NSG 550 - Diagnostic Reasoning
for Nurse Practitioners
Exam 3
Question:
Acetylcholine receptor antibody test
Answer:
Used to diagnose acquired myasthenia gravis and monitor pt response to
immunosuppressive therapy. MG is an autoimmune disease caused by
antibodies that block or destroy receptors for Ach. MG s/s=muscle weakness
and fatigue
Question:
Cholinesterase
Answer:
Identify patients with PChE deficiency before anesthesia or to identify those
who maybe have been exposed to phosphate poisoning. Also performed on
an amniotic fluid to identify neural tube defects.
,Question:
EEG
Answer:
electrodiagnostic: graphical record of brain wave activity obtained through
electrodes placed on the scalp and forehead. Evaluates for seizure, tumors,
infarcts, brain death (coma).
Question:
Caloric study
Answer:
electrodiagnostic: Used to evaluate function of CN VIII (vestibulocochlear).
Can indicate disease in temporal portion of the cerebrum. Part of a complete
neuro examination. Done by a neurologist. Differentiates abnormalities of
the vestibular system, brainstem, and cerebellum.
Question:
Electromyography (EMG)
Answer:
recording the strength of a muscle contraction as a result of electrical
stimulation. Can identify primary muscle diseases and differentiate them
from primary neurologic pathologic conditions.
, Question:
Nerve Conduction Study
Answer:
Performed to identify peripheral nerve injury in pts localized or diffuse
weakness, muscle atrophy, dysesthesia, paresthesia, and neurologic pain.
Differentiates primary peripheral nerve disease from muscular injury.
Question:
Evoked Potential Studies
Answer:
Indicated for patients who have a suspected sensory deficit but are unable to
indicate or are unreliable indicating recognition of a stimulus (infants,
comatose pts, noncommunicative pts, malingering pts). Used to monitor
natural progression or treatment of deteriorating neurologic diseases like
MS.
Question:
Lumbar puncture
Answer:
Fluid study: performed on pts who become increasingly demented and
confused. It is a test used to help diagnose Alzheimer's disease and other
forms of senile dementia.
for Nurse Practitioners
Exam 3
Question:
Acetylcholine receptor antibody test
Answer:
Used to diagnose acquired myasthenia gravis and monitor pt response to
immunosuppressive therapy. MG is an autoimmune disease caused by
antibodies that block or destroy receptors for Ach. MG s/s=muscle weakness
and fatigue
Question:
Cholinesterase
Answer:
Identify patients with PChE deficiency before anesthesia or to identify those
who maybe have been exposed to phosphate poisoning. Also performed on
an amniotic fluid to identify neural tube defects.
,Question:
EEG
Answer:
electrodiagnostic: graphical record of brain wave activity obtained through
electrodes placed on the scalp and forehead. Evaluates for seizure, tumors,
infarcts, brain death (coma).
Question:
Caloric study
Answer:
electrodiagnostic: Used to evaluate function of CN VIII (vestibulocochlear).
Can indicate disease in temporal portion of the cerebrum. Part of a complete
neuro examination. Done by a neurologist. Differentiates abnormalities of
the vestibular system, brainstem, and cerebellum.
Question:
Electromyography (EMG)
Answer:
recording the strength of a muscle contraction as a result of electrical
stimulation. Can identify primary muscle diseases and differentiate them
from primary neurologic pathologic conditions.
, Question:
Nerve Conduction Study
Answer:
Performed to identify peripheral nerve injury in pts localized or diffuse
weakness, muscle atrophy, dysesthesia, paresthesia, and neurologic pain.
Differentiates primary peripheral nerve disease from muscular injury.
Question:
Evoked Potential Studies
Answer:
Indicated for patients who have a suspected sensory deficit but are unable to
indicate or are unreliable indicating recognition of a stimulus (infants,
comatose pts, noncommunicative pts, malingering pts). Used to monitor
natural progression or treatment of deteriorating neurologic diseases like
MS.
Question:
Lumbar puncture
Answer:
Fluid study: performed on pts who become increasingly demented and
confused. It is a test used to help diagnose Alzheimer's disease and other
forms of senile dementia.
