Question 1

Negative contrast agents

Accepted Answer

A) appear white on images. 
B) have low atomic numbers. 
C) provide high x-ray beam attenuation and absorption. 
D) are materials such as bone and metal. 
A) appear white on images. 
B) have low atomic numbers. 
C) provide high x-ray beam attenuation and absorption. 
D) are materials such as bone and metal.

Question 2

When using any type of contrast agent for a radiographic examination,

Accepted Answer

A) the patient should have the final choice on the type of contrast used. 
B) a thorough medical history must be taken by the imaging professional. 
C) the cost of the contrast agent is not a consideration. 
D) anaphylactic reactions are rare and of little concern. 
A) the patient should have the final choice on the type of contrast used. 
B) a thorough medical history must be taken by the imaging professional. 
C) the cost of the contrast agent is not a consideration. 
D) anaphylactic reactions are rare and of little concern.

Question 3

Generally speaking,radiographic images are the result of x-ray photons being absorbed to varying degrees based on tissue density and thickness.There are five radiographic densities seen on radiographs: air or gas,water,fat,mineral,and metal.The lowest subject contrast between these five densities is between

Accepted Answer

A) bone and air. 
B) water and mineral. 
C) water and fat. 
D) metal and air. 
A) bone and air. 
B) water and mineral. 
C) water and fat. 
D) metal and air.

Question 4

When a nonionic contrast agent is injected into an artery such as the carotid,visualization of the artery occurs because

Accepted Answer

A) blood in the artery chemically changes into iodine. 
B) iodine in the contrast agent mixes with blood and makes the artery radiopaque. 
C) the contrast medium turns the vessel radiolucent. 
D) the contrast agent changes into a radiopharmaceutical. 
A) blood in the artery chemically changes into iodine. 
B) iodine in the contrast agent mixes with blood and makes the artery radiopaque. 
C) the contrast medium turns the vessel radiolucent. 
D) the contrast agent changes into a radiopharmaceutical.

Question 5

When working with a radiopharmaceutical,the nuclear medicine professional must be aware of

Accepted Answer

A) the half-life of the isotope. 
B) any isotope spills or leaks. 
C) contamination of isotope that yields image artifacts. 
D) all of the above. 
A) the half-life of the isotope. 
B) any isotope spills or leaks. 
C) contamination of isotope that yields image artifacts. 
D) all of the above.

Question 6

Contrast agents can be generally classified as

Accepted Answer

A) ionic and nonionic. 
B) metallic and nonmetallic. 
C) positive and negative. 
D) aqueous and lipid based. 
A) ionic and nonionic. 
B) metallic and nonmetallic. 
C) positive and negative. 
D) aqueous and lipid based.

Question 7

For select examinations,air (negative contrast)and radiopaque contrast are used as a pair to outline mucosal linings,joint interspaces,and passageways.These examinations are considered

Accepted Answer

A) double-contrast studies. 
B) extremely dangerous and rarely done. 
C) single-contrast examinations. 
D) low-contrast studies. 
A) double-contrast studies. 
B) extremely dangerous and rarely done. 
C) single-contrast examinations. 
D) low-contrast studies.

Negative contrast agents

When using any type of contrast agent for a radiographic examination,

When a nonionic contrast agent is injected into an artery such as the carotid,visualization of the artery occurs because

When working with a radiopharmaceutical,the nuclear medicine professional must be aware of

Contrast agents can be generally classified as

For select examinations,air (negative contrast)and radiopaque contrast are used as a pair to outline mucosal linings,joint interspaces,and passageways.These examinations are considered

Introduction to Imaging and Radiologic Sciences

Professional Organizations

Educational Survival Skills

Critical-Thinking and Problem-Solving Strategies

Introduction to Clinical Education

Radiology Administration

Radiographic Imaging

Radiographic and Fluoroscopic Equipment

Basic Radiation Protection and Radiobiology

Human Diversity

Patient Interactions

History Taking

Safe Patient Movement and Handling Techniques

Immobilization Techniques

Vital Signs, Oxygen, Chest Tubes, and Lines

Basic Cardiac Monitoring: The Electrocardiogram

Infection Control

Aseptic Techniques

Nonaseptic Techniques

Medical Emergencies

Pharmacology

Principles of Drug Administration

Professional Ethics

Health Records and Health Information Management

Medical Law

Filters

Exam 23: Contrast Media and Introduction to Radiopharmaceuticals

Negative contrast agents

When using any type of contrast agent for a radiographic examination,

When a nonionic contrast agent is injected into an artery such as the carotid,visualization of the artery occurs because

When working with a radiopharmaceutical,the nuclear medicine professional must be aware of

Contrast agents can be generally classified as

For select examinations,air (negative contrast)and radiopaque contrast are used as a pair to outline mucosal linings,joint interspaces,and passageways.These examinations are considered

Introduction to Imaging and Radiologic Sciences

Professional Organizations

Educational Survival Skills

Critical-Thinking and Problem-Solving Strategies

Introduction to Clinical Education

Radiology Administration

Radiographic Imaging

Radiographic and Fluoroscopic Equipment

Basic Radiation Protection and Radiobiology

Human Diversity

Patient Interactions

History Taking

Safe Patient Movement and Handling Techniques

Immobilization Techniques

Vital Signs, Oxygen, Chest Tubes, and Lines

Basic Cardiac Monitoring: The Electrocardiogram

Infection Control

Aseptic Techniques

Nonaseptic Techniques

Medical Emergencies

Pharmacology

Principles of Drug Administration

Professional Ethics

Health Records and Health Information Management

Medical Law

Filters