USMLE High-Yield Questions on Instagram: "“They said it would fix his posture… not rearrange his brainstem.” 💀🦴 ⸻ 🧠 Step-Level Explanation (High-Yield) This question hinges on TIMING + TRIGGER + SYMPTOMS. Key red flags: • Recent neck manipulation • Sudden onset severe posterior (occipital) headache • Vertigo + nausea → posterior circulation involvement Chiropractic neck manipulation can cause intimal tearing of the vertebral artery, leading to: • Artery dissection • Thrombus formation • Poste

🚨 STEMI vs NSTEMI vs Unstable Angina — know this cold for Step 1 & 2! All three = Acute Coronary Syndromes (ACS) → caused by plaque rupture thrombus formation 🩸 ❤️ STEMI 🔹 Complete occlusion → transmural ischemia 🔹 ST elevation / new LBBB 🔹 ↑ Troponins CK-MB 🔹 Needs immediate reperfusion (PCI > fibrinolysis) 🩸 NSTEMI 🔹 Partial occlusion → subendocardial ischemia 🔹 ST depression / T-wave inversion 🔹 ↑ Troponins, but no ST elevation 🔹 Treat with antiplatelets anticoagulation → early PCI