Is low blood pressure a symptom of congestive heart failure?

Low blood pressure: No, on the contrary, high blood pressure would be, but not so much a symptom, but as a contributing cause.

Bad prognosis?: Low blood pressure in a pt. With CHF is a sign of bad prognosis and may be because the diuretics and ace inhibitors or other medications used to control hypertension before? If pt has too much fluid and the BP is low there is not much room to increase the dosis of the diuretics without causing collapse.