vitals Flashcards
When do we check for vitals ?
On admission At beginning of each shift Before and after procedure or treatment Any time patient’s condition changes Based on protocol or physician’s order As often as necessary for patient safety “Routine vitals” are about every 4 to 6 h (or as per protocol)
4 main vital signs
RR
BP
Pulse
Temperature
temperature
Adult Normal = 37 ℃
Regulated by the hypothalamus and is a balance of heat production and loss.
Affects metabolic rate
could be measured orally, axillary, rectal and ear
fever
Elevation of temperature (febrile)
From normal activities (exercise) = hyperthermia
From disease (infection) = fever
Body temperature of >38.9 ℃ (102°F) usually indicates infection
Not all infections result in fever
Immunocompromised patients may not be able to generate fever despite infection
hyperthermia
increase in metabolic rate
increase in 02 consumption and decrease in CO2 production
increase in RR and HR
Hypothermia
decreases in metabolic rate
decrease in 02 consumption and CO2 production
decrease in RR and HR
body tries to maintain itself by shivering and peripheral vasoconstriction to generate heat.
slow and shallow breathing
metabolic effects
increases temperature
O2 consumption and CO2 production increase 10% for each 1°C elevation in body temperature
Patients with limited respiratory function may develop respiratory failure in response to fever
RR (respiratory rate)
rr>20 is called tachypnea
rr<12 is called bradypnea
asses pattern and depth
pattern- paradoxical chest movement or how deep and shallow their breath are
apnea
absence of spontaneous ventilation
eupnea
normal breathing (rate and depth are both normal)
bradypnea
less than normal rate of breathing
tachypnea
rapid rate of breathing
hypopnea
decreased depth of breathing (small tidal volume)
hyperpnea
increased depth of breathing with or without an increased rate.
trends in the vital signs
Isolated measurement provides limited information
Normal VS for a patient depend on:
Age
Presence of chronic disease
Treatment protocols
Trend = baseline + measurements over time
Multiple-day graph