OPINION

Thomas Flaherty, a Corrections Officer at Allegheny County Jail, appeals the District Court’s denial of his motion for summary judgment based upon a claim of qualified immunity. For the reasons that follow, we will affirm. 1

I.

Inasmuch as we are writing primarily for the parties who are familiar with this *143 case, we need not recite the factual or procedural background of this dispute.

In considering a claim of qualified immunity, we must first consider whether the facts alleged, taken in the light most favorable to the party claiming the injury, demonstrate that the officer’s conduct violated a constitutional right. Saucier v. Katz, 533 U.S. 194, 201, 121 S.Ct. 2151, 150 L.Ed.2d 272 (2001); see also United Artists Theatre Circuit, Inc. v. Twp. of Warrington, PA 316 F.3d 392, 398 (3d Cir. 2003). If no constitutional right would have been violated under the facts alleged by the plaintiff, our inquiry is at an end and the defendant is entitled to qualified immunity. Saucier, 533 U.S. at 201, 121 S.Ct. 2151. If a constitutional right may have been violated by the actions alleged, the defendant is only entitled to qualified immunity if the right was not clearly established. Id.; see also United Artists Theatre Circuit, Inc., 316 F.3d at 398. A right is clearly established if it would be clear to a reasonable officer that his/her conduct was unlawful in the specific context of the case. Saucier, 533 U.S. at 204, 121 S.Ct. 2151.

II.

It is now well established that deliberate indifference to the serious medical needs of a prisoner can rise to the level of a constitutional violation. See Estelle v. Gamble, 429 U.S. 97, 103-04, 97 S.Ct. 285, 50 L.Ed.2d 251 (1976). 2 A prisoner’s medical need is serious when it “has been diagnosed by a physician as requiring treatment” or is so obvious that a layperson would recognize the need for professional medical care. Monmouth County Correctional Institutional Inmates v. Lanzan, 834 F.2d 326, 346 (3d Cir. 1987). A plaintiff can establish deliberate indifference when the record would allow the fact finder to conclude that a prison official is subjectively aware of the risk of substantial harm to an inmate, but failed to respond. Farmer v. Brennan, 511 U.S. 825, 828, 114 S.Ct. 1970, 128 L.Ed.2d 811 (1994).

Officer Flaherty testified at the inquest that he knew that Meyers had fallen and that he (Flaherty) assumed that the cleaning materials Meyers requested were to clean the blood from Meyers’ cell. A.4. Two years later, at his deposition, Flaherty claimed that he assumed Meyers wanted the materials to mop water from his cell. Nevertheless, he also testified during that deposition that he would have called medical personnel if he had known that Meyers wanted to mop up blood. Id. As the Magistrate Judge notes in her Report and Recommendation, a fact finder could therefore readily conclude that “there was a lot of whatever substance Meyers was going to clean up to require the supplies Anderson brought to Meyers’ cell.” App. 21. The Magistrate Judge recognized that this “would have placed Flaherty on notice that something was seriously wrong with Meyers.” Id.

There is also testimony that Shon Ellis, a fellow inmate, told Flaherty that Meyers asked to go to the infirmary in the afternoon of May 26, and that Flaherty re *144 sponded: “F him. I asked him earlier did he want to go to medical and he refused so I’m not sending him no where now....” Id., at 6. That testimony, combined with Flaherty’s own testimony that Ellis did not tell him anything he didn’t already know during that conversation, could allow a jury to conclude that Flaherty knew that Meyers had injured his head to such an extent that he needed a mop and bucket to clean up all of the blood. Yet, when informed that Meyers wanted medical attention, Flaherty’s only response was “F him ... I’m not sending him nowhere now.”

In her thoughtful Report and Recommendation, the Magistrate Judge explained as follows in recommending that the District Court deny Flaherty’s claim of qualified immunity:

Meyers’ constitutional right to medical care for a serious medical need while incarcerated was clearly established at the time of Flaherty’s alleged conduct. See Farmer v. Brennan, 511 U.S. 825, 114 S.Ct. 1970, 128 L.Ed.2d 811 (1994); Estelle v. Gamble, 429 U.S. 97, 97 S.Ct. 285, 50 L.Ed.2d 251 (1976). Hence, the key inquiry for purposes of qualified immunity is whether Flaherty’s conduct was objectively reasonable; that is; whether a reasonable corrections officer in Flaherty’s situation could have believed that his conduct comported with established legal standards. Plaintiff has raised a genuine issue of material fact as to whether Flaherty was deliberately indifferent to Meyers’ serious medical needs. Consequently, a reasonable corrections officer could not believe that his actions comported with clearly established law while also believing that there was an excessive risk to Meyers and failing to adequately respond to that risk. Because there is a genuine issue of fact as to whether Flaherty was deliberately indifferent, he has not carried his burden to establish that he is entitled to qualified immunity. See Carter v. City of Philadelphia, 181 F.3d 339, 356 (3d Cir. 1999) (holding that if plaintiff succeeds in establishing defendants acted with deliberate indifference to plaintiffs constitutional rights, then defendant’s conduct was not objectively reasonable and qualified immunity defense is not available).

App. 25.

Of course, this record contains additional accusations and denials, as well as issues of causation. However, we need not explore them in order to resolve the one issue raised in Officer Flaherty’s appeal. Given the Magistrate Judge’s thoughtful analysis of the issue before us, nothing more needs to be said.

III.

Accordingly, we will affirm the District Court’s order denying summary judgment to Corrections Officer Flaherty on his claim of qualified immunity.