A patient comes with sudden respiratory distress, on examination, bilateral basal crepts are present over chest suggestive of pulmonary edema with normal alveolar wedge pressure. The likely cause is
Answer is A (Narcotic overdose): Pulmonary edema with normal pulmonary capillary wedge pressure suggests a diagnosis of ARDS or non cardiogenic pulmonary edema. Narcotic overdose is the only non cardiogenic cause for pulmonary edema (ARDS) amongst the options provided and hence the answer here.
Narcotic overdose
Congestive hea failure
Myocardial infarction
Cardiogenic shock