Hypothermia pathophysiology — Flashcards

Flashcard 1: The end of rapid ventricular ejection corresponds with the onset of the _____ wave on ECG

Answer: T

Flashcard 2: What changes in potassium levels (hyper- or hypokalemia) can induce arrhythmias?_____

Answer: Both hyper- and hypokalemia

Flashcard 3: The effects of the autonomic nervous system on conduction velocity are called _____ effects

Answer: dromotropic

Flashcard 4: Exposure to cold temperatures causes increased activation of _____ hormone

Answer: thyroid

Flashcard 5: The _____ on ECG is the time from the initial depolarization of the atria to the initial depolarization of the ventricles

Answer: PR interval

Flashcard 6: Hypothalamic center responsible for thermoregulation against HEATING:

Answer: Anterior hypothalamus (Preoptic area) :: center for cooling?

Extra: The anterior hypothalamus/preoptic area (AH/POA) handles heat dissipation (cooling), while the posterior hypothalamus handles heat conservation (heating). Remember: A/C = Anterior Cooling.

Flashcard 7: Hypothalamic center for heat dissipation (cooling)

Answer: Anterior hypothalamus (Preoptic area)

Extra: Mnemonic: Anterior = Cooling (A/C) Posterior = Heating (P/H)

Flashcard 8: What is the effect of the cytokines released by activated macrophages?

Answer: fever, hypotension