Free SCRN Exam Questions That Helps Candidates Pass

Comprehensive and Detailed Explanation:

The correct answer is A because paroxysmal atrial fibrillation promotes blood stasis inside the atria, favoring the generation of thrombin and fibrin-rich cardioembolic clots that can travel to the cerebral circulation. Dabigatran is a direct oral anticoagulant (DOAC) that specifically inhibits thrombin, offering superior protection against cardioembolic stroke compared to antiplatelet therapy. Option B is incorrect because DOACs do not alter lipid panels or dissolve plaque. Option C is incorrect because dabigatran does not lower blood pressure. Option D is incorrect because dabigatran targets the coagulation cascade rather than platelet aggregation pathways (which are inhibited by drugs like aspirin or clopidogrel). SCRN nurses educate patients on the precise mechanism of anticoagulants to foster lifelong compliance and safety.

Comprehensive and Detailed Explanation:

The correct answer is A because ideomotor apraxia is a cognitive-motor disorder characterized by the inability to plan and execute complex motor tasks upon verbal command or in imitation, even though muscle strength, tone, coordination, and comprehension remain intact. For example, a patient may be unable to demonstrate how to comb their hair or brush their teeth on command, yet may perform the action automatically when given the physical object. Option B describes left homonymous hemianopsia, a visual field defect. Option C describes sensory loss rather than motor planning deficits. Option D describes prosopagnosia, an impairment in face recognition. Recognizing apraxia helps post-acute nurses and therapists design structured, step-by-step cueing techniques that support patients in reclaiming autonomy in daily self-care routines.

Comprehensive and Detailed Explanation:

The correct answer is A because secondary prevention guidelines recommend initiating high-intensity statin therapy (such as atorvastatin 80 mg daily) for patients with ischemic stroke of atherosclerotic origin, regardless of baseline LDL cholesterol levels, to stabilize vulnerable plaques and reduce vascular inflammation. Option B is incorrect because diet alone is insufficient when LDL is markedly elevated and atherosclerotic risk factors are present. Option C is incorrect because niacin is no longer recommended as a primary lipid-lowering agent for stroke prevention due to lack of clinical benefit. Option D is incorrect because diabetes and prior stroke require lifelong secondary prevention therapy. SCRN nurses provide vital counseling on medication adherence and lipid management.

Comprehensive and Detailed Explanation:

The correct answer is A because Cushing's triad is a classic, late physiological sign of severely elevated intracranial pressure and impending brain herniation. It comprises bradycardia (slow heart rate), systolic hypertension with a widening pulse pressure (high systolic and lower diastolic range), and irregular respiratory patterns (such as Cheyne-Stokes or ataxic breathing). This compensatory reflex occurs when rising ICP compresses cerebral blood vessels, triggering cerebral ischemia that stimulates the vasomotor center. Option B is incorrect because tachycardia and hypotension indicate shock rather than increased ICP. Option C is incorrect because fever and narrow pulse pressure do not reflect the classical brain herniation triad. Option D is incorrect because hypotension is opposite to the hallmark hypertension seen in Cushing's response. SCRN nurses must identify these critical vitals shifts immediately to implement osmotic therapy, head-of-bed positioning, and surgical decompression protocols.

Comprehensive and Detailed Explanation:

The correct answer is A because post-acute stroke rehabilitation focuses on harnessing neuroplasticity—the brain's ability to reorganize and form new neural connections through repetitive, task-specific training. The overarching goal is to maximize functional independence, mobility, and self-care capacity, helping the survivor reintegrate into community life. Option B is incorrect because complete return to baseline strength is not always achievable, and recovery timelines vary greatly. Option C is incorrect because encouraging dependence leads to learned non-use and physical deconditioning. Option D is incorrect because avoiding activity prevents neuroplastic recovery. SCRN nurses collaborate closely with physical and occupational therapists to reinforce functional goals across the continuum of care.