OPINION
T1 Plaintiffs Ginga M. and Charlie S. Arnold appeal the trial court's summary judgment order in favor of defendant David Grigsby, M.D., which determined that, pursuant to the generally applicable tolling statute, see Utah Code Ann. § 78-12-85 (2002),
1
the statute of limitations was not tolled by Dr. Grigsby's departure from the state of Utah and that the Arnolds claims were time-barred by the two-year statute of limitations contained in the Utah Health Care Malpractice Act (the Malpractice Act), see id. § 78-14-4(1)
2
We previously reversed the trial court's order, concluding that Dr. Grigsby's absence from the state did in fact toll the applicable statute of limitations. See Arnold v. Grigsby (Arnold I),
BACKGROUND 3
T2 On July 22, 1999, Dr. Gary White performed a colonoscopy on Gina Arnold at Uin-tah Basin Medical Center (UBMC). The next day, Gina began experiencing pain in her lower abdomen and sought treatment at UBMC's emergency room. Dr. White determined that Gina's colon was perforated, admitted her to the hospital, and prescribed treatment with antibiotics. Gina remained hospitalized for four days, after which Dr.
{3 Despite the antibiotic treatment, Gina's condition worsened, and on August 3, 1999, she was readmitted to UBMC, where Dr. White performed exploratory laparoscopic surgery. After Dr. White had commenced the surgery, Dr. David Grigsby entered the operating room and participated in the procedure. Dr. White's operative report indicated that he was the surgeon and that Dr. Grigs-by assisted him.
T4 In the week that followed, Gina had two more laparoscopic surgeries at UBMC, one performed by Dr. White on August 5, 1999, and another performed by Dr. Grigsby on August 11, 1999. 4 A day or two after the final laparoscopy, while discussing the possibility of Gina being transferred to the care of another physician or hospital, Dr. White asked Charlie Arnold: "Have you lost faith in me? You don't trust me?" The answer to those questions was apparently in the affirmative, and on August 16, 1999, Gina was transferred to St. Mark's Hospital in Salt Lake City for further treatment.
T 5 In September 1999, because Gina "just knew something hadn't happened right" with her treatment at UBMC, the Arnolds retained legal counsel. On November 16, 1999, the Arnolds' counsel sent UBMC a letter requesting Gina's medical records and stating that he represented Gina "relative to treatment she received following complications arising from an initial diagnosis and treatment of her for an intestinal condition by Dr. Gary White." The letter also stated that counsel was "still in the investigatory stage of our representation," investigating "the possibility of claims that may be filed in relation to her initial diagnosis and/or treatment." Eight months later, in July 2000, Dr. Grigsby departed the state, moving from Roosevelt, Utah, to Oneida, Tennessee.
1 6 On December 4, 2001, the Arnolds filed a Complaint and Jury Demand in district court. The complaint listed both Dr. White and Dr. Grigsby as defendants, but Dr. Grigsby was never actually served with the complaint, nor was he included in the preliti-gation process.
T7 In October 20083, the Arnolds deposed Dr. White. In his deposition, Dr. White testified that Dr. Grigsby became Gina's primary doctor upon participating in the August 3, 1999, laparoscopic procedure and ultimately was in charge of Gina's care; that Dr. White preferred to convert the August 8, 1999, surgery from a laparoscopic procedure into an open procedure, but Dr. Grigsby decided against it; and that although Dr. Grigsby was not physically present at the August 5, 1999, surgery, Dr. White performed the procedure that Dr. Grigsby directed, instead of a different procedure that Dr. White himself favored. Based in part on the information gleaned in Dr. White's deposition, the Arnolds filed an Amended Complaint and Jury Demand on August 6, 2004, which was served on Dr. Grigsby.
T8 At his deposition in May 2005, Dr. Grigsby disputed much of Dr. White's account as outlined at Dr. White's 2003 deposition, but he acknowledged that he had a number of conversations with the Arnolds in 1999 during the time Gina received treatment at UBMC. And in their depositions in August 2005, the Arnolds testified that while Gina was still at UBMC prior to being transferred to St. Mark's Hospital, they were aware of Dr. Grigsby's participation in Gina's medical treatment.
