ATI RN
ATI n269 Med Surg Exam 1 Questions
Question 1 of 5
If blood flow to the brain is interrupted, how quickly does cellular death occur?
Correct Answer: B
Rationale: Brain cells die within 2 minutes of interrupted blood flow, necessitating rapid intervention in stroke or similar events.
Question 2 of 5
A nurse is taking care of a client who has sustained a neurologic injury with increased intracranial pressure and decreased cerebral perfusion. Which of the following will keep cerebral perfusion pressure constant?
Correct Answer: A
Rationale: Cerebral blood vessel constriction and dilation maintain cerebral perfusion pressure despite BP changes. Other options have indirect or no impact.
Question 3 of 5
Which statement is accurate about the recommendations for BP management after an ischemic stroke?
Correct Answer: D
Rationale: BP above 220/120 mm Hg requires antihypertensive therapy post-ischemic stroke to prevent complications. Fibrinolytics need BP below 180/105 mm Hg, and lower BP is not protective.
Question 4 of 5
Which initial clinical manifestation would a patient report with a retinal detachment?
Correct Answer: A
Rationale: Flashes of light and floaters are early signs of retinal detachment as the retina pulls away from underlying tissue. Pain, glare, and redness are associated with other conditions like cataracts or conjunctivitis.
Question 5 of 5
A nurse in an emergency department is caring for a client who had a seizure and became unresponsive after stating she had a sudden, severe headache and vomiting. The client's vital signs are as follows: blood pressure of 198/110 mm Hg, pulse of 82/min, respirations of 24/min, and a temperature of 38.2° C (100.8° F). Which of the following neurologic disorders should the nurse suspect?
Correct Answer: C
Rationale: Hemorrhagic stroke presents with sudden severe headache, vomiting, seizures, and high BP, as seen here. Thrombotic and embolic strokes have gradual or sudden onset without these specific signs, and TIAs are transient.