Chapter 31: Cardiac Flashcards
Normal pulse for newborn-infants
130-160 bpm
What effects the function of Cardiac output
Heart rate x stroke volume
Echocardiograph
Uses ultrasonic waves to produce echoes to form a latter to evaluate the hearts function and detect myocardial thickness and motion
What part of the heart attaches to the diaphragm and serial wall?
Epicardium
Layers of heart
Epicardium
Myocardium
Endocardium
Cardiac catheterization
Helps visualize coronary arteries and identify possible narrowing
Beta blockers function
Reduce blood pressure
What blood vessels are the primary regulators of blood flow
Arterioles
Annual check up of BP occurs after what age?
After 3 years of age, BP should be measured annually
Diastole
Atrias fill with blood (valves are closed)
Atrial systole
Contraction of atria pumps blood into ventricles
Ventricular systole
Contraction of ventricles pump blood into aoric and pulmonic arteries
S1
Tricuspid and mitral valves
Loudest at apex of the heart
S2
Aortic and pulmonic
Abnormal heart sounds
S3-after S2= congested heart failure
S4-before S1 = hypertension
Murmur
What does stroke volume depend on
Accommodation of incoming blood volume
Contraction of heart
Resistance of blood flow
SA node
Pace maker=originates and stimulate contraction to atria
AV node
Sends impulse into ventricles
Pulmonary embolism
Thrombus at the pulmonary system
Myocardial Ischemia
Decrease back flow to you heart which prevent heart from reviewing oxygen
Atherosclerosis
Built up of cholesterol, plaque, fats in artery wall that causes restricted blood flow
Aneurism
Ballooning and weakened area in artery
Thrombus
Blood clot
Embolus
Break of thrombus and travels in circulation
Rubs
Valves rubbing against each other
Radiography
Establish size and shape of heart and aorta
Exercise testing
Assess response to cardiovascular stress and any ischemia
Blood flow studies
Help look at specific areas of arteries or brain
Doppler studies
Cardiac bio markers (cardiac enzymes)
Myoglobin
Creating-kinase-MB
Troponin
HDL
Good lipids
LDL
Bad lipids