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typhoon01 typhoon01
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6 years ago
An 81-year-old male resident of a long-term care facility has a long-standing diagnosis of heart failure. Which of the following short-term and longer-term compensatory mechanisms are least likely to decrease the symptoms of his heart failure?
 
  A)
  An increase in preload via the Frank-Starling mechanism
  B)
  Sympathetic stimulation and increased serum levels of epinephrine and norepinephrine
  C)
  Activation of the renin-angiotensin-aldosterone system and secretion of brain natriuretic peptide (BNP)
  D)
  AV node pacemaking activity and vagal nerve suppression
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applebeedsapplebeeds
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