Factor effect on body temperature
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Transcript Factor effect on body temperature
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Definition:
There are four objective assessment data that
indicate how well body is functioning and very
sensitive to alteration in physiology.
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Times to assess vital sign:
1) On admission to health care agency to obtain
base line data.
2) When client has change in health status.
3) Before and after surgery.
4) Before and after administrat6ion of
medication.
5) Before and after any nursing intervention
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1)Body temperature:
Definition: the balance between the heat
production and heat lost from the body,
measured in heat unit called degree.
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* Fahrenheit scale uses 32F as the water
freeze point and 212F as boil point.
*centigrade scale uses 0 as the water
freeze and 100C as boil point.
Normal body temperature:
98 – 98.6 F
36.4 – 37.4 C
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Two type of body temperature:
Core temperature: is the temperature of
deep tissue of the body such as thorax,
abdominal cavity. it relatively constant.
Surface temperature:
is the temperature of skin, subcutaneous
tissue rise and fall in response to
environment.
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Factor effect on body heat production:
Basal metabolic rate: is rate of energy
utilization in the body required to maintain
essential activity (metabolism).
Metabolism:
the primary source of energy is
the sum of all the chemical process that
occurs in the body.
Muscle activity.
Thyroxin out put.
Epinephrine.
Fever.
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Way of heat loss:
Radiation: is transfer of heat from one
object to another object with out contact.
Conduction: is transfer of heat from one
molecules to another of lower
temperature.
Convection: dispersion of heat by air
current.
Evaporations: continuous evaporation of
the moisture from the respiratory tract.
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Temperature regulation:
Hypothalamus: a structure within the
brain that helps controls various metabolic
activities.
It acts as the center of temperature
regulation.
When sensor of hypothalamus detect
heat, they send signals intend to reduce
temperature
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Factor effect on body temperature:
Age
Circadian rhythm
Exercise
Hormones
Stress
Environment.
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Terms:
Pyrexia: body temperature above the usual
range (fever). (38 – 40).
Hyperpyrexia: very high temperature more
than 40 C.
Hypothermia : body temperature less than 35.
My be induced or accidental.
Note: the client who has a fever is referred to as
febrile, the one who has not called A febrile.
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Clinical sign of fever:
Increase heart rate
Increase respiratory rate
Shivering
Palled
Cyanotic nail beds
Increase thirst.
Loss of appetite.
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Assessment site:
Oral site: mouth, convenient, it is contraindicated for:
uncooperative client, children, unconscious, shivering
and prone to seizers.
Delay taking oral temperature at least 10min if client
been smoking, eating hot or cold food or drinks.
Rectal site: can be embarrassing for alert client,
inconvenient, improper placement, stool in rectum.
Auxiliary: are preferred site for infant, unconscious
patient but it takes long time about 5 min.
Tympanic: tympanic membrane suitable for children,
more reliable for core temperature.
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Type of thermometer:
Mercury glass thermometer.
Electronic thermometer.
Skin tape.
Tympanic thermometer.
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Four common types of fevers
Intermittent: the temperature alternate
regular interavel between period of fever.
Remittent: it is wide range of of
temperature fluctuation, all of which are
above normal.
Relapsing fever: is short febrile period
of a few days with period 1-2 days.
Constant fever always remain above
normal.
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2) Pulse:
Is the wave of blood created by
contraction of the ventricles of the heart.
Cardiac out put = Stroke volume * heart
rate.
Two type of pulse:
Peripheral pulse is pulse located in
peripheral of the body, foot, hand.
Apical pulse is centered pulse located
above the apex of the heart.
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Factor effect the pulse:
Age.
Exercise.
fever
medication
Hemorrhage.
Stress.
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Pulse site:
temporal
radial
carotid
apical
brachial
posterior tibial
Dorsal spedis pulse.
Popliteal
Femoral
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Pulse sites
Temporal: where the temporal artery
pass over the temporal bone.
Carotid: at the side of the neck where
carotid artery runs between the trachea
and sternoclidomastiod muscle.
