Vital Signs Flashcards
Thermoregulation definition:
maintenance or regulation of core temperature in a living body within certain boundaries
Temperature controlled in the brain by ________.
Hypothalamus
Heat production causes:
Metabolic activity; muscle activity (exercise, shivering); thyroxine and epinephrine (stimulating effects on metabolic rate)
Heat loss causes:
Radiation, Convection, Evaporation, Conduction
Most of the body’s heat losses occurs _______.
At the skin surface
Factors affecting body temperature?
- Age and sex
- Circadian rhythms
- Physical activity
- Environment
- Oral intake
Radiation is the loss of body heat when a client is _________.
In close proximity to a cooler surface.
A nurse is preparing an in-service about factors affecting RR for a group of APs. Which of the following information should the nurse include?
A. Anxiety can decrease a clients RR
B. Opioid analgesics can increase a clients RR
C. Pain can decrease a clients RR
D. Fever can increase a clients RR
D. Fever can increase a clients RR
Definition of a afebrile?
Normal temperature- no fever
Pyrexia?
Definition of fever
Do older adults have higher or lower baseline body temperature?
Lower; 96.4-98.5 F
Hyperthermia differs from fever how?
The hypothalamic set point is not changed. In situations of extreme heat exposure or excessive heat production, the mechanisms that control body temperature are ineffective.
Fever is distinguished from hyperthermia how?
An increase in your body’s set point temperature
Physical effects of fever?
Increased pulse rate, increased respiration, loss of appetite, thirst, muscle aches, and fatigue
Physical effects of fever in older adults
Confusion and delirium