Physical Exam: Cardiovascular System Flashcards
Grading scale for peripheral pulses
0 absent, not palpable 1+ pulse diminished, barely perceptible 2+ easily palpable, normal 3+ full pulse, icn strength 4+ bounding pulse
Apical pulse or point of maximal impulse
pt is supine
palpate at 5th interspace, midclavicular vertical line
(apex of heart)
Other pulses
Radial Carotid Brachial Femoral Popliteal Pedal
Normal HR - adult and teen
60-100
40-60 if aerobically trained
Normal HR - child
60-140
Normal HR - newborn
avg is 127
90-164 is range
Tachycardia =
Bradycardia =
over 100
less than 60
Postural techycardia syndrome
sustained heart rate increase greater than or equal to 30 bpm within 10 minutes of standing
Irregular pulse
variations in force and frequency
may be due to arrhythmias, myocarditis
Weak, thready pulse - may be due to
may be due to low SV, cardiogenic shock
Bounding, full pulse - may be due to
shortened ventricular systole and decreased peripheral pressure or aortic insufficiency
Auscultation is what
Process of listening for sounds within the body
Auscultation landmarks - aortic valve
2nd R intercostal space at sternal border
Auscultation landmarks - pulmonic valve
2nd L intercostal space at sternal border
Auscultation landmarks - Tricuspid valve
4th L itnercostal space at sternal border
Auscultation landmarks - Mitral valve
5th L itnercostal space at midclavicle area
S1
lub
normal closure of mitral and tricuspid (AV valves)
S2
dub
normal closure of aortic and pulmonary valves (semilunar valves)
marks end of systole
S1 decreased in
first degree heart block
S2 decreased in
aortic stenosis
Systolic murmur
Falls between S1 and S2
Might indicate valvular disease or can be normal
Diastolic murmur
falls between S2 and S1
Usually indicates valvular disease
Grades of heart murmurs
Grade 1 (softest audible murmur) to Grade 6 (audible with stethoscope off chest)
Thrill murmur
an abnormal tremor accompanying a vascular or cardiac murmur
felt on palpation
Bruit is what
an adventitious sound or murmur (blowing sound) of arterial or venous origin
common in carotid and femoral arteries
indicative of atherosclerosis
Gallop rhythm is what
an abnormal heart rhythm with three sounds in each cycle, resembles a gallop of a horse
Gallop rhythm - S3 is what
associated with ventricular filling
occurs soon after S2
in older people can be indicative of LV congestive heart failure
Gallop rhythm - S4 is what
associated with ventricular filling and atrial kick/contraction
occurs just before S1
indicative of pathology like CAD MI aortic stenosis or chronic hypertension
ECG - P wave
atrial depolarization
ECG - PR interval
Time required for impulse to travel from atria to through conduction system to purkinje fibers
ECG - QRS wave
ventricular depolarization
ECG - ST segment
beginning of ventricular repolarization
ECG - T wave
ventricular repolarization
ECG - QT interval
time for electrical systole
ECG - PVC
premature beat arising from ventricle
No P wave, wide QRS that is premature
ECG - ventricular tachycardia
run of 3 or more PVCs
150-200 bpm
ECG - ventricular fibrillation
pulseless emergency sitation
no QRS
clinical death within 4 to 6 minutes
ECG - atrial arrhythmias
P waves are abnormal
rate rapid - atrial tachycardia (140-250), atrial flutter (250-350), atrial fibrillation (more than 300)
ECG - changes with acute MI
ST elevation
Hyperkalemia does what to ECG
widens QRS
flattens P
T is peaked
Hypokalemia does what to ECG
flattens T (or inverts) produces U wave
Hypercalcemia does what to ECG
widens QRS
short QT
Hypocalcemia does what to ECG
prolong QT
Hypothermia does what to ECG
elevate ST
slows rhythm
Digitalis does what to ECG
depress ST
flattens T wave (or inverts)
QT shortens
Quinidine does what to ECG
QT lengthens
T flattens (or inverts)
QRS lengthens
Beta blockers do what to ECG
dec HR
blunt HR response to exercise
Nitrates do what to ECG
Inc HR
Antiarrythmic agents do what to ECG
might prolong QT interval
Holter monitoring is what
Continuous ambulatory ECG monitoring via tape recording of cardiac rhythm for up to 24 hours
BP - normal
less than 120/80
Orthostatic Hypotension
systolic BO drops more than 20 mmHg OR diastolic drops more than 10 mmHg
Pediatric BP - infants less than 2 yrs
106 - 110 for systolic
59-63 for diastolic
Pediatric BP - children 3 to 5 yrs
113-116 systolic
67-74 diastolic
Mean arterial pressure is what
the arterial pressure within the large arteries over time
dependent on mean blood flow and arterial compliance
MAP - calculated how
sum of SBP and twice the DBP divided by 3
MAP - normal
70-110 mmHg
Normal adult RR
12-20
Normal newborn RR
30-40
Normal child RR
20-30
Tachypnea
greater than or equal to 22
Bradypnea
less than or equal to 10
Hyperpnea is what
increase in depth and rate of breathing
Dyspnea is what
shortness of breath
Orthopnea
inability to breathe when in a reclining or supine position
Paroxysmal nocturnal dyspnea
sudden inability to breathe occuring during sleep
Modified borg dyspnea scale
0 to 10
0 nothing at all
10 maximal
Adventitious sounds - crackles (rales) =
rattling, bubbling sounds
might be due to secretions in the lungs
Adventitious sounds - wheezes (ronchi)
whistling sounds
Hypoxemia
abnormally low amount of oxygen in blood (saturation below 90% meaning PaO2 of 60 mmHg)
Hypoxia
low oxygen level in tissues
Anoxia
complete lack of oxygen
Angina scale
1+ = light, barely noticeable 4+ = most severe pain ever experienced
Cardiac pain can refer to
shoulders, back, arms, neck, or jaw
Pain referred to back can occur from
dissecting aortic aneurysm