thermoregulation ppt
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each of the black spaces below before clicking
on it to display the answer.
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| show | Maintenance of stable core temperature
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| show | Hot temperature
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| Vasoconstriction, shivering, piloerection and curling up are a response to what? | show 🗑
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| show | Shivering Thermogenesis
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| show | The SNS- it targets the BAT (brown adipose tissue) and skeletal muscle
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| show | Skeletal tissues
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| show | BAT (brown adipose tissue)
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| what are the mechanisms of heat loss? | show 🗑
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| show | Radiation
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| show | Humidification, covering exposed skin, and using warm preps
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| show | Respiratory process
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| Which mechanism is heat lost through direct contact with cooler objects? | show 🗑
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| show | Since it's direct heat loss, put things under the pt to protect from cold OR table.(MB slide also says increase ambient temperature, forced warm air, warm solutions)
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| show | Water: therefore warm fluids would act faster than warm air on a pt
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| Afferent tempreture sensors relate to which system Central or Peripheral? | show 🗑
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| show | Krauses end bulb : Encapsulated receptor located in connective tissue. Range of stimulation is 15 - 25 degrees Celcius. Anything below these temps are active pain receptors
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| show | Ruffinis corpuscle: encapsulated receptor located in the subcutaneous tissue. range of stimulation 25-45 degrees celcius
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| show | Cold
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| show | Warm
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| Where do the earliest warning signs of external temp changes come from? | show 🗑
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| show | Once the skin reaches maximum variability.
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| show | Neurologic and endocrine
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| show | SNS
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| Skeletal muscle shivering is stimulated by direct motor response initiated by what? | show 🗑
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| show | Cutaneouos vasodialation
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| Heat transfer from blood to tissues is what mechanism? | show 🗑
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| show | evaporation
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| show | hypothermia
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| show | Initally it increases and then decreases
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| show | the body not being able to counteract heat loss
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| show | the body become poikilothermic
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| show | increased HR, BP, and CO
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| A body temp of <31 degress C would lead to what? | show 🗑
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| show | sinus bradicardia and v-fib very likely
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| show | risk of v-fib very high
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| A body temp of < 20 degrees C would lead to what? | show 🗑
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| show | 7%
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| MAC decreases what percentage for each degrees C drop? | show 🗑
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| During hypothermia what happens to uring output? | show 🗑
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| Maximum shivering happens at what temperatures? | show 🗑
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| show | increases HCT d/t rise in plasma volume and loss of fluid with diuresis, hyperglycemia, and impaired coagulation d/t thrombocytopenia
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| What are contributors to intra-operative hypothermia. | show 🗑
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| show | infants, they can lose up to 4 times more heat than adults
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| show | they have a thin sub cutaneous layer of insulation and also due to large ventilatory minute volume
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| True or False: Aging decreases the ability to compensate for heat loss. | show 🗑
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| What is the best temperature that is not a core temperature measurment? | show 🗑
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| show | 10 -15 min for the axillary artery to equilibrate
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| show | PA catheter, mixed venous blood, but core temp can be effected by CT surgery
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| What are active warming methods we utilize? | show 🗑
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| show | heated humidifiers, gastric lavage, peritoneal irrigation, fluid warmers (can heat to 42 degrees C with out causing hemolysis)
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| show | ambient temperature, insulation foam under bony prominences (insulation) and HME's
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Created by:
chrisysue7
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