Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthA patient experiencing an ischemic stroke receives tPA, but despite initial reperfusion, neurological deficits worsen. Which process is most likely contributing to this paradoxical decline?
A)Increased neuronal metabolic demand
B)Enhanced excitotoxicity via glutamate release
C)Decreased cerebral edema formation
D)Hemorrhagic transformation of the penumbra✓
💡 Explanation
Hemorrhagic transformation, where ischemic tissue bleeds after reperfusion, explains the worsened deficits because tPA, while dissolving the clot, can exacerbate bleeding into the damaged penumbra. This causes secondary injury, therefore choice D is correct rather than the others which represent potential, but less likely, consequences.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Human Body & Health →- A patient develops an allergic reaction after repeated exposure to a new medication. Which mechanism explains why subsequent exposures trigger a more severe response?
- A football player sustains a helmet-to-helmet collision; if the resulting rapid head acceleration induces diffuse axonal injury via shear strain, which recovery protocol will be most effective?
- If a patient's pancreas fails to produce sufficient bicarbonate during digestion, which consequence follows regarding fat absorption?
- During prolonged exertion in a hot environment, what causes heat stroke despite the activation of sweating and vasodilation?
- If a patient with chronic anemia receives a blood transfusion using blood stored for an extended period, which consequence follows regarding oxygen delivery?
- If a patient with a known bee sting allergy is stung, and epinephrine is unavailable, why does administering an H1 receptor antagonist (antihistamine) provide only limited relief?