T 9 In September 2005, Dr. Grigsby moved for summary judgment on the ground that the Arnolds' medical malpractice claims were barred by the two-year statute of limitations, which had expired before the December 4,
10 In 2008, we reversed the trial court's order granting summary judgment in favor of Dr. Grigsby. See Arnold I,
the tolling statute suspends the running of the statute of limitations during the time a defendant is absent from the state if he has not appointed a Utah agent to receive service of process[,] ... even if the defendant is subject to Utah's jurisdiction and amenable to service of process under Utah's long-arm statute.
Id. In response, Dr. Grigsby sought a writ of certiorari, which the Utah Supreme Court granted. See Arnold v. Grigsby,
{11 In 2009, the Supreme Court reversed our decision, "conclud[ing] that the tolling provisions of section 78-12-85 do not apply to the Arnolds' medical malpractice action against Dr. Grigsby." Arnold II,
STANDARD OF REVIEW
112 Summary judgment may be granted only when there are no genuine issues of material fact and "the moving party is entitled to a judgment as a matter of law." Utah R. Civ. P. 56(c). "[In reviewing a grant of summary judgment, we analyze the facts and all reasonable inferences drawn therefrom in the light most favorable to the nonmoving party." DOIT, Inc. v. Touche, Ross & Co.,
ANALYSIS
113 "The ... Malpractice Act requires a patient to bring a claim for malpractice no more than two years after the patient discovers or should have discovered the injury." Daniels v. Gamma West Brachytherapy, LLC,
T14 At oral argument, both parties argued-and we agree-that the Utah Supreme Court's recent decision in Daniels v. Gamma West Brachytherapy, LLC,
T 15 The Daniels court concluded "that the trial court's jury instruction misapplied the ... Malpractice Act and our case law interpreting its discovery requirements." Id. 122. Indeed, the Supreme Court held that the Malpractice Act's "statute of limitations does not begin to run until a patient discovers or should have discovered his legal injury," id. 11, which "includes discovering the causal event of the injury," id. " 25 (emphasis added). Moreover, the Supreme Court emphasized that "the determination of when a plaintiff is aware of the causal fact turns on a jury's determination of when a plaintiff acting with reasonable diligence discovered or should have discovered which event might have caused his injury." Id. (emphasis in original). - Indeed, the Court observed, "[nlothing in the statute's language or our interpretation of the statute limits the discovery of an injury to merely suspecting negligence without identifying its source." Id. 1 27.
1 16 The Daniels court also considered this court's decision in McDougal v. Weed,
[Wlhen a patient has received multiple medical treatments or undergone numerous medical procedures, and subsequently suffers unforeseen complications or reactions, he may suspect negligence. This patient, however, has not discovered his legal injury because, while he is aware that he is injured, and even if he is aware that negligence may be the source, he has not sufficiently tied it to its source in a medical procedure. Therefore, we hold [that] ... while a patient may not be required to discover the specific individual responsible for his injury, he must discover the causal event before the statute of limitations begins to run.
Id. (emphases added). "With these concerns in mind, it follows that a patient must not only suspect negligence in a medical treatment, but must also suspect which treatment in particular implicates negligent care to avoid pursuing unfounded litigation." Id. " 30 (emphasis added).
117 The statute of limitations begins to run when a patient, exercising "reasonable diligence in investigating a suspected injury ... should have discovered his injury and its possible negligent cause." Id. 31. "Whether and when a patient should have discovered an injury and its cause is a fact-intensive question that requires a jury to determine, given the information available, whether the actions taken in response to an injury and the efforts extended to discover its cause were adequate."
5
Id. See Sevy,
£18 Initially, we note that much of the Arnolds' argument on appeal focused, for statute of limitations purposes, on the point in time when the Arnolds knew of Dr. Grigs-by's involvement in the alleged negligence. Under Damiels, however, the relevant date is not when the Arnolds learned the extent of Dr. Grigsby's general involvement in Gina's treatment but, rather, when they discovered the causal event culminating in Gina's legal
T19 Here, it is unclear that a specific, causal event of negligence was ever discovered. The Arnolds' original complaint, dated December 4, 2001, named both Dr. White and Dr. Grigsby as defendants and alleged negligence in the initial colonoscopy and subsequent treatments, including the various la-paroseopic procedures. However, no party has pointed to "which treatment in particular," id. €30, was negligent and culminated in Gina's legal injury.
