RADIOLOGY ACTUAL TEST QUESTIONS
WITH VERIFIED ANSWERS COMPLETE
EXAM REVIEW
●● Diagnostic radiology
Answer: the use of x-ray technology to determine the cause of a patient's
symptoms
●● interventional radiology
Answer: the use of radiographic imaging to guide a procedure such as a
biopsy/treat a disease
●● Radiology is defined by
Answer: It's modalities/types of imaging techniques
●● Conventional radiography modalities
Answer: Radiography (X-Ray)
• Fluoroscopy
• Conventional Angiography
• Mammography
●● Cross sectional modalities
,Answer: Conventional Tomography (CT or "CAT" scan)
• Ultrasound
• MRI (Magnetic Resonance Imaging)
●● Molecular/physiological imaging modality
Answer: Nuclear medicine
●● Conventional radiography uses ____. Examples?
Answer: Radiation to generate an image,
X-rays, conventional fluoroscopy, conventional angiography,
mammography
●● Why are cross sectionality modalities helpful
Answer: CT, US, MR produce cross sectional images of the body by
obtaining information about a 3D volume/slice of patient tissue to
produce a 2D image
- Basically, can get more in-depth(!) imaging by getting a 3D data-set
that can be manipulated into a 2D/3D image for your screen.
●● How does CT work
Answer: Uses Radiation
- Uses X-Rays passing
,through patient tissue
to get information and
mathematically
reconstruct a cross
sectional image
●● Ultrasound works by
Answer: DOESN'T use Radiation
- Turns electricity into sound
waves which it uses to transmit
into patient's tissue via a
transducer probe.
- Depending on the tissue
type/density, the sound bounces
back and can be interpreted by the
US machine to create an image.
●● MRI works by
Answer: - DOESN'T use Radiation
- Uses magnets to pass a
magnetic field through a
patient's tissue which
, generates an image.
- Has superior soft tissue
definition (contrast)
●● Nuclear medicine modalities
Answer: Used to be its own field
-Administers radioactive
tracers/pharmaceuticals into the
patient, and then the radiation is
viewed
- Radiotracers can mix/mimic
substances in the body (sugar,
blood, air, bile) so can see how
those substances are distributed
●● What radiology techniques use radiation
Answer: X-ray, CT, Fluoroscopy
●● Does each modality have different contrast agents
Answer: YES, all with their own advantage and disadvantage
●● If ur allergic to one contrast, ru allergic to another
WITH VERIFIED ANSWERS COMPLETE
EXAM REVIEW
●● Diagnostic radiology
Answer: the use of x-ray technology to determine the cause of a patient's
symptoms
●● interventional radiology
Answer: the use of radiographic imaging to guide a procedure such as a
biopsy/treat a disease
●● Radiology is defined by
Answer: It's modalities/types of imaging techniques
●● Conventional radiography modalities
Answer: Radiography (X-Ray)
• Fluoroscopy
• Conventional Angiography
• Mammography
●● Cross sectional modalities
,Answer: Conventional Tomography (CT or "CAT" scan)
• Ultrasound
• MRI (Magnetic Resonance Imaging)
●● Molecular/physiological imaging modality
Answer: Nuclear medicine
●● Conventional radiography uses ____. Examples?
Answer: Radiation to generate an image,
X-rays, conventional fluoroscopy, conventional angiography,
mammography
●● Why are cross sectionality modalities helpful
Answer: CT, US, MR produce cross sectional images of the body by
obtaining information about a 3D volume/slice of patient tissue to
produce a 2D image
- Basically, can get more in-depth(!) imaging by getting a 3D data-set
that can be manipulated into a 2D/3D image for your screen.
●● How does CT work
Answer: Uses Radiation
- Uses X-Rays passing
,through patient tissue
to get information and
mathematically
reconstruct a cross
sectional image
●● Ultrasound works by
Answer: DOESN'T use Radiation
- Turns electricity into sound
waves which it uses to transmit
into patient's tissue via a
transducer probe.
- Depending on the tissue
type/density, the sound bounces
back and can be interpreted by the
US machine to create an image.
●● MRI works by
Answer: - DOESN'T use Radiation
- Uses magnets to pass a
magnetic field through a
patient's tissue which
, generates an image.
- Has superior soft tissue
definition (contrast)
●● Nuclear medicine modalities
Answer: Used to be its own field
-Administers radioactive
tracers/pharmaceuticals into the
patient, and then the radiation is
viewed
- Radiotracers can mix/mimic
substances in the body (sugar,
blood, air, bile) so can see how
those substances are distributed
●● What radiology techniques use radiation
Answer: X-ray, CT, Fluoroscopy
●● Does each modality have different contrast agents
Answer: YES, all with their own advantage and disadvantage
●● If ur allergic to one contrast, ru allergic to another
