2233 PET Physics Review Game - N. Paul

2233 PET Physics Review

START

Which of the following is a unit of radioactivity?

QUESTION 01

Gray (Gy)

Becquerel (Bq)

Sievert (Sv)

Rad

What is the most common isotope used in nuclear medicine?

CORRECT!

QUESTION 02

Carbon-14

Fluorine-18

Technetium-99m

Iodine-131

What type of radiation is emitted by Technetium-99m?

CORRECT!

QUESTION 03

Alpha particles

Neutrons

Beta particles

Gamma rays

What is the half-life of Fluorine-18?

CORRECT!

QUESTION 04

110 minutes

2 hours

8 days

6 hours

Which imaging modality uses a radiotracer that emits positrons?

CORRECT!

QUESTION 05

MRI

PET

SPECT

CT

What is the main purpose of using a gamma camera in nuclear medicine?

CORRECT!

QUESTION 06

To produce X-rays

To detect gamma radiation from radiotracers

To enhance MRI images

To measure alpha radiation

Which of the following is NOT a type of radioactive decay?

CORRECT!

QUESTION 07

Gamma decay

Delta decay

Alpha decay

Beta decay

What is the process called when a nucleus emits an alpha particle?

CORRECT!

QUESTION 08

Alpha radiation

Alpha decay

Alpha emission

Alpha fusion

What does PET stand for in medical imaging?

CORRECT!

QUESTION 09

Photon Emission Tomography

Positron Emission Tomography

Particle Emission Tomography

Proton Emission Tomography

Which of the following isotopes is commonly used for thyroid imaging?

CORRECT!

QUESTION 10

Technetium-99m

Iodine-123

Thallium-201

Gallium-67

In radioactive decay, what does the term "half-life" refer to?

CORRECT!

QUESTION 11

The time it takes for the radiation to decrease by half

The time it takes for half of the radioactive atoms to decay

The time it takes for the sample to completely decay

The time it takes for the radioactivity to become harmless

Which of the following is a characteristic of gamma radiation?

CORRECT!

QUESTION 12

It consists of protons

It is a type of electromagnetic radiation

It has a high mass

It is easily stopped by paper

What is a radiopharmaceutical?

CORRECT!

QUESTION 13

A drug used to treat radiation sickness

A radioactive substance used for diagnosis or therapy

A type of chemotherapy drug

A substance that protects against radiation

Which nuclear medicine imaging technique uses a rotating gamma camera to create 3D images?

CORRECT!

QUESTION 14

MRI

SPECT

CT

PET

What type of radiation is primarily used in external beam radiation therapy?

CORRECT!

QUESTION 15

Gamma rays

X-rays

Beta particles

Alpha particles

What does SPECT stand for in medical imaging?

CORRECT!

QUESTION 16

Spectral Photon Emission Computed Tomography

Single Photon Emission Computed Tomography

Single Proton Emission Computed Tomography

Specific Photon Emission Computed Tomography

Which of the following isotopes is commonly used in PET scans?

CORRECT!

QUESTION 17

Carbon-14

Fluorine-18

Technetium-99m

Iodine-131

In nuclear medicine, what is a "tracer"?

CORRECT!

QUESTION 18

A device that traces the location of tumors

A substance that marks the path of a disease

A tool used to measure radiation levels

A radioactive substance used to follow the movement of a compound in the body

What is the main difference between SPECT and PET imaging?

CORRECT!

QUESTION 19

SPECT uses x-rays, while PET uses gamma rays

SPECT uses gamma rays, while PET uses positrons

SPECT is used for bone imaging, while PET is used for brain imaging

SPECT produces 2D images, while PET produces 3D images

Which of the following radiopharmaceuticals is used to assess myocardial perfusion?

CORRECT!

QUESTION 20

Technetium-99m MDP

Thallium-201

Gallium-67

Iodine-123

What is the primary risk associated with exposure to ionizing radiation?

CORRECT!

QUESTION 21

Fatigue

Increased cancer risk

Hair loss

Skin irritation

Which organ is most sensitive to radiation exposure?

CORRECT!

QUESTION 22

Heart

Thyroid

Liver

Brain

Which of the following is a characteristic of gamma radiation?

CORRECT!

QUESTION 23

It is easily stopped by paper

It is a type of electromagnetic radiation

It consists of protons

It has a high mass

What is the function of a collimator in a gamma camera?

CORRECT!

QUESTION 24

To convert gamma rays into visible light

To focus the gamma rays onto the detector

To filter out unwanted radiation

To amplify the gamma signal

Which of the following best describes a "hot spot" on a nuclear medicine scan?

CORRECT!

QUESTION 25

An area of decreased radiotracer uptake

An area of increased radiotracer uptake

A region of uniform radiotracer distribution

An artifact caused by patient movement

What type of imaging is most commonly used for brain tumors?

CORRECT!

QUESTION 26

Mammography

PET

Ultrasound

X-ray

Which radiopharmaceutical is used for imaging bone metastases?

CORRECT!

QUESTION 27

Thallium-201

Technetium-99m MDP

Gallium-67

Iodine-131

What does "isotope" refer to in nuclear medicine?

CORRECT!

QUESTION 28

A substance that emits X-rays

Variants of an element with different numbers of neutrons

A type of radioactive decay

A device used to measure radiation

In beta decay, the atomic number (also known as the Z number) ...

CORRECT!

QUESTION 29

Decreases by one

Increases by one

Decreases by two

Remains the same

What is the primary advantage of using PET/CT over PET alone?

CORRECT!

QUESTION 30

Increased sensitivity to detect small lesions

Improved anatomical localization of metabolic activity

Lower radiation dose

Faster imaging time

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