Apical: at the apex of the heart.
Brachial: at the inner aspect of the
biceps tendon or medial antecubital fossa.
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Pulse sites
Femoral: where the femoral artery passes
along side of inguinal ligaments.
Radial: on the long radial bone, on thumb side
of the inner aspect of the wrist.
Popliteal: behind the knee.
Positerior tebial: behind the medial malleolus.
Dorsalis pedis: on the dorsum of the foot,
upper surface.
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Terms:
Tachycardia: when pulse increase more
than 100 bm.
Bradycardia: when pulse decrease less
than 60 bm.
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Respiration:
Definition: is act of breathing, the
normal respiratory rate is 16 – 20 bpm.
Two types of respiration:
External: the exchange of oxygen and
carbon dioxide between the alveoli of the
lung and blood.
Internal: is the exchange of the same
gas between blood and cell of the body
tissue
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The muscle that contribute in the
respiration:
Diaphragm muscle ( main muscle).
Intercostals muscle.
Sternoclidomastiod muscle.
Note:
In female, observe chest movement.
In male, observe abdominal movement.
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Terms:
Inhalation (inspiration): intake of air into lung.
Exhalation (expiration): breathing out or the
movement of gases from the lung in to atmosphere.
Breathing pattern:
1) Volume:
Hyperventilation: refer very deep and rapid
respiration.
Hypoventilation: refer to shallow respiration.
Eupnea: normal respiratory rate and depth.
Bradypnea: slow breathing.
Tachypnea: fast respiratory rate.
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Mechanism of respiration:
During inhalation: the diaphragm
contracts( flatten) and the ribs move up
wards and out ward and the sternum
move out ward.
Exhalation: the diaphragm relaxes, ribs
moves down ward and inwards the
sternum move in ward and decrease the
size of thorax.
Inspiration time 1 – 1.5 sec.
Expiration time 2 – 3 sec.
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Regulation of respiration:
Controlled by respiratory
center in the medulla
oblingata.
Chemoreceptor located
centrally in medulla and
peripheral in carotid and
aortic body.
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Factor influence of respiratory rate:
Exercise.
stress
Environmental factor.
Increase altitude.
Certain medication (narcotic)
Increased intracranial pressure.
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4) Blood pressure:
Definition: is measure of pressure
exerted by the blood as it flows through
the arteries.
Systolic blood pressure: the pressure
of the blood as result of contraction of the
ventricles.
Diastolic blood pressure: the pressure
when the ventricles are at rest
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The differences between the diastolic and
systolic pressure called pulse pressure.
The normal blood pressure reading:
systolic 100 – 140 mmhg and diastolic
60 – 90mmhg.
Example: (130/80), 130= systolic, 80 =
diastolic, 50 = pulse pressure.
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Determinant of blood pressure:
a) Cardiac out put (COP).
b) Peripheral resistance (PR).
Some factor effect on peripheral
resistance:
1) Size of artery.
2) Compliance of arteries.
3) Viscosity.
c) Blood volume.
d) Blood viscosity
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Factor effect on the blood pressure:
1) Age.
2) Exercise.
3) Stress.
4) Obesity.
5) Sex.
6) Medication.
7) disease process.
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Hypertension: blood pressure that is
persistent above the normal.
hypotension: the blood pressure is blow
normal range.
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Part of sphygmomanometer:
a) Cuff. b) Mercury meter. c) Tubes.
d) Bulp.
The recommended bladder size for blood
pressure measurement for adult:
13cm width, 24cm length, for children
8cm width, 13cm length.
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The correct way to measure your blood pressure is:
Do not use caffeine, tobacco, or alcohol for 30 minutes
before you measure.
Measure your blood pressure when you first wake up
and before dinner. (Unless your doctor tells you other
times.)
Before you measure your blood pressure, sit in a chair
with a back on it for 3-5 minutes, and do not talk. Use
the correct sized cuff for your arm
Put the cuff in the proper place on your arm by placing
the arrow or tubing on the inside of the elbow
Keep your arm at heart level while doing a blood
pressure measure
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