Flashcards in Cardiovascular Assessment (Josh) Deck (93)
Which valves are the AV valves?
Which valves are the Semilunar Valves?
AV = Tricuspid and Mitral
Semilunar = Pulmonica and Aortic
What does the "LUB" sound coincide with?
closure of AV valves
What does the "DUB" sound coincide with?
closure of Semilunar valves
How many phases of the Cardiac Cycle?
Mean Arterial Pressure must be at least --- to maintain adequate blood flow through coronary arteries.
Mean Arterial Pressure must be --- to maintain perfusion through major body organs like kidneys and brain.
When does coronary artery blood flow to the myocardium?
When does the "Lub" sound happen?
When does the "Dub" sound happen?
Lub = MITRAL (AV) Valve closes
Dub = AORTIC (Semilunar) valve closes
Diastole and Systole:
--- consists of relaxation and filling of atria and ventricles and accounts for two-thirds of cardiac cycle.
Diastole and Systole:
--- consists of the contraction and emptying of of atria and ventricles and accounts for one-third of cardiac cycle.
How is Cardiac Output calculated?
CO = HR x SV
What is Stroke Volume?
amount of blood ejected by left ventricle during each contraction
Normal HR for adult is ---
How is BP calculated?
BP = SV x Systemic Vascular Resistence (SVR)
How is MAP calculated?
SBP + DBP *2 / 3
What is a Normal MAP?
What is Systolic BP?
What is Diastolic BP?
SBP = pressure generated by left ventricle to distribute blood into aorta
DBP = pressure against arterial walls during relaxation phase of heart
What is Central Venous Pressure?
reflects filling pressures of the right side of the heart
Normal value is 2-5 mmHg
What is normal CO?
What is Cardiac Index (CI)?
adjusts CO for body size
Normal Value is 2.2-4.0 L/min/meters squared
How is SV calculated?
(CO / HR) x 1000 = SV
What is normal SV?
What is Systemic Vascular Resistence (SVR)?
the resistence against which the left ventricle must pump to eject its volume
normal value is 800-1400 dynes/sec/cm
What is normal SVR?
What is the best indicator of fluid balance?
2.2 lb = 1 kg = 1 L
How much does one liter of fluid weigh?
1 L = 1 kg = 2.2 lb
--- are located in arch of aorta and respond when walls are stretched by increased BP
***they in turn inhibit the vasomotor center in the Pons and Medulla which leads to drop in BP
Which side is typically done first and goes through the femoral vein into the IVC?
Right Sided Cath
***Left Sided Cath goes through femoral artery against blood flow
When performing Hemydynamic Monitoring, what do we set the Pressure Bag to?