N200 Quiz 1 Chapter 29 Flashcards
Vital signs are a quick and efficient way of (3)
- Monitoring a client’s condition
- Identifying problems
- Evaluating the client’s response to intervention.
When do we assess vital signs? (4)
- upon admission/entry baseline
- w/ any change in health status (ie “i feel dizzy or faint”)
- pre and post surgery; pre and post any nursing interventions
- ordered vital signs, whatever the minimum for facility or ward.
What are the 6 vital signs we assess?
- Temperature
- Pulse
- Respirations
- blood pressure
- oxygen saturation
- Pain
What are the 12 guidelines for measing Vital Signs?
- Delegation: The nurse caring for the patient is responsible for the vital signs. if you delegate you must review and evaluate results. Can’t delegate all vitals. Know what and to whom you can delegate.
- Proper functioning equipment (maintained)
- Equipment appropriate to the client Ex. don’t use child cuff on Adult
- What are the client’s normal ranges?
- Medical history and medications
- Environmental factors
- Systematic approach
- Frequency of measurement
- Indications for medication administration
- ANALYZE AND INTERPRET significant changes
- COMMUNICATE significant changes
- Educate the client and family about their vital signs (1st must assess level of knowledge before you teach so they don’t ignore you.)
If a patient smoked or drank a cold beverage prior to vital sign assessment, how long should you wait prior to performing vital checks?
at least 15 minutes
Body _____ = Heat _______- _____ lost
Temperature
Produced
heat
What keeps the body’s core temperature or temperature of deep tissues relatively constant?
Temperature-control mechanisms
Because surface temperatures fluctuatate, the acceptable temperature of human beings ranges from?
96.8 - 100.4 degrees F (36-38 degrees C)
Temperature control mechanisms of human beings maintain relatively ______ core temperatures. Core temp is _____ reliable than surface temperature.
constant
more
What 4 factors contribute to body temperature regulation?
- Neural and vascular control
- Heat production
- Heat loss
- Behavioral control
What controls the temperature setpoint?
Hypothalamus via:
- Vasodilation & Sweating (if temperature increased)
- Shivering & Vasoconstriction (if temperature decreased)
What happens with disease or trauma to the hypothalamus or spinal cord?
body’s ability to control body temperature is decreased.
How is body heat produced?
as a by-product of metabolism
______ ______ rate is heat produced by body at rest
Basal Metabolic Rate
Name 3 mechanisms besides BMR that contribute to heat production.
- Muscular activity
- Shivering
- Non-shivering Thermogenesis (neonates- brown fat)
What are 4 modes of heat loss?
- Radiation
- Conduction
- Convection
- Evaporation
What is Diaphoresis?
Diaphoresis- visual perspiration on forehead & upper thorax reduces body temperature
What is “Behavioral Control” with respect to body temperature regulation?
contributing to control of body temperature thru behavior. Depends on degree of temp extreme; persons comfort in environment; thought processes and ability to remove clothing
Name 5 factors that body temperature.
- Age
- Exercise
- Hormone Level
- Circadian Rhythms
- Stress Environment
Describe issues with the newborn and elderly adult and temperature control.
- newborns do not have fully develop hypothalamus so temps are erratic and they lose heat to environ
- elderly have less SQ fat, decreased sweat gland activity and decreased metabolism.
During exercise, increased carb and fat breakdown exercise ______ heat production
increases
Our biological rhythm is tied to the sleep/wake system (Circadian Rhythm). The Parasympathetic system (PNS) kicks in and BP and temp _______.
decrease
During a fever, heat loss is unable to keep pace with excess heat production. This results from alteration of hypothalamic set point caused by pyrogens that stimulate the immune system.
WBC production is ________, which _______ growth of bacteria; and _____ viral substances through production of ________.
stimulated
suppresses
fights
interferon
Heat stroke results in?
giddiness, confusion, delirium, excess thirst, nausea, muscle cramps, visual disturbances, incontinence and HOT DRY SKIN
The 3 stages of hypothermia are mild, moderate and severe. What temperature ranges are associated with each level?
Mild 34-36 C or 93.2-96.8 F
Moderate 30-33 C or 86 – 93.2 F
Severe < 30 C or <86 F
If the body is below 34 C heart/respiratory rate & BP drop. Shivering, loss of memory, depression and poor judgment can also indicate ______.
Hypothermia
Does body temp spike more with bacterial or viral infections?
bacterial
What is the 1st goal with hypothermia? What other interventions can you perform?
- prevent further heat loss
- gradually warm up the body with warm IV fluids, blankets, drink hot fluids (no caffeine or alcohol), cover head, use heating pads near head
If someone presented with a fever of 104 F and hot dry skin, what immediate diagnosis would you think of?
Heat stroke
What are interventions for hyperthermia?
- Replace fluids preferably orally (IV if necessary)
- gradually cool the body down. Cool bath, wraps on forehead
- give antipyretic.
- need to determine if bacterial source for fever so take blood cultures then figure out which antibiotic to use (assuming not viral infection).
What are 5 areas to perform temperature measurement?
- Tympanic Membrane
- Rectal
- Oral
- Axilla
- Skin
Does the anterior hypothalamus control hot or cold temperature deviations? posterior?
anterior: hot
posterior: cold
The ______ is the palpable bounding of the blood flow in the peripheral artery (Stroke volume). The number of beats occurring in 1 minute is your ______ ______.
pulse
pulse rate
Cardiac Output =
(Cardiac Output=HR x SV)
What is the normal volume of blood pumped in one minute?
5 Liters
Would you expect the pulse to be weaker or stronger in foot of the diabetic?
weaker (further from head)
The peripheral pulse is commonly measured via the radial and carotid arteries because they are easily _____.
palpated
Besides the radial and carotid arteries, what other areas could be used for the peripheral pulse?
Temporal Brachial Ulnar Femoral Popliteal Posterior tibial Dorsalis Pedis
The ______ ______ provides a more accurate assessment of heart rate.
Apical pulse
______ and _______ of a pulse reflects volume & pressure of blood ejected against arterial wall with each contraction & condition of vasculature leading to pulse site.
Strength and amplitude
When could a doppler be used to find pulse?
if pt has edema (pitting), doppler can pick up
What is the normal pulse rate for adults?
infants?
Pulse rate
Normal ranges 60-100 adults
infants: 120-160 infants
Name several factors that influence pulse rate.
increase: hyperthyroidism, caffeine, exercise decrease: Medications that cause vasodilation, Ca++, hypothermia
Pulse rhythm is described as _____ or _____.
regular
dysrythmia
Strengh and equality are measured on a scale of 1-4 and described as bounding, _____ or ____.
equal
absent