D) Initiating an IV line for administration of contrast - CORRECT ANSWER>> B
Feedback:
Patient preparation for an MRI consists of removing all metal-containing objects prior to
the
examination. Withholding stimulants would not affect an MRI; this relates to an
electroencephalography
(EEG). Instructing the patient to void is patient preparation for a lumbar puncture.
Initiating an IV line
for administration of contrast would be done if the patient was having a CT scan with
contrast.
3. A gerontologic nurse planning the neurologic assessment of an older adult is
considering normal, age related changes. Of what phenomenon should the nurse be
aware?
A) Hyperactive deep tendon reflexes
B) Reduction in cerebral blood flow
C) Increased cerebral metabolism
D) Hypersensitivity to painful stimuli - CORRECT ANSWER>> B
Feedback:
Reduction in cerebral blood flow (CBF) is a change that occurs in the normal aging
process. Deep
tendon reflexes can be decreased or, in some cases, absent. Cerebral metabolism
decreases as the patient
advances in age. Reaction to painful stimuli may be decreased with age. Because pain
is an important
warning signal, caution must be used when hot or cold packs are used.
,4. The nurse has admitted a new patient to the unit. One of the patients admitting
orders
is for an
adrenergic medication. The nurse knows that this medication will have what effect on
the circulatory
system?
A) Thin, watery saliva
B) Increased heart rate
C) Decreased BP
D) Constricted bronchioles - CORRECT ANSWER>> B
Feedback:
The term adrenergic refers to the sympathetic nervous system. Sympathetic effects
include an increased
rate and force of the heartbeat. Cholinergic effects, which correspond to the
parasympathetic division of
the autonomic nervous system, include thin, watery saliva, decreased rate and force of
heartbeat, and
decreased BP.
5. A nurse is assessing reflexes in a patient with hyperactive reflexes. When the
patients foot is abruptly
dorsiflexed, it continues to beat two to three times before settling into a resting
position.
How would the
nurse document this finding?
A) Rigidity
B) Flaccidity
, C) Clonus
D) Ataxia - CORRECT ANSWER>> C
Feedback:
When reflexes are very hyperactive, a phenomenon called clonus may be elicited. If the
foot is abruptly
dorsiflexed, it may continue to beat two to three times before it settles into a position
of
rest. Rigidity is
an increase in muscle tone at rest characterized by increased resistance to passive
stretch. Flaccidity is
lack of muscle tone. Ataxia is the inability to coordinate muscle movements, resulting in
difficulty
walking, talking, and performing self-care activities.
6. The nurse is doing an initial assessment on a patient newly admitted to the unit with a
diagnosis of
cerebrovascular accident (CVA). The patient has difficulty copying a figure that the
nurse has drawn and
is diagnosed with visual-receptive aphasia. What brain region is primarily involved in
this deficit?
A) Temporal lobe
B) Parietal-occipital area
C) Inferior posterior frontal areas
D) Posterior frontal area - CORRECT ANSWER>> B
Feedback:
Difficulty copying a figure that the nurse has drawn would be considered
visual receptive aphasia, which involves the parietal-occipital area. Expressive aphasia,
the