Radiology Test 1 2024/2025 Exam
Questions and Detailed Answers | Rated
A+
What is radiology used for? - 🧠ANSWER ✔✔to diagnose AND treat disease
visualized within the human body
What anatomical planes are used in radiology images? - 🧠ANSWER ✔✔coronal
plane
sagittal plane
Axial/transverse plane
Radiographic density (5 kinds) - 🧠ANSWER ✔✔degree of blackness on a film
Radiographic contrast - 🧠ANSWER ✔✔difference in densities on a film
Radiolucent - 🧠ANSWER ✔✔permitting the passage of radiant energy
ex.) lungs
Radiopaque - 🧠ANSWER ✔✔obstructing the passage of radiant energy
ex.) bones
Attenuation - 🧠ANSWER ✔✔degree to which x rays are prevented from reaching
the detector
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,What effects image quality? (5 things) - 🧠ANSWER ✔✔part thickness (won't get
as good of pics in bigger pt)
motion
scatter
magnification (want pt close to film)
distortion
Barium contrast is used for - 🧠ANSWER ✔✔swallow studies
examining upper GI tract and small bowel
never put barium contrast through: - 🧠ANSWER ✔✔IV or central line
nuclear medicine produces: - 🧠ANSWER ✔✔images that reflect biological
process (PHYSIOLOGY) that take place at cellular and subcellular level
do not use MRI on patients with: - 🧠ANSWER ✔✔metallic objects, welders,
pacemakers, O2 tanks, etc
MRI is about: - 🧠ANSWER ✔✔hydrogen
tissues that contain very little hydrogen (ex. cortical bone, flowing bone, an air-
filled lung), generate little or no MR signal and appear _______? - 🧠ANSWER
✔✔black on images produced
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619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
, tissues high in hydrogen (such as fat or cartilage) have _____ signal intensity and
appear _______? - 🧠ANSWER ✔✔high; white
when you order diagnostic imaging, how should you explain to the radiologist? -
🧠ANSWER ✔✔clearly communicate the reasons for the examination and the
diagnosis you expect
requests for diagnostic studies should contain _____ clinical information -
🧠ANSWER ✔✔pertinent
How safe is medical imaging? - 🧠ANSWER ✔✔safe and technology is helping
reduce dose
(T/F) ultrasound exams have never shown biologic effects - 🧠ANSWER ✔✔true
when should ultrasounds exams be done? - 🧠ANSWER ✔✔only for medical
indications
does MRI magnetic fields show biological tissue changes? - 🧠ANSWER ✔✔no
caution is need for MRI if patient has: - 🧠ANSWER ✔✔embedded metallic
objects
contrast agents routes of administration: - 🧠ANSWER ✔✔IV, oral, rectal,
inhalation
types of iodine (contrast agent) - 🧠ANSWER ✔✔ionic or nonionic
Page 3 of 21
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions and Detailed Answers | Rated
A+
What is radiology used for? - 🧠ANSWER ✔✔to diagnose AND treat disease
visualized within the human body
What anatomical planes are used in radiology images? - 🧠ANSWER ✔✔coronal
plane
sagittal plane
Axial/transverse plane
Radiographic density (5 kinds) - 🧠ANSWER ✔✔degree of blackness on a film
Radiographic contrast - 🧠ANSWER ✔✔difference in densities on a film
Radiolucent - 🧠ANSWER ✔✔permitting the passage of radiant energy
ex.) lungs
Radiopaque - 🧠ANSWER ✔✔obstructing the passage of radiant energy
ex.) bones
Attenuation - 🧠ANSWER ✔✔degree to which x rays are prevented from reaching
the detector
Page 1 of 21
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
,What effects image quality? (5 things) - 🧠ANSWER ✔✔part thickness (won't get
as good of pics in bigger pt)
motion
scatter
magnification (want pt close to film)
distortion
Barium contrast is used for - 🧠ANSWER ✔✔swallow studies
examining upper GI tract and small bowel
never put barium contrast through: - 🧠ANSWER ✔✔IV or central line
nuclear medicine produces: - 🧠ANSWER ✔✔images that reflect biological
process (PHYSIOLOGY) that take place at cellular and subcellular level
do not use MRI on patients with: - 🧠ANSWER ✔✔metallic objects, welders,
pacemakers, O2 tanks, etc
MRI is about: - 🧠ANSWER ✔✔hydrogen
tissues that contain very little hydrogen (ex. cortical bone, flowing bone, an air-
filled lung), generate little or no MR signal and appear _______? - 🧠ANSWER
✔✔black on images produced
Page 2 of 21
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
, tissues high in hydrogen (such as fat or cartilage) have _____ signal intensity and
appear _______? - 🧠ANSWER ✔✔high; white
when you order diagnostic imaging, how should you explain to the radiologist? -
🧠ANSWER ✔✔clearly communicate the reasons for the examination and the
diagnosis you expect
requests for diagnostic studies should contain _____ clinical information -
🧠ANSWER ✔✔pertinent
How safe is medical imaging? - 🧠ANSWER ✔✔safe and technology is helping
reduce dose
(T/F) ultrasound exams have never shown biologic effects - 🧠ANSWER ✔✔true
when should ultrasounds exams be done? - 🧠ANSWER ✔✔only for medical
indications
does MRI magnetic fields show biological tissue changes? - 🧠ANSWER ✔✔no
caution is need for MRI if patient has: - 🧠ANSWER ✔✔embedded metallic
objects
contrast agents routes of administration: - 🧠ANSWER ✔✔IV, oral, rectal,
inhalation
types of iodine (contrast agent) - 🧠ANSWER ✔✔ionic or nonionic
Page 3 of 21
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
