Define the S1 and S2 heart sounds and describe where they are best auscultated: Define an S3 and S4 heart sound and where they are best auscultated: When is an S3 a normal heart sound? When might you auscultate a systolic murmur versus a diastolic murmur? Why might a person have a pericardial friction rub? How do you auscultate for this? What symptoms might accompany that finding? Upon inspection, how can you tell the difference between the carotid artery pulsation and the jugular vein? What would differ when palpating the carotid artery compared to the jugular vein? Why might you listen to the carotid artery? What is the technique?