text: Yo, listen up, I got a tale to tell,
  'Bout them natriuretic peptides, known so well,
  Atrial natriuretic peptide, brain natriuretic peptide (BNP),
  They keep the fluid balanced, regulate BP.
  
  When it comes to the heart, they play a crucial role,
  In fluid volume homeostasis, they take control,
  And if you got cardiac issues, they'll rise to the top,
  Elevated NP levels, markers that won't flop.
  
  Left-ventricular dysfunction, yeah, it's a concern,
  But NP measurements, they got something to learn,
  Clinical studies, big and small, they've been through,
  Testing NP reliability, seeing what they can do.
  
  BNP, in particular, shines real bright,
  A biochemical marker, screening LVD with might,
  It's useful, inexpensive, a test that won't miss,
  Identifying LVD, preventing further abyss.
  
  But let's not stop there, let's dig even deeper,
  NPs' role in LVD, let's be a truth seeker,
  They may contribute directly to cardiac strife,
  Playing a part in the etiology of life.
  
  So there you have it, the findings are clear,
  Natriuretic peptides, they're something to cheer,
  They regulate, they measure, they're here to stay,
  In the fight against LVD, they pave the way.