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 primary advantage of alpha-stat blood gas management during hypothermic CPB?
Answer: Preserves cerebrovascular autoregulation and enzyme function
Alpha-stat management preserves cerebrovascular autoregulation and intracellular enzyme function by maintaining temperature-uncorrected pH values.
pH-stat blood gas management during hypothermia results in which primary cerebral effect?
Answer: Increased cerebral blood flow due to elevated CO2
pH-stat management adds CO2 to maintain pH 7.40 at actual body temperature, causing cerebral vasodilation and increased cerebral blood flow.
Which pH management strategy is preferred for neonates and infants undergoing DHCA?
Answer: pH-stat
pH-stat is preferred in neonates and infants because increased cerebral blood flow improves uniform brain cooling before circulatory arrest.
The 'afterdrop' phenomenon after CPB rewarming refers to:
Answer: Continued fall in core temperature after rewarming is stopped
Afterdrop is the continued decrease in core temperature after active rewarming stops, caused by cold blood returning from peripheral tissues.
During normothermic CPB, what core temperature range is targeted?
Answer: 35-37°C
Normothermic CPB targets core temperatures of 35-37°C to maintain near-physiologic metabolic conditions throughout the procedure.
To prevent neurological injury, the arterial blood outflow temperature during rewarming should not exceed:
Answer: 38°C
Arterial outflow temperature should be kept at or below 37-38°C during rewarming to prevent cerebral hyperthermia and thermal neurological injury.