1 20 At the earliest, negligence in this case occurred on July 22, 1999. However, because Dr. Grigsby was not involved in Gina's original colonoscopy, he most likely could not have been negligent in her treatment, culminating in a legal injury, until his participation in the August 3, 1999, laparoscopic procedure. Negligence also may have occurred, the Arnolds allege, on August 5, 1999, during the laparoscopy performed by Dr. White at the direction of Dr. Grigsby. Seemingly, Dr. Grigsby's only other significant involvement in Gina's care was the la-parosecopy he performed on August 11, 1999, the last treatment during which he could have been negligent. Dr. Grigsby's involvement, and therefore his potential negligence, can likely be narrowed down to having occurred between August 3 and August 11, 1999. However, narrowing down the time frame of the occurrence of alleged negligence is not determinative. The statute of limitations does not begin to run until the Arnolds discovered or should have discovered "the causal event of the injury." Id. 125.
1 21 In late 1999, the Arnolds consulted an attorney, who mailed a letter to UBMC on November 16, 1999, requesting Gina's medical records. Given that the medical records clearly state Dr. Grigsby's involvement in Gina's care, the Arnolds definitely knew or should have known, upon receipt of the medical records, 6 that any actionable negligence by Dr. Grigsby likely occurred between August 3 and August 11, 1999. But one cannot glean from the medical records alone any information indicating that any particular procedure, including any in which Dr. Grigs-by was involved during early August 1999, was negligently performed. Thus, review of the medical records did not permit the Ar-nolds to identify which procedure, under Daniels, was the triggering "causal event." Id. ¶ 29.
122 Of course, despite the arguments made by the parties on appeal, Damiels makes clear that this is, unlike most statute of limitations issues, ordinarily a jury question. See id. ¶31. The wisdom of this view is buttressed by the ambiguous facts of this case. - It is undisputed that the Arnolds knew that something was wrong shortly after Gina underwent the procedures at UBMC, but we are not prepared to say that the average layperson in the Arnolds' position would have known this was because a mistake was made or been able to identify the legal cause, or causal event, of Gina's injuries in the months following her treatment. Cf. USA Power, LLC v. PacifiCorp,
{23 To take the determination away from the jury, Dr. Grigsby had the burden of demonstrating as a matter of law that the Arnolds' complaint against him was time-barred when it was filed on December 4, 2001. See generally Utah R. Civ. P. 56(c). Dr. Grigsby has failed to make this showing
{24 Therefore, as in Damiels, the pivotal statute of limitations issue in this case presents a fact-sensitive question to be decided by a jury at trial. See Daniels,
CONCLUSION
125 Dr. Grigsby failed to demonstrate as a matter of law that the Arnolds' complaint was not timely filed. We reverse the trial court's grant of summary judgment in favor of Dr. Grigsby and remand for trial.
Notes
. The Legislature reorganized Title 78 of the Utah Code in 2008, resulting in the renumbering of this section to 78B-2-104. See Utah Code Ann. § 78B-2-104 amend. notes (2008). For consistency with the previous decisions in this case, we cite to the prior version of the statute.
. This section was renumbered in 2008 as section 78B-3-404. See Utah Code Ann. § 78B-3-404 amend. notes (2008). Again, for consistency with the earlier decisions in this case, we cite to the prior version of this statute.
. We recite the facts pertinent to the Arnolds' remaining issue on appeal in the light most favorable to the Arnolds. See DOIT, Inc. v. Touche, Ross & Co.,
. The record indicates that Dr. Grigsby did not physically participate in the July 22, 1999, colonoscopy nor the August 5, 1999, laparoscopy. Dr. Grigsby's actual hands-on involvement with treating Gina appears to be limited to the August 3, 1999, laparoscopy, during which he assisted Dr. White, and the August 11, 1999, laparoscopy, which he conducted alone. Additionally, there is no evidence to suggest that Dr. Grigsby was involved in Gina's treatment during the four-day hospitalization in which she was treated with antibiotics. The July 27 discharge summary recites, without elaboration, that "[it was Dr. Grigsby's opinion that the air should have stayed there for three to four days before it finally dissipated."
. The Daniels court further explained that a jury "cannot undertake such a fact-specific inquiry without being informed as to which event it is evaluating for whether the plaintiff was aware or should have been aware of what was the negligent cause of his injury." Daniels v. Gamma West Brachytherapy, LLC,
. The date on which Gina's medical records were received by her attorney is not in the record on appeal.
