Term
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Definition
| when a site along the conduction pathway becomes irritated and speeds up taking over as the pacemaker |
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Term
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Definition
| refers to the initiation of the electrical conduction of the heart without outside stimulation |
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Term
| Sinus node conduction rate |
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Definition
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Term
| AV junction conduction rate |
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Definition
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Term
| Ventricular conduction rate |
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Definition
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Term
|
Definition
| when the normal pacemaker slows down or fails and a pacemaker site the conducts slower takes over. |
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Term
|
Definition
| by comparing the height of the spike to the horizonta lines on graph paper |
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Term
|
Definition
| deflections above or below the isoelectric point |
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Term
|
Definition
| the area between and including the waves |
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Term
|
Definition
| a group of waves together |
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Term
|
Definition
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Term
|
Definition
| atrial depolarization plus the delay of the impulse in the AV node |
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Term
|
Definition
| ventricular depolarization |
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Term
|
Definition
| ventricular repolarization |
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Term
|
Definition
-sinus node initates impulses at normal rate
-60-100bpm
-1 p wave for every QRS
-rate is regular |
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Term
|
Definition
-sinus node initiates regular impulses at a slow rate
-rhythm is regular
-< 60 bpm |
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Term
|
Definition
infection of the inner layer of the heart that usually affects the cardiac valves
treated with penicillin |
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Term
| subacute infective carditis |
|
Definition
-longer clinical course
-insidious onset
-caused by enterococci
-occurs with hx of valvular disease |
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Term
|
Definition
-shorter clinical course
-rapid onset |
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Term
| Risk factors for infective carditis |
|
Definition
-prior endocarditis
-prosthetic valves
-acquired valvular disease
-cardiac lesions
-over 50
-IV drug abuser
-intravascular devices
-renal dialysis |
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Term
|
Definition
-accumulation of fibrin, leukocytes, platelets, and microbes
-adhere to valve or endocardium |
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Term
|
Definition
| spreads to the brain, kidney, spleen |
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Term
|
Definition
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Term
|
Definition
-inflammation of the visceral and parietal pericardium
-often idiopathic or viral |
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Term
|
Definition
-compression of adjoining structures
-ex. lungs, phrenic nerve, laryngal nerve |
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Term
|
Definition
inflammatory disease of the heart that involves all 3 layers of the heart
-abnormal immune response |
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Term
|
Definition
| chronic condition characterized by scarring and deformity of heart valves |
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Term
|
Definition
| delayed involuntary movement |
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Term
|
Definition
| bright pink macular lesions on trunk and proximal extremities |
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Term
|
Definition
| firm, soft, hard, painless nodules over joints |
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Term
|
Definition
-valve or orifice is restricted and impeding forward blood flow
-creates a pressure gradient across open valve |
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Term
|
Definition
-incomplete closure of a valve leaflets that results in backward flow of blood
-may result from ischemia or papillary muscle dysfunction |
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Term
|
Definition
| repair of the valve by suturing torn leaflets, chordae tendineae or papillary muscles |
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Term
|
Definition
| ring used to reconstruct a regurgitant mitral valve annulus |
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