Exam #2 Class Flashcards
Factors to consider when measuring pulse
- rate
- rhythm
- quality/strength
- equality ( same pulse on the left and right side)
Normal adult pulse rate
60-100bpm
For how long you should count the pulse
- regular: 30s then X2
- irregular: 60s
Describe how to locate PMI
PMI: point of maximal impulse
Apex of the heart
- on the left
- between the 5th and 6th rib
- mid clavicules line - MCL
Pulse deficit
- When heart is too weak to send blood to peripheral arteries
- difference in rate between the apical pulse and radial pulse
- one person count apical / one counts radial pulse
Arrhythmia/dysthymia
Abnormal heart rhythm
// - // - //___/// —// ___ // -
Bradycardia (rate + factors that can affect_)
Slow pulse rate
- pulse rate < 60bpm
Factors
- athlete
- emotions
- extreme cold
- medication
- horizontal position - sleeping
Tachycardia (rate + factors that can affect)
Fats heart rate
- pulse rate > 100bpm
Factors
- exercice
- fever
- environment
- emotion
- pain
- medication
- hemorrhage
- lack of O2
What is blood pressure BP
Force created by blood pushing against the artery walls
- Normal adult range BP
90 - 139 systolic
———-
60-89 diastolic
BP hypertension
> 140 - 159 systolic
90 - 99 diastolic
Orthostatic hypotension + symptoms
- occurs when a normotensive person (a person with normal blood pressure) develops symptoms of low blood pressure when rising to an upright position.
Symptoms
- dizziness
- lightheaded
- fainting
Hypotension
< 90 systolic
< 60 diastolic
Major causes for changes in blood pressure measurements
- age: increase with age
- emotion/stress: pain, fear, anxiety (white coat syndrome)
-ethnicity: Asian, indigenous, African = higher BP - gender : minor variance
- daily variations: lower during sleep, higher throughout the day
- medications: cardiac meds, IV fluids, analgesics
- other: smoking, obesity, exercice, hemorrhage, dehydration
3 process of oxygenation
- VENTILATION : breathing
- breathing = expansion of the lungs or inspiration = active process
- contraction of the lungs or expiration = passive process - GAS EXCHANGE : O2 AND CO2
- O2 from lungs - blood - tissues - cells
- CO2 from blood - alveoli = exhaled
- gas exchange occurs ont the alveoli capillary by diffusion
Diffusion: movement of molecules from high concentration
to low concentration - TRANSPORT OF GASES
- for O2 to be delivered to body tissues it id dependant on an intact and functioning cardiovascular system
- heart and vessels (veins/artery) and sufficient blood flow
Hemoglobin
A protein composed of iron in the RED BLOD CELLS (RBC’S) blinds with O2 and releases it in tissues
Normal respirator rate
Normal: 10-20 B/MIN
Bradypnea
Respiratory rate: <10 B/MIN
Tachypnea
Respiratory rate: > 24 B/MIN