Final answer:
The patient with respiratory distress and a history of myocardial infarctions is likely experiencing pulmonary edema due to left ventricular dysfunction, as indicated by the pulmonary symptoms and absence of JVD and pedal edema.
Step-by-step explanation:
The patient is most likely experiencing pulmonary edema as a result of heart failure, specifically due to left ventricular dysfunction. Pulmonary edema can be identified by difficulty breathing and crackling lung sounds, which are signs of fluid accumulation in the air sacs of the lungs. The absence of Jugular Vein Distension (JVD) and pedal edema suggests that right heart failure, which typically presents with these symptoms, is not the primary issue. Given the patient's history of multiple myocardial infarctions, it is likely that the pulmonary edema is a consequence of compromised left ventricular function, where the heart is unable to pump blood effectively, leading to an increased hydrostatic pressure in the pulmonary capillaries and resulting in fluid leakage into the lung tissue.