Learning activity 11 & 12 Flashcards
What is the normal body temperature range?
36-38 degrees C
Body Temperature =
Heat produced – heat lost
What is the center for controlling body temperature?
Hypothalamus
What are the core temperature sites?
Rectum Tympanic Membrane Esophagus Pulminary Artery Urinary Bladder
Factors that affect body temperature.
PHYSIOLOGICAL & BEHAVIORAL MECHANISMS,
BASAL METABOLIC RATE, PERIPHERAL VASODILATION,
LACK OF SWEAT GLANDS, DIAPHORESIS (PROFUSE SWEATING), FEVER,
EXTERNAL ENVIRONMENT
How do you convert celsius to farenheit?
1.8 * 37 (temp in C) +32 (number) you alwawys add
How do you convert farenheit to celsius?
98.6(temp in F) - 32 (number) you always subtract/ 1.8
Contraindications with rectal temperature.
Never use on someone with diarrhea, rectal surgery, rectal disorders, or bleeding tendencies.
Should not be used on newborns.
What position would you put a patient in for rectal temp?
Position left side in sims.
What things are to be considered when taking rectal temp?
•Requires special positioning, may be embarrassing (make sure the area is private)
•Impacted stool alters reading
•Risk of exposure to body fluids
•Lubrication is required
* Always wear gloves
* Explain rationale from a safety perspective
*Safety considerations
What are Tympanic membrane- disadvantages
- More variable with this device than other core temp devices
- Hearing aids must be removed cannot be used if surgery of the ear or tympanic membrane
- Readings are altered by cerumen impaction and otitis media
- Probe cover comes only in one size
- Does not accurately measure temp changes during and after exercise
- Positioning the device correctly is difficult in newborns, infants and children younger than 3 years old
- Inaccuracies result from incorrect positioning
- Readings are affected by ambient temperature devices such as incubators, radiant warmers, and fans
What are the Tympanic membrane- Advantages
- Easily accessible, minimal client repositioning required
- Obtained without disturbing or waking client
- Provides core reading, inasmuch as the eardrum is close to the hypothalamus
- Measurement is rapid (2 to 5 seconds)
- Unaffected by oral intake of foods fluids or smoking
- Can be used for tachypneic clients without affecting breathing
- Can be used for newborns to reduce handling of infants & heat los
What are the surface temperature sites?
Skin, Oral cavity, Axilla
What are the advantages in skin site tempature?
- Inexpensive
- provides continues reading
- safe
- noninvasive
What are the disadvantages in skin site tempature?
- lags behind other sites during temp changes
- diaphoresis can impair adhesion
- can be affected by environmental temperature
What is Pyrexia?
A TECHNICAL NAME FOR A FEVER
What is Hypothermia
A REDUCTION OF BODY TEMPERTAURE TO SLOW METABOLIC PROCESS
What is Hyperthermia
AN EXTERMLY HIGH FEVER
What is Febrile
PERTAINING TO FEVER
What is hyperpyrexia
WITH A TEMPERTURE OF 41 C or MORE
What is Afebrile
WITHOUT FEVER
What is pulse rate?
the number of pulsing sensations occuring in one minute
What indirectly evaluates the heart’s cardiac output?
Pulse rate, rhythm, & strength. (regular VS irregular)
What does peripheral pulse indicate?
The status of blood perfusion to the area.
What is the most commonly used site for pulse?
The radial artery
If the radial artery is weak or hard to find you?
Palpate the carotid artery.
What factors raise your pulse rate?
- emotional reasons
- caffine
- exercise
- alcohol
- certain medications
- shock (blood/volume loss)
- fever
What factors decrease your pulse?
- Valsalva Maneuver
- Certain medications
- beta blockers
- depressants
What is the purpose of measuring a pulse?
Measuring the pulse can give very important information about your health. Any change from normal heart rate can indicate a medical condition. Fast pulse may signal an infection or dehydration. In emergency situations, the pulse rate can help determine if the patient’s heart is pumping.
What are the two (2) most commonly used sites when measuring heart rate in adults?
Two most commonly used sites: wrist (radial) and chest (apical).
What is pulse deficit?
PULSE DEFICIT: the difference between the heart rate and the pulse rate in atrial fibrillation. It is checked by:
•One person measures apical pulse with stethoscope
•Second person measures pulse at radial site at same time
•Measure both pulses for 1 full minute
•Subtract radial pulse from apical pulse rate
•Difference is pulse deficit
State the rationale for assessing the following prior to taking a client’s pulse:
a) Emotional and activity level:
b) Colour and warmth if taking pedal pulse:
c) Facial pallor and cyanosis:
Xx
What is Tachycardia?
heart rate that exceeds normal range