Tag: Vascular resistance

Nitric oxide (NO), a different molecule from nitrous oxide (N2O), is a well-established vasodilator. Conversely, answering the question of whether nitrous oxide causes vasodilation or vasoconstriction is more complex, as it exhibits nuanced and sometimes contradictory effects on the cardiovascular system depending on the context.

A 1981 study found that diuresis in patients with heart failure decreased systemic vascular resistance, demonstrating a reduction in afterload. This highlights the nuanced answer to the question: **Do diuretics decrease afterload?** It's a key aspect of their therapeutic benefit in managing conditions like heart failure.