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ALU 101 Chapter 1 Exam With Actual Questions And Verified Detailed Answers
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ALU 101 Chapter 1 Exam With Actual Questions And VerifiedDetailed Answers
X-ray - Answer Beam of radiation is emitted, scattered, and absorbed in differing
amounts by different tissues. Digital radiography is faster and lower dose of radiation.
2D images.
fluoroscopy - Answer Imaging tool that allows real time viewing of moving parts of body.
Ex. Barium through intestines. Valuable tool for surgery and used w/ contrast agents.
Contrast agents - Answer Allow better image of tubular or hollow structures.
Nuclear medicine - Answer Uses small amounts of short lived radioactive substance
formulated to be absorbed by target organ. Ex: radioactive iodine useful in thyroid.
ultrasonography - Answer high-frequency sound waves are directed at soft tissue and
reflected as "echoes" to produce an image on a monitor of an internal body structure
computed tomography (CT)-Answer a series of x-ray images are taken in multiple
views(esp cross section). Useful in brain, neck, abdominal, pelvic, lung. Tumor
involvement w/ surrounding tissues, size and location.
MRI (magnetic resonance imaging)-Answer a technique that uses a magnetic field to
create a computerized image of internal bodily structures. Preferred over CT when soft
tissue resolution is needed.
Positron Emission Tomography (PET)-Answer Abnormal cellular activity can be
measured. Its use clinically includes the evaluation of lung nodules, colorectal, esoph.,
head and neck cancers, lymphoma, and melanoma. It is also useful as an adjunct in
Alzheimers, epilepsy, and Parkinsons disease.
angiography-Answer a radiographic study of the blood vessels after the injection of a
, contrast medium. When the arteries are being visualized it is called an arteriogram,
when the veins are being visualized, it is called a venogram. CTA and MRA are less
invasive studies.
Endoscopy-Answer Invasive procedure using fiberoptic technology and powerful lens
that allows images to be transmitted through curved structures.
single photon emission computed tomography (SPECT)-Answer radiological technique
that integrates computed tomography (CT) and a radioactive material (tracer) injected
into the bloodstream to visualize blood flow to tissues and organs. ex. similar to PET,
brain imagery
lumbar puncture Anwer spinal tap; needle aspiration of spinal canal fluid in the lumbar
region
cisternography Anwer visualization of the subarachnoid space after introducing a
contrast medium
tilt table test Anwer -a cardiovascular test used to diagnose the cause of
syncope-unexplained fainting
-a person is brought into standing while HR and BP are monitored
Electroencephalogram (EEG) Anwer record of the electrical activity of the brain
Electromyography (EMG) A recording of the strength of muscle contraction due to
electrical stimulation evoked potentials The record of minute electrical potentials
(waves) that are extracted from ongoing EEG activity to diagnose disorders such as
auditory, visual, and sensory pathway disorders; also utilized to monitor the neurologic
function of patients during surgery nailfold microscopy Used to assess capillaries in
digits associated with various connective tissue diseases.
fluorescein angiography - Answer a radiographic study of the blood vessels in the retina
of the eye following the intravenous injection of a fluorescein dye as a contrast medium,
detect DM retinopathy
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