CCP Temperature Management & Hypothermia Flashcards
6 cards from real CCP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CCP Temperature Management & Hypothermia flashcards as text
What is the target nasopharyngeal temperature for deep hypothermic circulatory arrest (DHCA) in adults?
Answer: 15-18°C
DHCA typically targets nasopharyngeal temperatures of 15-18°C to provide adequate cerebral protection during circulatory arrest.
Which temperature monitoring site most accurately reflects brain temperature during CPB cooling?
Answer: Nasopharyngeal
Nasopharyngeal temperature closely approximates brain temperature during CPB due to its proximity to the internal carotid artery.
What is the maximum safe rate of rewarming on CPB to avoid cerebral hyperthermia?
Answer: 0.5°C per minute
Rewarming should not exceed 0.5°C per minute to prevent cerebral hyperthermia and associated neurological injury.
During hypothermic CPB, what happens to whole-body oxygen consumption (VO2)?
Answer: Decreases approximately 50% for every 10°C drop
VO2 decreases roughly 50% for every 10°C reduction in temperature, following the Q10 metabolic effect.
Moderate hypothermia during CPB is defined as which core temperature range?
Answer: 28-32°C
Moderate hypothermia is defined as core temperatures between 28-32°C during cardiopulmonary bypass.
Which complication is most associated with overly rapid rewarming from deep hypothermia?
Answer: Cerebral hyperthermia and neurological injury
Rapid rewarming causes cerebral hyperthermia where increased metabolic demand outpaces oxygen delivery, leading to neurological injury.