Quick answerMatch each test to its job: exclude hemorrhage, locate the occlusion, rule down a mimic, or assess bleeding risk.
Why this is correctReperfusion decisions combine time, deficit severity, imaging, and contraindications. No single normal value independently authorizes treatment.
Easy analogy or mental pictureThe stroke workup is a four-lane checkpoint: brain image, vessel image, mimic screen, and bleeding screen each answer a different question.
Memory hookPlain CT checks blood; angiography checks blockage.
NCLEX decision ruleInterpret diagnostic data by purpose and continue parallel stroke-system actions rather than waiting for every result sequentially.
Why the other choices are wrongAn M1 occlusion does not rule out hemorrhage, glucose does not locate a clot, and coagulation values do not show whether a large vessel is blocked.
References
12026 Guideline for the Early Management of Patients With Acute Ischemic StrokeRapid stroke recognition, thrombolysis, thrombectomy pathways, and early management