Vital Signs Flashcards
What are vital signs?
They are a group of 4 to 6 most important signs that indicate the status of the body’s vital function.
- The normal ranges for a person’s vital signs vary with age, weight, gender, and overall health
What are the four primary vital signs?
1) Body Temperature
2) Blood pressure
3) Pulse (HR)
4) Breathing Rate ( RR)
- recorded using the LOINC internationally accepted standard coding system
Temperature
- gives an indication of core body temperature whihc is normally tightly controlled as it affects the rate of chemical reactions
- the main reaason for checking body temperature is to solicit any signs of systemic infection or inflammation in the presence of a fever or elevated significantly above the individuals’s normal temperature
(temp greater than 38.5 C / 101.3 F = fever)
Heart rate/ pulse (HR)
The pulse or heart rate is the rate at which the heart beats while pumping blood and is commonly taken from the radial artery of the wrist
- The pulse rate can also be measured by listening directly to the heartbeat using a stethoscope
What are the average heart rates for the different ages?
A newborn or infant: 130-150 beats per minute
- Toddler: 100-120 times per minute
- Older child’s: 60-100 beats per minute
- Adolescents: 80-100 beats per minute
- Adults’ pulse rate: 50-80 beats per minutes
Respiratory rate (RR)
The value of respiratory rate as an indicator of potential respiratory dysfunction has been investigated
- Respiratory rate is a clear indicator of acidotic states, as the main function of respiration is removal of CO2 leaving bicarbonate base in circulation
Blood Pressure ( BP)
the pressure of circulating blood on the walls of blood vessels
- usually expressed in terms of systolic pressure ( maximum during one heart beat) over diatolic pressure ( minimum in between two heart beats) and is measured in millimeters of mercury above the surrounding atmopheric pressure
- measured using a mercury manometer
- regulated by baroreceptors which act via the brain influence nervous and endocrine systems
Invasive Blood Pressure
- Arterial blood pressure is the most accurately measure invasively through an arterial line
What are the five Korotkoff sounds:
1 Phase I—The first appearance of faint, repetitive, clear tapping sounds which gradually increase in intensity for at least two consecutive beats is the systolic blood pressure.
2 Phase II—A brief period may follow during which the sounds soften and acquire a swishing quality.
3 Phase III—The return of sharper sounds, which become crisper to regain, or even exceed, the intensity of phase I sounds.
4 Phase IV—The distinct abrupt muffling of sounds, which become soft and blowing in quality.
5 Phase V—The point at which all sounds finally disappear completely is the diastolic pressure.
What are the 7 simple tips to get an accurate blood pressure reading?
1) Don’t have a conversation
2) support back
3) empty bladder first
4) keep legs uncrossed
5) support feet
6) support arm at heart level
7) put cuff on bare arm
Auscultary
Method uses a stethoscope and sphygmomanometer