Alterations in body temperature Flashcards
a body temperature above the usual range is called
pyrexia, hyperthermia or fever
a very high fever is called
hyperpyrexia
the client who has a fever is referred to as
febrile
the one who does not have a fever
afebrile
what are the four common types of fever?
intermittent
remittent
relapsing
constant
the body temperature alternates at regular intervals between periods of fever and periods of normal and subnormal temperatures
intermittent fever
a wide range of temperature fluctuations occurs over a 24 hour period, all of which are above normal
remittent fever
short febrile periods of a few days are interspersed with periods of 1 or 2 days of normal temperature
relapsing fever
the body temperature fluctuates minimally but always remains normal
constant fever
a temperature that rises to fever level rapidly following a normal temperature and then returns to s normal within a few hours is called
fever spike
is a result of excessive heat and dehydration, include paleness, dizziness, nausea, vomiting, fainting a moderately increased temperature
heat exhaustion
usually have a temperature of 41.1°C (106°F) or higher, and may be delirious, unconscious or having seizures
heat stroke
during this interval the usual heat production responses that cause elevation of the body temperature occur: chills, feeling of coldness cold skin due to vasoconstriction and shivering. this is referred to as…
chill phase
when the core temperature reaches the new set point, the individual feels neither cold nor hot and no longer experiences chills
plateau phase
in this instance, the hypothalamus now attempts to lower the temperature, and the usual heat loss responses that cause the reduction of the body temp. occur: excessive sweating and hot, flushed skin due to sudden vasodilation . this is referred to as..
flush phase
The Body process is attempting to lower the core temp. to reduced or normal-set point temp.
flush or crisis phase
is a core body temperature below the lower limit of normal
hypothermia
three physiologic mechanisms of hypothermia
a. excessive heat loss
b. inadequate heat production to counteract heat loss
c. impaired hypothalamic thermoregulation
may be induced or accidental
hypothermia
is the deliberate lowering of the body temp. to decrease the need for oxygen by the body tissues such as during certain surgeries
induced hypothermia
can occur as a result of a. exposure to cold environment b. immersion in cold water c. lack of adequate clothing, shelter or heat
accidental hypothermia
an electronically controlled blanket that provides a specified temperature
hyperthermia blanket