Measuring Vital Signs (VS) Flashcards
(150 cards)
an assessment of vital or critical physiological functions
vital signs (VS)
the degree of heat maintained by the body
body temperature
an adult’s normal internal temperature or (core temperature)
97-100 degrees F or
36.1-38.2 degrees C
the process of temperature regulation
thermoregulation
hairs standing on end
piloerection
the sum of all physical and chemical processes and changes that take place in the body
metabolism
the amount of energy required to maintain the body at rest
basal metabolic rate (BMR)
the metabolism of brown fat to product heat
nonshivering thermogenesis
is the loss of heat through electromagnetic waves emitting from surfaces that are warmer than the surrounding air
radiation
the transfer of heat through currents of air or water
convection
when water is converted to vapor and lost from the skin (as perspiration) or the mucous membranes (breath)
evaporation
water loss by evaporation
insensible loss
moisture in the air
humidity
the process whereby heat is transferred from a warm to a cool surface by direct contact
conduction
a cyclical repetition of certain physiological processes that occurs every 24 hours
circadian rhythm
fever
pyrexia
a person with a fever
febrile
a person without a fever
afebrile
a fever above 105.8 F or 41.0 C
hyperpyrexia [hyper (above)-pyrexia (fever)]
fever-producing substances
pyrogens
specialized white blood cells
phagocytes
substances that reset the hypothalamic thermostat at a higher temperature
prostaglandins
reset value
set point
the period when body temperature is rising but has not yet reached the new set point
in initial phase (febrile episode or onset)