RA
right atrium
LA
left atrium
RV
right ventricle
LV
left ventricle
AV
atrioventricular valves, nodes and bundle
SL
semilunar valves
SA
sinoatrial node
ECG
electrocardiogram
SVC
superior vena cava
IVC
inferior vena cava
BP
blood pressure
CVP
central venous pressure
CVC
central venous catheter
JVP
jugular venous pressure or pulse
HRrest
resting heart rate or basal heart rate
HRmax
maximum heart rate
ETT
exercise tolerance test
SOBOE
shortness of breath or exertion
PND
paroxysmal nocturnal dyspnoea
PACs
premature atrial contractions
PVCs
premature ventricular contractions
PAT
paroxysmal atrial tachycardia
AF
atrial fibrillation
SSS
sick sinus syndrome