Summary Things to know for Medical Surgical Nursing: Cardiovascular System

4 VALVES
4 VALVES
2 ARTERIOVENTRICULAR VALVES
close at beginning of ventricular contraction

tRicuspid = Right of heart
bicuspid (mitraL) = Left of heart

2 SEMILUNAR VALVES
opens during ventricular contraction

Pulmonic = b/n RV and Pulmonary artery
Aortic = b/n LV and Aorta


CONDUCTION SYSTEM
CONDUCTION SYSTEM
SA
main pacemaker
initiates heart beat

AV
Bundle of His
right and left bundle
branch
Purkinje Fibers
spreads the wave of
depolarization

, HEART SOUNDS
HEART SOUNDS
S1 S3
closing of heard if ventricular wall
atrioventricular compliance is
valves (tricuspid and aka Gallop
mitral) heard after S2
loudest @ Apex d/t physiologic or pathologic

S2 S4
closing of semilunar heard on atrial systole if
valves (pulmonic and resistance to ventricular
aortic) filling is present
loudest @base of heart heard before S1
abnormal


HEART RATE = CO

CVD RISK
CVD RISK FACTORS
FACTORS CHOSE TD CA

C igarette smoking T ype A personality
H TN D M2 non-modifiable
O besity
G enetics,
S edentary lifestyle C ontraception
Gender
E levated serum lipid A lcohol
and cholesterol H eredity
A ge
R ace