Free CNRN Exam Questions That Helps Candidates Pass

Comprehensive and Detailed Explanation:

A non-contrast head CT is the first diagnostic study performed in suspected acute stroke because it rapidly differentiates ischemic from hemorrhagic stroke. This distinction determines eligibility for thrombolytic therapy. Aspirin should not be administered until hemorrhage has been excluded. MRI is useful but should not delay time-sensitive treatment. Oral intake is avoided until swallowing has been evaluated to reduce aspiration risk.

Comprehensive and Detailed Explanation:

Right hemisphere strokes commonly result in left-sided neglect, spatial-perceptual deficits, impulsivity, and poor judgment. Patients may ignore the left side of their body or environment. Aphasia is typically associated with left hemisphere damage in most individuals. Hearing lossand anosmia are not primary features of right hemispheric stroke. Recognition of neglect is essential for patient safety and rehabilitation planning.

Comprehensive and Detailed Explanation:

Bradycardia with widened pulse pressure is part of Cushing’s triad, a late and ominous sign of increased intracranial pressure. It reflects brainstem compression and impending herniation. Tachycardia and hypotension are more typical of hypovolemic shock. Fever and chills suggest infection, while bowel sounds are unrelated to intracranial pressure changes. Recognition of Cushing’s triad requires immediate escalation of care.

Comprehensive and Detailed Explanation:

A sudden severe headache accompanied by vomiting following thrombolytic therapy raises concern for intracranial hemorrhage, one of the most serious complications of fibrinolytic treatment. Immediate neurological assessment and emergent brain imaging are required. Mild nausea and fatigue may occur after treatment and are less concerning. A blood pressure of 118/70 mmHg is within an acceptable range for many post-thrombolytic patients.

Comprehensive and Detailed Explanation:

The left middle cerebral artery supplies areas responsible for language and motor control of the right side of the body. Damage results in right-sided weakness and aphasia. The posterior cerebral artery affects vision, the cerebellar artery affects coordination, and basilar artery strokes typically involve brainstem functions with more severe systemic neurological deficits.