La. Stat. tit. 51 § 134
In all cases under this Part the defendant shall file all exceptions in limine litis, or if necessary in the alternative, after the usual delays, and any additional delays as the court may allow; however, a plea to the jurisdiction is not waived by other pleas or exceptions filed. The judge shall take up such exceptions in preference over all other business and shall decide all questions raised in the exceptions within ten days after submission, and his ruling shall have the effect of res judicata, unless the party cast shall appeal within five days. The appeal is returnable within ten days to the appellate court which shall hear and determine the case within forty days. If the exceptions are overruled by final judgment of the appellate court, the defendant shall file his answer covering all questions of controverted fact within fifteen days, and the case may be set for trial on the application of either party, which case the judge shall consider in preference over all other business.
La. R.S. § 51:134