In a medical malpractice action to recover damages for personal injuries, plaintiff appeals, as limited by his brief, from so much of a judgment of the Supreme Court, Suffolk County, entered March 10, 1972, as is in favor of defendants Israel Lewis Schmierer and Maimonides Hospital, upon the trial court’s dismissal of the complaint as to said defendants at the close of plaintiff’s ease. Judgment reversed insofar as it is in favor of defendant Israel Lewis Schmierer, on the law, and, as between plaintiff and said defendant, action severed and new trial granted, with costs to abide the event. Judgment affirmed as to defendant Maimonides Hospital, without costs. The appeal did not raise questions of fact. In our opinion, affording plaintiff the benefit of all the fair and reasonable inferences, there was sufficient evidence to justify a verdict against defendant Dr. Schmierer, but not against Maimonides Hospital (Cappell v. Board of Educ., Union Free School Dist. No. 4, Northport, 40 A D 2d 848; James v. Solder, 34 A D 2d 632). The record is devoid of any evidence to create an issue of improper conduct on the part of the hospital’s nurses or internes which contributed to plaintiff’s injury. Plaintiff, an RH baby, was born on May 16, 1953 with a blood disease resulting from the incompatibility between the RH negative blood of his mother and his RH positive blood. A result of this incompatibility is the production of a poison known as bilirubin which flows through the blood stream and causes irreversible brain damage. In accordance with accepted medical practice, a complete blood exchange transfusion commenced shortly after birth. The process was halted after 120 cc. of blood had been exchanged, because the baby became cyanotic. It was not resumed until four days later. During that time the baby developed deep jaundice, a sign of the progress of the bilirubin, and, by May 20, showed signs of kernieterus, the invasion of the brain by bilirubin. There is testimony in the record to the effect that defendant Dr. Schmierer and the transfusionists, who were independent practitioners not on the paid staff of the defendant hospital, postponed the transfusion because the baby was still cyanotic. Dr. Schmierer testified that bilirubin tests were of vital importance, that proper medical practice required the taking of such tests and that he had ordered the baby constantly monitored and bilirubin tests to be made every eight hours. The hospital records do not confirm that testimony. Furthermore, even assuming he had given such orders, a jury might find him remiss, as the physician in charge of the case, in failing to check that the orders were being carried out in an area as critical as this was. Physicans are not liable for mistakes in professional judgment, provided that they do what they think best after careful examination (Pike v. Sonsinger, 155 N. Y. 201, 210; Cunningham v. State of New York, 10 A D 2d 751). However, liability can ensue if their judgment is not based upon intelligence and thus there is a failure to exercise any professional judgment (see DuBois v. Decker, 130 H. Y. 325, 329-330; Kaminsky v. Sarnoff, 220 App. Div. 286). Giving plaintiff the benefit of all reasonable inferences, a jury could find that the
