Cardioooo Flashcards
What occupies most of the anterior cardiac surface
right ventricle
What does the right ventricle and pulmonary artery form
wedge-like structure behind and to the left of the sternum
Where does the inferior border of the right ventricle lie
below the junction of the sternum and the xiphoid process
Where is the right ventricle located
narrows superiorly
Where is the left ventricle located
behind the right ventricle and to the left
Where is the PMI located
found in the 5th interspace lateral to the midsternal line
What is a PMI >2.5 evident of?
Left Ventricular Hypertrophy
In patients with COPD where can the PMI be located
xiphoid or epigastric area as a result of right ventricular hypertrophy
Where is the aorta located
curves upward from the left ventricle to level of sternal angle
Where is S1 and S2 produced
S1 - closure of mitral valve
What 2 discernible components do you hear from S2
A2 - aortic valve closure
Of the two components of S2 which is louder and why
A2 louder
When is S3 produced
abrupt deceleration of inflow across the mitral valve
When is S4 produced
increased left ventricular and diastolic stiffness which decrease compliance
Which side usually occurs first the right side or left side
Left side occurs lightly earlier
Why does the right side occur slight later
due to inspiration and increase in right ventricular stroke volume
Of the two components of S2 which is lower and where is it located
P2 is softer - the lower pressure of pulmonary artery
What are heart murmurs
turbulent blood flow
What types of diseases can cause heart murmurs
stenotic valve
What are types of murmurs and where are they usually heard
mitral valve - at or around the apex of heart
Review of conduction system
P wave ->atrial depolarization
What is Cardiac Output
volume of blood ejected from each ventricle in 1 min
What is Stroke volume
blood ejected with each heartbeat
What is Preload
load that stretches cardiac muscle
What increases preload
increase of venous return to heart
What decreases preload
exhalation
What is Myocardial Contractility
increases when stimulated from Sympathetic Nervous system
What is Afterload
degree of vascular resistance to ventricular contraction
What are the main sources of Afterload
walls of aorta
What is Jugular Venous Pressure
reflects right atrial pressure
What causes jugular venous pulsations
changing pressures in the right atrium during diastole and systole
Where is the apical impulse heard the best
children
At what point does the Apical Impulse start to become harder to find
as the chest deepens in its anteroposterior diameter
Is the splitting of S2 hard to hear in older people and if so, why?
Yes
Where is a jugular venous hum heard?
common in children
When assessing cardiac symptoms what should you quantify
the patients baseline level of activity
What is the most common symptom of Coronary Heart disease
CHEST PAIN
What are the symptoms that make up Angina Pectoris
exertional pain
what are symptoms of Acute Aortic Dissection
anterior chest pain
What are palpitations
unpleasant awareness of the heartbeat
What is Afib
Irregularly irregular
What are premature contractions
transient skips and flip-flops
What is Paroxysmal supraventricular tachycardia
rapid regular beating of sudden onset and offset
What is Sinus Tachycardia
rapid regular rate of < 120 beats/min, especially if starting or stopping more gradually
What can Shortness of Breath represent
Dyspnea