NSG 170 Thermoregulation || 100% Verified Answers.
Hypothalamus role correct answers Thermoregulation is an aspect of homeostasis that balances
heat gain and heat loss; it is regulated by a circadian variation in the hypothalamic "set point";
body temp in the middle of a person's usually sleeping time will normally be lower, then begins
to rise with their normal waking time, and peaks (rises) again late in their usually activity period,
decreasing again around the person's usual bedtime; physiological adjustments to body temp are
controlled by the hypothalamus-often considered the thermostat center of the body
Shivering correct answers Muscles start to contract and relax, increasing respiration rate and
release of energy
-Helps heat up the body
Sweat correct answers perspiration process is explained by evaporation of moisture from the skin
surface
-this provides a significant source of heat reduction and normally accounts for 600 mL of water
loss per day
-in extreme heat, an individual can lose as much as 4 L of fluids in an hour; for this reason,
replacement of fluids and electrolytes is essential to prevent dehydration
Vasoconstriction (reduce heat loss) correct answers -in addition to heat production, the body
conserves heat through peripheral vasoconstriction
-this process shuts warm blood away from the superficial body tissues and skin surface and
increases muscle activity
-causes skin to feel cool and slows the cap refill
identify risk factors r/t altered thermoregulation correct answers
Populations at greatest risk for problems with thermoregulation are: correct answers -very young
persons
-very old persons
, -poor persons
-person living in very hot or cold climates
Individual risk factors: correct answers -Cognitive impairment
-Malnourishment
-Fluid intake
-Impaired mobility
-Environmental exposure
-Injury to CNS
Plan prevention strategies r/t complications of thermoregulation (external and internal) correct
answers
2 types of external correct answers passive
active
Passive external (spontaneous) rewarming correct answers Move pt to warm, dry place; remove
damp clothing; use radiation lights; place warm blankets on pt
Active external (surface) rewarming correct answers fluid or air-filled warming blankets, warm
water immersion
Internal (Active) correct answers -core rewarming
-heated, humidified oxygen
-warmed IV fluids
-peritoneal lavage with warmed fluids
-extracorporeal circulation with
(cardiopulmonary bypass, rapid fluid infuser, hemodialysis)
Hypothalamus role correct answers Thermoregulation is an aspect of homeostasis that balances
heat gain and heat loss; it is regulated by a circadian variation in the hypothalamic "set point";
body temp in the middle of a person's usually sleeping time will normally be lower, then begins
to rise with their normal waking time, and peaks (rises) again late in their usually activity period,
decreasing again around the person's usual bedtime; physiological adjustments to body temp are
controlled by the hypothalamus-often considered the thermostat center of the body
Shivering correct answers Muscles start to contract and relax, increasing respiration rate and
release of energy
-Helps heat up the body
Sweat correct answers perspiration process is explained by evaporation of moisture from the skin
surface
-this provides a significant source of heat reduction and normally accounts for 600 mL of water
loss per day
-in extreme heat, an individual can lose as much as 4 L of fluids in an hour; for this reason,
replacement of fluids and electrolytes is essential to prevent dehydration
Vasoconstriction (reduce heat loss) correct answers -in addition to heat production, the body
conserves heat through peripheral vasoconstriction
-this process shuts warm blood away from the superficial body tissues and skin surface and
increases muscle activity
-causes skin to feel cool and slows the cap refill
identify risk factors r/t altered thermoregulation correct answers
Populations at greatest risk for problems with thermoregulation are: correct answers -very young
persons
-very old persons
, -poor persons
-person living in very hot or cold climates
Individual risk factors: correct answers -Cognitive impairment
-Malnourishment
-Fluid intake
-Impaired mobility
-Environmental exposure
-Injury to CNS
Plan prevention strategies r/t complications of thermoregulation (external and internal) correct
answers
2 types of external correct answers passive
active
Passive external (spontaneous) rewarming correct answers Move pt to warm, dry place; remove
damp clothing; use radiation lights; place warm blankets on pt
Active external (surface) rewarming correct answers fluid or air-filled warming blankets, warm
water immersion
Internal (Active) correct answers -core rewarming
-heated, humidified oxygen
-warmed IV fluids
-peritoneal lavage with warmed fluids
-extracorporeal circulation with
(cardiopulmonary bypass, rapid fluid infuser, hemodialysis)
