N4 - test - Brain Attack

http://www.nursingcenter.com/prodev/ce_article.asp?tid=525455
Answers in comments

1.
Thrombotic strokes may develop as a result of
a. chronic hypertension.
b. long-term use of aspirin.
c. head trauma.
d. acute renal failure.

2.
Patients at risk for embolic strokes include those who have
a. deep vein thrombosis.
b. uncontrolled hypertension.
c. diabetes mellitus.
d. atrial fibrillation.

3.
A hemorrhagic stroke may develop as a result of
a. a cerebral angioplasty.
b. diabetes mellitus.
c. elevated cholesterol.
d. cardiac dysrhythmias.

4.
The carotid arteries provide what percentage of the blood supply to the brain?
a. 40%
b. 60%
c. 80%
d. 100%

5.
The middle cerebral arteries provide blood flow to which area of the brain?
a. medial surface of the parietal lobes
b. lateral surface of the cerebral hemispheres
c. inferior surface of the occipital lobes
d. posterior surface of the temporal lobe

6.
Which statement is true about the blood supply in the brain?
a. The internal carotid artery provides blood to the posterior regions of the brain.
b. The purpose of autoregulation is to maintain adequate oxygenation to the brain.
c. The vertebral-basilar arteries supply 60% of the blood that reaches the Circle of Willis.
d. Ischemia may develop if the systolic blood pressure is less than 70 mm Hg.

7.
One function of the cerebrum is to
a. integrate sensory input.
b. maintain balance.
c. control wakefulness.
d. regulate blood pressure.

8.
A patient who has had a right cerebral vascular accident may have
a. a gaze that's prominent to the left.
b. expressive aphasia.
c. a loss of the visual field in both eyes.
d. neglect.

9.
A patient who has had a left cerebral vascular accident may have
a. a loss of the left visual field.
b. asymmetry of the facial muscles on the left side.
c. mixed aphasia.
d. a gaze that's prominent to the right.

10.
Cerebral vascular accidents in the thalamic area produce
a. nausea.
b. abnormal eye movements.
c. tinnitus.
d. sensory alterations.

11.
Transient ischemic attacks
a. usually last 48 hours.
b. may result in residual disabilities.
c. lead to the development of strokes 50% of the time.
d. are a temporary disruption in cerebral blood flow.

12.
Which of the following diagnostic tests is used to determine the exact location of a brain injury?
a. CT scan
b. MRI
c. carotid Doppler
d. EEG

13.
Which statement is true regarding the nursing care of patients who receive t-PA?
a. Additional invasive procedures may be performed 2 hours after administration.
b. Vital signs should be taken q shift.
c. Frequent neurological assessments must be carried out.
d. The entire dose should be administered as a bolus.

14.
T-PA is indicated for
a. mild neurologic deficits.
b. sensory loss alone.
c. trace weakness.
d. thrombotic stroke.

15.
When is it appropriate to use anticoagulants in a patient who has had a stroke?
a. as an adjuvant therapy to t-PA
b. if the stroke is due to a subdural hematoma
c. if the patient has had an ischemic stroke and has atrial fibrillation
d. if a history of hypertension is noted