In this short, I break down the five “shock” question patterns the USMLE loves to test across Step 1, Step 2, and Step 3—and I save the toughest one for last. The whole point is to stop memorizing random lists and start recognizing the stem: trauma + hypotension? Assume hemorrhage. Infection + shock? Don’t skip the first step. MI + JVD + crackles? Don’t drown the failing heart. JVD without pulmonary edema? Something is physically blocking flow. And if you see hives + wheeze minutes after a trigger, that’s the one you must treat immediately. Here’s the active-learning takeaway: match the shock type to the first move. In trauma, it’s hypovolemic shock until proven otherwise—start two large-bore IVs and crystalloid while you look for internal bleeding (chest, abdomen, pelvis, thighs). In septic shock, fluids come first; vasopressors like norepinephrine only come after adequate fluid resuscitation if they’re still hypotensive. In cardiogenic shock, the trap is giving fluids—what they need is inotropic support like dobutamine. Obstructive shock demands the specific emergency fix (pericardiocentesis, needle decompression, thrombolytics). And anaphylaxis? IM epinephrine in the lateral thigh—always first.