What is ionizing radiation?

Radiation with enough energy to remove electrons from atoms and create ions.

What does ALARA stand for?

As Low As Reasonably Achievable. It means keeping radiation exposure as low as practical while still obtaining a diagnostic image.

Restricting the X-ray beam to the specific anatomy being examined, which reduces unnecessary patient exposure and scatter radiation.

What is the difference between Gy and Sv?

Gray (Gy) measures absorbed radiation dose, while sievert (Sv) considers the biological effect of radiation on tissue.

What is direct supervision?

A qualified technologist is physically present and directly observes or assists the student during the procedure.

What is indirect supervision?

A qualified technologist is immediately available to assist the student but does not have to be physically present in the examination room.

What does HIPAA protect?

The privacy and security of a patient's protected health information, including medical records and radiographic images.

Why must a radiologic technologist verify patient identity before an exam?

To make sure the correct procedure is performed on the correct patient and prevent medical errors.

What is verbal communication in radiography?

Spoken communication used to explain procedures, obtain information, give positioning instructions, and communicate with other healthcare professionals.

What is nonverbal communication?

Communication through facial expressions, eye contact, posture, gestures, touch, and other behaviors rather than spoken words.

Does MRI use ionizing radiation?

No. MRI uses a strong magnetic field and radiofrequency energy to create images.

What is one major advantage of MRI?

MRI provides excellent soft-tissue contrast and can produce images in multiple planes without ionizing radiation.

How does ultrasound create an image?

A transducer sends high-frequency sound waves into the body and receives returning echoes, which the system converts into an image.

What is Doppler ultrasound used for?

It evaluates the direction and movement of blood flow through vessels and the heart.

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radiologyq1final

Question	Answer
What is ionizing radiation?	Radiation with enough energy to remove electrons from atoms and create ions.
What does ALARA stand for?	As Low As Reasonably Achievable. It means keeping radiation exposure as low as practical while still obtaining a diagnostic image.
What are the three basic principles of radiation protection?	Time, distance, and shielding.
What is collimation?	Restricting the X-ray beam to the specific anatomy being examined, which reduces unnecessary patient exposure and scatter radiation.
What is the difference between Gy and Sv?	Gray (Gy) measures absorbed radiation dose, while sievert (Sv) considers the biological effect of radiation on tissue.
What is direct supervision?	A qualified technologist is physically present and directly observes or assists the student during the procedure.
What is indirect supervision?	A qualified technologist is immediately available to assist the student but does not have to be physically present in the examination room.
What does HIPAA protect?	The privacy and security of a patient's protected health information, including medical records and radiographic images.
Why must a radiologic technologist verify patient identity before an exam?	To make sure the correct procedure is performed on the correct patient and prevent medical errors.
What is verbal communication in radiography?	Spoken communication used to explain procedures, obtain information, give positioning instructions, and communicate with other healthcare professionals.
What is nonverbal communication?	Communication through facial expressions, eye contact, posture, gestures, touch, and other behaviors rather than spoken words.
Does MRI use ionizing radiation?	No. MRI uses a strong magnetic field and radiofrequency energy to create images.
What is one major advantage of MRI?	MRI provides excellent soft-tissue contrast and can produce images in multiple planes without ionizing radiation.
How does ultrasound create an image?	A transducer sends high-frequency sound waves into the body and receives returning echoes, which the system converts into an image.
What is Doppler ultrasound used for?	It evaluates the direction and movement of blood flow through vessels and the heart.

Created by: user-2046452

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