Interlocutory judgments

Would it be correct to state that everywhere in Canada, including Quebec, in Civil law, appeal of interlocutory judgments is allowed only in exceptional cases; all those judgments though become appealable as of right as soon as Civil trial has ended?

How is this in the U.S.?

Thanks.

Interlocutory actions are taken by courts when a question of law must be answered by an appellate court before a trial may proceed or to prevent irreparable harm from occurring to a person or property during the pendency of a lawsuit or proceeding. Generally, courts are reluctant to make interlocutory orders unless the circumstances surrounding the case are serious and require timely action.

Interlocutory appeals are restricted by state and federal appellate courts because courts do not want piecemeal litigation. Appeals courts generally review only cases that have reached final judgment in the trial courts. When a court administrator enters final judgment, this certifies that the trial court has ended its review of the case and jurisdiction shifts to the appellate court.

Interlocutory appeals are typically permitted when the trial judge certifies to the appellate court in an interlocutory order that an important question of law is in doubt and that it will substantially affect the final result of the case. Judicial economy then dictates that the court resolve the issue rather than subject the parties to a trial that may be reversed on an appeal from a final judgment.

But are you able to appeal interlocutory judgments after the final judgment?