Lab Exam 1 Flashcards
Where can you locate Aortic semilunar valve?
Right 2nd Rib space
Where can you locate Pumonary Semilunar valve?
Left 2nd Rib Space
Where can you locate Tricuspid valve?
Right 5th rib space
Where can you locate Bicuspid Valve?
Left 5th rib space
Equation for BP is
Systolic BP / Diastolic BP
Systolic Pressure is
peak arterial BP during ventricular contraction
Diastolic Pressure is
minimum arterial BP during ventricular relaxation
Equation for Pulse Pressure is
Systolic - Diastolic
Equation for Mean Arterial Pressure is
Diastolic BP + 1/3(Systolic-Diastolic)
Steps of Cardiac Conduction System
- SA node fires
- Excitation spreads through atrial myocardium
- AV node fires
- Excitation spread down AV bundle into right and left bundle branches
- Purkinje fibers distribute excitation through ventricular myocardium
EKG set up for Lead I
Horizontal - left arm to right arm
EKG set up for Lead II
Diagonal - right arm to left leg
EKG set up for Lead III
Vertical - left arm to left leg
Ground for EKG set up is
right leg
P wave
Atrial Depolarization
QRS complex
Ventricular Depolarization
T wave
Ventricular repolarization
PR Interval
Atrial Cycle
QT Interval
Ventricular Cycle
PQ Segment
Atrial Systole
ST Segment
Ventricular Systole
1 box is
0.04 seconds
Equation for heart rate
1500 / # of boxes from R to R
What are 3 main roles of blood?
Transportation, Protection, and Regulation
