United Blood Services v. Longoria

In this summary judgment ease, we decide whether the trial court abused its discretion by rejecting the nonmovant’s expert testimony. The court of appeals held that it did. 907 S.W.2d 605. Because we conclude that the court of appeals improperly substituted its opinion for that of the trial court on a matter committed to the trial court’s discretion, we reverse the judgment of the court of appeals and render judgment that Plaintiffs take nothing.

Shortly after her birth in 1982, San Juanita Longoria contracted acquired immune deficiency syndrome (AIDS) and cytomegalovi-rus (CMV) following a…