Checking Circulation

Question 1

What can Jugular Venous Pulsations (JVPs) tell us as clinicians

Answer 1

-Surrogate for pressure in the R atrium, preload

Question 2

How do you distinguish arterial vs venous pulsations

Answer 2

Arterial= easily palpated but not visualized, normally has a single wave

Venous=easily visualized but not palpated, normally has 2 waves

Question 3

What are the waves associated w/ Jugular Venous Pulsations (JVPs)

Answer 3

A wave=Rise in R atrial pressure during atrial contraction

X descent=atrial diastole

C wave=bowing of tricuspid during ventricle systole

V wave= R atrial filling, tricuspid closed

Y descent= emptying of R atrium

Question 4

Define pulse pressure

Answer 4

difference between systolic and diastolic , normally 40-60 mm Hg

Question 5

What does arteriosclerosis d/t pulse pressure

Answer 5

Systolic BP is high but diastole is normal d/t reduced compliance and this causes increased pulse pressure

Question 6

What would L ventricle dysfunction d/t pulse pressure

Answer 6

Systolic BP is low and diastole is normal because L ventricle is not pumping efficiently or w/ force

Question 7

What is mean arterial pressure (MAP)

Answer 7

the average arterial BP throughout one cardiac cycle

diastolic BP+1/3(systolic BP +diastolic BP), equation is this way b/c diastole last longer than systole