Nitroglycerin and coronary perfusion

All of the following are correct about mechanism of action of nitroglycerin in coronary perfusion except

  • Improve coronary blood flow in normal heart
  • Improve sub-endocardial perfusion in HF
  • Improve coronary collateral blood flow
  • Dilates both conduit and resistance arteries

Answer will be posted in comment section tomorrow

Good day !

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