CV exam, heart sounds - Johnston Flashcards
proper sequence of physical exam in
assessment of cardiac function
IPPA: inspection,
palpation, percussion, auscultation
the proper approach to assessment of the
cardiovascular system
history, physical, ECG, imaging,
lab
shortness of breath
dyspnea
coughing up frothy, blood tinged secretions
hemoptysis
patient puts heart right on chest wall, called
levine sign
no specific s/s of CHF but potential are
fatigue dyspnea chest pain palpitations syncope
familial clustering is
common in patients with certain heart
diseases; ie:
hypertrophic cardiomyopathy,
Marfan’s syndrome, prolonged QT
syndrome
seen in young athletes when push them too hard, they die an “electrical” death, ventriuclar ectopy, ventriuclar tachycardia/ fabriliation
hypertrophic cardiomyopathy
problem with CT, prone to aortic aneurysms, tall and lanky, congenital form of heart disease
Marfan’s syndrome
prolonged QT syndrome..
ones with long QT interval prone to developing suddne death from arrythmias
dependent on rate of heartbeat
if PMI displaced laterally or downward..
means bigger heart see if there’s hypertrophy/ cardiac enlargement
ideal conditions and patient positions for auscultaiton of heart
quiet room
gown patient
sitting, supine, left lateral decubitus, leaning forward, standing
considerations when inspecting/ looking at patient
Face – Acromegaly, Cushnoid, Down’s syndrome, hyperthyroid, myxedema Jaundice – yellow Cyanosis – blue Pallor – pale, anemia, shock Nails – clubbing, hemorrhages Body habitus – tall, short Hydration – Blood pressure, weight Temperature
inspection of heart
Precordium
Scars, pacemaker, skeletal abnormalities
Apex – 5th ICS, left, 1 cm. Medial to MCL
palpable thrill reflective of loud heart murmur will be graded
4 or above
palpation of heart
Apex beat; gently lifts palpating fingers
Thrills – turbulent blood flow causing murmurs
percussion of heart
Limited: cardiac border
S1
MV closure 1st component TV closure 2nd component Beginning of systole Loudest at apex [full sequence: MTAP]
S2
Aortic valve closure 1st component Pulmonic valve closure 2nd component Loudest at the base End of systole Marks end of systole, beginning of diastole [full sequence: MTAP]
PMI
point of maximal intensity
PMI in LVH
laterally displaced, downward to 6-7th ICS
PMI in RVH
sustained systolic lift at lower left sternal area
location of heart sounds
Aortic V. – 2nd ICS to the R of sternum Pul V – 2nd ICS L of sternum Tricuspid – 4th ICS at LSB Mitral – Apex of heart 5th Left ICS at mid - clavicular line
S2 splits during.. because of..
Splitting of S2
inspiration because of increased venous
return during inspiration and more time for
RV to deliver blood to the lung (delayed P2)
murmur grading system
- Barely audible, faint
- Soft, but easily heard, quiet
- Loud, without a thrill
- Loud with a thrill
- Loud with minimal contact between
stethoscope and chest - Thrill
Loud, can be heard without a stethoscope
vibratory sensations caused by the heart and felt on the body surface
thrills
starts with S1 and stops at S2 without a gap between murmur and heart sounds
pansystolic (holosystolic ) murmur
begins after S1 and stops before S2, brief gaps between murmur and heart sounds, gap just before S2 heard more easily and confirmatory
midsystolic murmur
starts in mid or late systole and persists up to S2
late systolic murmur
diastolic murmurs
early
mid
late
starts short time after S2, may fade away or merge into a late diastolic murmur
middiastolic murmur
Stretching of myocytes prior to contraction. It’s the EDP at the beginning of systole
preload
Load on heart during ejection of blood from ventricle. Vent. pressure at end of syst (ESP)
afterload
INCREASED preload causes
INCREASED active force development up to a limit
INCREASED afterload
DECREASED volume of blood ejected each beat
Blood ejected from ventricle per beat= EDV-ESV
Stroke volume (SV)
the preload in V
EDV
the afterload in V
ESV
Cardiac Output (CO)
volume of blood pumped by heart in a minute
CO = SV x HR
Ejection Fraction (EF)
Measures contractility: (EF= SV/EDV)
normal, reduced, and severely reduced EF
normal 50-60
mild reduced 40-49
mod reduced 30-39
severely reduced 15-29
what is the Kussmauls sign and what does it indicate
Venous column (JVP) rises during
inspiration, rather than falls
Seen in R heart failure, constrictive
pericarditis or RV infarction