A post CABG patient with normal blood pressure but high pulmonary wedge pressure requires?

In the context of a patient who has undergone coronary artery bypass grafting (CABG) and presents with normal blood pressure but elevated pulmonary wedge pressure (PWP), the requirement for diuretics or venous dilators is a critical response. Elevated PWP often indicates left-sided heart pressure overload or congestion, suggesting that the heart is struggling to effectively manage the volume return, leading to fluid accumulation in the pulmonary circulation.

Diuretics help reduce this excess fluid volume by promoting renal excretion of sodium and water, which decreases preload on the heart and alleviates pulmonary congestion. As a result, this can lead to improved pulmonary function and decreased respiratory distress in the patient. Venous dilators, on the other hand, work by decreasing venous return to the heart, which reduces the workload on the heart and can help improve symptoms related to heart failure or fluid overload.

Using volume replacement would be contraindicated in this scenario as it could further exacerbate the fluid overload situation indicated by the high pulmonary wedge pressure. Similarly, inotropes and vasopressors would not be appropriate in a patient with normal blood pressure; these therapies are generally reserved for cases of low blood pressure or inadequate cardiac output.

Thus, the chosen intervention aligns with the need