Ch. 8 Diagnostic Tests & Procedures

Question 0

electroencephalogram

Answer 0

record of the minute electrical impulses of the brain

Question 1

electrodiagnostic procedures

Answer 1

evaluation of the nervous systems by recording electrical signals produced in the CNS & PNS

Question 2

evoked potentials

Answer 2

record of electrical potentials (waves) that are extracted from ongoing EEG activity to diagnose auditory, visual, and sensory pathway disorders; also used to monitor patients during surgery

Question 3

polysomnography

Answer 3

recording of various aspects of sleep to diagnose sleep disorders

Question 4

lumbar puncture (LP)

Answer 4

spinal tap; extraction of CSF from lumbar spine for diagnostic purposes

Question 5

magnetic resonance imaging (MRI)

Answer 5

non-ionizing imaging technique used to visualize soft tissues such as the brain and spinal cord

Question 6

magnetic resonance angiography (MRA)

Answer 6

MRI of blood vessels to detect pathologic conditions

Question 7

intracranial MRA

Answer 7

MRI of the head to visualize the circle of Willis

Question 8

extracranial MRA

Answer 8

MRI of the neck to visualize the carotid artery

Question 9

nuclear medicine imaging

Answer 9

radionuclide organ imaging

Question 10

single-photon emission computed tomography (SPECT) brain scan

Answer 10

scan combining nuclear medicine and CT to produce images of the brain after administration of radioactive isotopes

Question 11

positron-emission tomography (PET)

Answer 11

technique combining nuclear medicine and CT to produce images of the brain anatomy and corresponding physiology

Question 12

radiography

Answer 12

x-ray imaging

Question 13

cerebral angiogram

Answer 13

x-ray of the blood vessels of the brain after introducing a contrast medium

Question 14

computed tomography (CT) of the head

Answer 14

CT of the head to visualize abnormalities, such as tumors and malformations

Question 15

myelogram

Answer 15

x-ray of the spinal cord obtained after administering a contrast medium

Question 16

reflex testing

Answer 16

test performed to observe the body’s response to a stimulus

Question 17

deep tendon reflexes (DTR)

Answer 17

involuntary muscle contraction after percussion at a tendon, indicating function. Positive findings are rated 0-4

Question 18

Babinski sign or reflex

Answer 18

pathologic response to stimulation of the plantar surface of the foot; a positive sign is when the toes dorsiflex

Question 19

transcranial Doppler sonogram

Answer 19

image made by sending ultrasound beams through the skull to assess blood flow in intracranial vessels