Previously noted effects
  2. Spontaneous abortion
  3. Congenital abnormalities
8
Q

Radiation and Pregnancy: Dose Dependence: Congenital abnormalities

A

Fetal dose: 10 rad

9
Q

One should never knowing examine a pregnant patient with x-rays unless a _____ to do so has been made

A

Patient Information: Documented decision

10
Q

Example x-ray consent

A

Patient questionnaire

10
Q

Patient Information: Enumerate administrative protocols

A
  1. Elective booking
  2. Patient questionnaires
  3. Posting
11
Q

An alternative procedure to have the patient herself indicate her menstrual cycle

A

Patient questionnaire

11
Q

Radiologic Technologist

A

100 mrem/yr
1 mSv/yr

12
Q

Radiologist receive _____ than radtech

A

higher dose (esp. during fluoroscopy)

13
Q

Highest exposure
1.
2.
Safest
1.
2.

A

Highest exposure
1. Mobile radiography
2. Fluoroscopy
Safest
1. Ultrasound
2. Computed Tomography

RRP1 31 (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions