[Verse 1] The moment that you push the propofol through, Vasodilation opens up — heat scatters to the periphery too, Core-to-shell redistribution, first hour steep decline, One to two degrees of core temp lost before the patient's even mine. That first phase hits the hardest, peripheral vessels wide, The warm blood at the center hemorrhages to the outside. Then linear cooling follows, radiation, conduction slow, Until the plateau finds its floor — the thermostat below. [Chorus] Hipotermia — it creeps without a sound, Three phases pulling body temp to ground. Coagulopathy, infecção, shivering through the bone — Mantenha o calor, don't let the patient go cold alone. Redistributed, radiated, plateaued in a row — Mantenha o calor — protect the heat you know. [Verse 2] Neuraxial blocks the sympathetic chain along the spine, Peripheral vasodilation wide — the patient can't confine That metabolic furnace heat to where it needs to stay, Spinal or epidural, thermal defense is stripped away. And patients lose the shiver reflex when the local spreads, The thermoregulatory threshold plummets — cool the tissue beds. Obese patients, pediatric, elderly at the extremes, Surface-area to mass ratio ruptures all the seams. [Chorus] Hipotermia — it creeps without a sound, Three phases pulling body temp to ground. Coagulopathy, infecção, shivering through the bone — Mantenha o calor, don't let the patient go cold alone. Redistributed, radiated, plateaued in a row — Mantenha o calor — protect the heat you know. [Bridge] Below thirty-six — the clotting factors stutter, Platelet aggregation falters, wound edges mutter. Surgical site infection doubles, triples in the cold, Myocardial ischemia lurks when perfusion isn't bold. Opioids linger longer, neuromuscular blockade stays, Fentanyl accumulates inside the hypothermic haze. And shivering — that frigoric spasm — spikes the oxygen demand, Four-hundred percent above baseline — more than most hearts withstand. Frigoric: born of cold and trembling, the body's last command. [Verse 3] Forced-air warming blankets, prewarming thirty minutes prior, Fluid warmers on the IV line, raise the patient higher — wait — Warm the ambient temperature, especially for the small, Active warming strategies deployed before induction's call. Resistive polymer blankets, circulating water too, Heat-moisture exchangers on the circuit, every breath anew. Monitor the core — esophageal, nasopharyngeal, Bladder, rectal, tympanic — temperature is real. [Chorus] Hipotermia — it creeps without a sound, Three phases pulling body temp to ground. Coagulopathy, infecção, shivering through the bone — Mantenha o calor, don't let the patient go cold alone. Redistributed, radiated, plateaued in a row — Mantenha o calor — protect the heat you know. [Outro] Três fases — redistribute, radiate, plateau. Consequences stack like dominoes below. Warm before, warm during, monitor with care — Normothermia isn't optional — it's oxygen, it's there.
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