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Primary Care Exam 4 > CAD > Flashcards

CAD Flashcards

1
Q

What are some age related changes to the heart valves?

A

Calcification and fatty degeneration of valve leaflets and annuli

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2
Q

What are some age related changes to the coronary arteries?

A

Dilation, tortuosity, and medial calcification

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3
Q

What are some age related changes to the conduction system of the heart?

A
  • Fibrosis and loss of special cells and fibers
  • Loss of 75% of pacemaker cells in SA node
  • Fibrosis of AV node and left anterior fascicle
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4
Q

What are some additional age-related physiological changes that occur in the heart?

A
  • Myocardial relaxation decreases
  • Diastolic dysfunction develops
  • Valvular regurgitation develops
  • Peak exercise heart rate declines
  • PR, QRS, QT are prolonged
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Primary Care Exam 4 (3 decks)

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