delivered the opinion of the Court.
In this case, we decide whether the plaintiff raised a genuine issue of material fact that defendant Hospital was vicariously Hable under the theory of ostensible agency for an emergency room physician’s negligence. We granted Baptist Memorial Hospital System’s application for writ of error to resolve a conflict in the holdings of our courts of appeals regarding the elements required to establish liability against a hospital for the acts of an independent contractor emergency room physician. We hold that the plaintiff has not met her burden to raise a fact issue on each element of this theory. Accordingly, we reverse the judgment of the court of appeals,
I
On March 23, 1990, Rhea Sampson was bitten on the arm by an unidentified creature that was later identified as a brown recluse spider. By that evening, her arm was swollen and painful, and a friend took her to the Southeast Baptist Hospital emergency room. Dr. Susan Howie, an emergency room physician, examined Sampson, diagnosed an allergic reaction, administered Benadryl and a shot of painkiller, prescribed medication for pain and swelling, and sent her home. Her condition grew worse, and she returned to the Hospital’s emergency room by ambulance a little over a day later. This time Dr. Mark Zakula, another emergency room physician, treated her. He administered additional pain medication and released her with instructions to continue the treatment Dr. Howie prescribed. About fourteen hours later, with her condition rapidly deteriorating, Sampson went to another hospital and was admitted to the intensive care ward in septic shock. There, her bite was diagnosed as that of a brown recluse spider, and the proper treatment was administered to save her life. Sampson allegedly continues to have recurrent pain and sensitivity where she was *947 bitten, respiratory difficulties, and extensive scarring.
Sampson sued Drs. Howie and Zakula for medical malpractice. She also sued Baptist Memorial Hospital System (“BMHS”), of which Southeast Baptist Hospital is a member, for negligence in failing to properly diagnose and treat her, failing to properly instruct medical personnel in the diagnosis and treatment of brown recluse spider bites, failing to maintain policies regarding review of diagnoses, and in credentialing Dr. Zakula. Sampson also alleged that the Hospital was vicariously liable for Dr. Zakula’s alleged negligence under an ostensible agency theory. Sampson nonsuited Dr. Howie early in the discovery process. The trial court granted BMHS summary judgment on Sampson’s claims of vicarious liability and negligent treatment. The trial court severed those claims from her negligent credentialing claim against BMHS and her malpractice claim against Dr. Zakula. 1 Sampson appealed only on the vicarious liability theory.
Both parties agree that BMHS established as a matter of law that Dr. Zakula was not its agent or employee. Thus the burden shifted to Sampson to raise a fact issue on each element of her ostensible agency theory, which Texas courts have held to be in the nature of an affirmative defense.
See Brownlee v. Brownlee,
II
Under the doctrine of respondeat superior, an employer is vicariously liable for the negligence of an agent or employee acting within the scope of his or her agency or employment, although the principal or employer has not personally committed a wrong.
See DeWitt v. Harris County,
Texas courts have applied these basic agency concepts to many kinds of principals, including hospitals.
See Sparger v. Worley Hosp., Inc.,
Ill
In this ease, the court of appeals held that two distinct theories of vicarious liability with different elements are available in Texas to impose liability on a hospital for emergency room physician negligence: agency by estoppel (referred to in this opinion as ostensible agency), based on the Restatement (Second) of Agency section 267, and apparent agency, based on the Restatement (Second) of Torts section 429.
See
[W]e take an additional step in our analysis to consider whether notice provided in consent forms and posted in emergency rooms can ever be sufficient to negate a hospital’s “holding out”....
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... Because we do not believe hospitals should be allowed to avoid such responsibility, we encourage the full leap — imposing a nondelegable duty on hospitals for the negligence of emergency room physicians.
We first reject the court of appeals’ conclusion that there are two methods, one “more difficult to prove” than the other, to establish the liability of a hospital for the malpractice of an emergency room physician.
Apparent authority in Texas is based on estoppel. It may arise either from a principal knowingly permitting an agent to hold herself out as having authority or by a principal’s actions which lack such ordinary care as to clothe an agent with the indicia of authority, thus leading a reasonably prudent person to believe that the agent has the authority she purports to exercise. ...
A prerequisite to a proper finding of apparent authority is evidence of conduct by the principal relied upon by the party asserting the estoppel defense which would lead a reasonably prudent person to believe an agent had authority to so act.
Ames
v. Great S. Bank,
Next, we reject the suggestion of the court of appeals quoted above that we disregard the traditional rules and take “the full leap” of imposing a nondelegable duty on Texas hospitals for the malpractice of emergency room physicians.
IV
We now examine the record below in light of the appropriate standard. The Hospital may be held liable for the negligence of Dr. Zakula if Sampson can demonstrate that (1) she held a reasonable belief that Dr. Zakula was an employee or agent of the Hospital, (2) her belief was generated by some conduct on the part of the Hospital, and (3) she justifiably relied on the appearance that Dr. Zakula was an agent or em
*950
ployee of the Hospital.
See, e.g., Brennan,
As summary judgment evidence, BMHS offered the affidavit of Dr. Potyka, an emergency room physician, which established that the emergency room doctors are not the actual agents, servants, or employees of the Hospital, and are not subject to the supervision, management, direction, or control of the Hospital when treating patients. Dr. Potyka further stated that when Dr. Zakula treated Sampson, signs were posted in the emergency room notifying patients that the emergency room physicians were independent contractors. Dr. Potyka’s affidavit also established that the Hospital did not collect any fees for emergency room physician services and that the physicians billed the patients directly. BMHS presented copies of signed consent forms as additional summary judgment evidence. During both of Sampson’s visits to the Hospital emergency room, before being examined or treated, Sampson signed a “Consent for Diagnosis, Treatment and Hospital Care” form explaining that all physicians at the Hospital are independent contractors who exercise their own professional judgment without control by the Hospital. The consent forms read in part:
I acknowledge and agree that ..., Southeast Baptist Hospital, ... and any Hospital operated as a part of Baptist Memorial Hospital System, is not responsible for the judgment or conduct of any physician who treats or provides a professional service to me, but rather each physician is an independent contractor who is self-employed and is not the agent, servant or employee of the hospital.
To establish her claim of ostensible agency, Sampson offered her own affidavits. In her original affidavit, she stated that although the Hospital directed her to sign several pieces of paper before she was examined, she did not read them and no one explained then-contents to her. Her supplemental affidavit stated that she did not recall signing the documents and that she did not, at any time during her visit to the emergency room, see any signs stating that the doctors who work in the emergency room are not employees of the Hospital. Both affidavits state that she did not choose which doctor would treat her and that, at all times, she believed that a physician employed by the hospital was treating her. Based on this record we must determine if Sampson produced sufficient summary judgment evidence to raise a genuine issue of material fact on each element of ostensible agency, thereby defeating BMHS’s summary judgment motion.
Even if Sampson’s belief that Dr. Zakula was a hospital employee were reasonable, that belief, as we have seen, must be based on or generated by some conduct on the part of the Hospital. “No one should be denied the right to set up the truth unless it is in plain contradiction of his former allegations or acts.”
Gulbenkian v. Penn,
Sampson has failed to raise a fact issue on at least one essential element of her claim. Accordingly, we reverse the judgment of the court of appeals and render judgment that Sampson take nothing.
Notes
. Sampson subsequently nonsuited her negligent credentialing claim against BMHS.
. Many courts use the terms ostensible agency, apparent agency, apparent authority, and agency by estoppel interchangeably. As a practical matter, there is no distinction among them.
See, e.g., Birmingham-Jefferson County Transit Auth. v. Arvan,
