Flashcards in Chapter 29 - Vital Signs Deck (13)
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What are the factors that affect heat production?
1. Basal metabolic rate
2. Muscle activity
3. Thyroxine output
4. Epinephrine, norepinephrine, and sympathetic stimulation/stress response
5. Fever
1
True/False
Generally the younger the person, the higher the BMR (basal metabolic rate).
True
2
What ways is heat lost from the body?
- Radiation
- Conduction
- Convection
- Evaporation
3
Insensible heat loss accounts for about ______ of basal heat loss.
10%
4
The system that regulates body temperature has three main parts:
- Sensors in the periphery and in the core
- An integrator in the hypothalamus
- Effector system that adjusts the production and loss of heat
5
Factors that affect body temperature
1. Age
2. Diurnal variations (circadian rhythms)
3. Exercise
4. Hormones
5. Stress
6. Environment
6
Why are older people at risk for hypothermia?
- Inadequate diet
- Lack of activity
- Reduced thermoregulatory efficiency
(Also sensitive to extremes in environmental temp due to decreased thermoregulatory controls.)
8
The time for the point of highest body temperature is usually between ____ and _____ hours; the lowest point is between _____ and _____ hours.
1600 and 1800 hours (4 and 6 PM)
0400 and 0600 hours (4 and 6 AM)
9
True/False
Men usually experience more hormone fluctuations than women.
False
10
The normal range for body temperature in adults is considered to be between ____ and ____.
96.8F to 99.5F
11
There are two primary alterations in body temperature: ________ and _______.
Pyrexia and hypothermia
12
A body temperature above the usual range is called:
- Pyrexia
- Hyperthermia
- Fever
13
