Radiation Protection in Radiology

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What is the minimum irradiation time generally used in mechanical timers?

1/4 second (correct)
1 second
1/8 second
1/2 second

What is the recommended technique for radiation protection?

Short cone technique
Parallel technique (Long cone technique) (correct)
Bisector technique
Rectangular collimation

How should lead aprons be stored when not in use?

Hung up (correct)
Folded neatly
Stacked on top of each other
Placed in a drawer

What is the percentage reduction in thyroid dose when using a thyroid protective collar?

92% (C) Signup and view all the answers

What is the percentage reduction in gonadal dose when using a lead apron?

98% (C) Signup and view all the answers

What is the approximate radiation dose from a single periapical film compared to the average daily total background dose?

1/27th (B) Signup and view all the answers

What is the recommended frequency for evaluating the dosimeter used by X-ray personnel?

Every 3-4 weeks (B) Signup and view all the answers

What is the recommended thickness of lead coating for the walls and doors in a room containing X-ray equipment?

0.2 mm (B) Signup and view all the answers

Where should the dosimeter be worn by X-ray personnel?

On the collar (C) Signup and view all the answers

Which of the following is NOT a recommended practice for protecting the environment from X-ray radiation?

Allowing X-ray personnel to stand in the examination room or next to the unit (B) Signup and view all the answers

What is the recommended lead coating thickness for the panels separating X-ray devices or located in front of the device?

0.5 mm (A) Signup and view all the answers

In dental practices, what is the reason that brick provides natural protection from radiation?

Dental practices have a relatively low workload (C) Signup and view all the answers

Which of the following is NOT a stage of radiation protection measures?

Protection of the equipment (A) Signup and view all the answers

Which of the following practices is NOT recommended for protecting the patient from radiation?

Using the highest possible dose to ensure image quality (D) Signup and view all the answers

What should be done for pregnant patients requiring radiography, according to the text?

Have them wear a lead apron, reduce the number of films and irradiation time, and take radiographs carefully to avoid repetition (C) Signup and view all the answers

Which of the following statements about radiation protection is TRUE?

The environment should be dark for examining radiographic films (D) Signup and view all the answers

Which of the following is NOT mentioned in the text as a way to protect the environment from radiation?

Implementing regular equipment maintenance schedules (C) Signup and view all the answers

Which of the following is a recommended practice for radiation protection?

Determining the appropriate indication and technique for the patient based on anamnesis and clinical examination (C) Signup and view all the answers