In the ICU, a student urgently asked Dr. Abhishek Shukla, the geriatrician: "Sir, BP nahi mil raha hai?" (Sir, blood pressure isn't recording!) He explained that this means severe hypotension—typically below 60/40 mmHg or MAP under 40 mmHg—where cuffs or arterial lines can't detect waveforms due to circulatory collapse. Core Implications Unrecordable BP signals shock states like hypovolemic, distributive (sepsis), cardiogenic, or obstructive, threatening organ perfusion. Act immediately to asses