IN THE SUPREME COURT OF THE STATE OF NEVADA

JENNIFER ALLISON; AND MICHAEL No. 79729 ALLISON, INDIVIDUALLY AND AS NATURAL PARENTS OF ISAAC EVERETT ALLISON, DECEASED, Appellants, vs. FILED DIGNITY HEALTH, D/B/A ST. ROSE DOMINICAN HOSPITAL-SIENA, A JUL 0 9 2021 FOREIGN NONPROFIT ELIZABETH A. BROWN CLOT S PREME COURT CORPORATION; AND DIGNITY BY HEALTH MEDICAL GROUP NEVADA, DEPUlY CLERK LLC, A NEVADA LIMITED LIABILITY COMPANY, Res s ondents.

ORDER OF AFFIRMANCE This appeal challenges a district court summary judgment in a medical malpractice action. Eighth Judicial District Court, Clark County; William D. Kephart, Judge. Reviewing de novo, Wood v. Safeway, Inc., 121 Nev. 724, 729, 121 P.3d 1026, 1029 (2005), we affirm.

Appellants first argue that they were entitled to present testimony on causation through their retained expert under the "loss of chance" doctrine. But appellants waived the loss of chance doctrine by failing to raise it below. See Old Aztec Mine, Inc. v. Brown, 97 Nev. 49, 52, 623 P.2d 981, 983 (1981) (holding that this court need not consider an argument not raised below). Because of this, the causation inquiry regarding their malpractice claim was limited to the injuries that resulted in death, and not on a reduced chance of survival. Compare Perez v. Las

'Pursuant to NRAP 34(f)(1), we have determined that oral argument is not warranted.

SUPREME COURT OF NEVADA

(0) 1947A 44101:4 02)- i9 717 Vegas Med. Ctr., 107 Nev. 1, 6, 805 P.2d 589, 592 (1991) (holding that under the loss of chance "doctrine, the injury to be redressed by the law is not defined as the death itself, but, rather, as the decreased chance of survival caused by the medical malpractice), with NRS 41A.100(1) (providing that, with limited exceptions, medical malpractice cases require expert testimony establishing "causation of the alleged personal injury or death"). As such, the expert's purported testimony regarding loss-of-chance would not satisfy the assistance requirement and is therefore inadmissible. See Hallmark v. Eldridge, 124 Nev. 492, 498, 189 P.3d 646, 650 (2008) (providing that an expert's testimony must assist the trier of fact in understanding the evidence or resolving a factual issue to be admissible). And appellants failed to demonstrate that their retained expert, a registered nurse, had "obtained the requisite knowledge, skill, experience, or training to identify cause of the injuries or death to be able to provide expert testimony on that issue.

Williams v. Eighth Judicial Dist. Court, 127 Nev. 518, 521, 262 P.3d 360, 362 (2011) (explaining the limited circumstances in which a nurse may testify as to medical causation); see also Adamson v. Bowker, 85 Nev. 115, 119-20, 450 P.2d 796, 799 (1969) (holding that evidence that would be inadmissible at trial is similarly inadmissible for purposes of summary judgment determinations). Based on the foregoing, the district court did not abuse its discretion in refusing to permit the nurse to testify as an expert. Hallmark, 124 Nev. at 498, 189 P.3d at 650 (reviewing decisions regarding admitting expert testimony for an abuse of discretion).

Next, appellants argue that the 33 treating physicians they disclosed as potential experts negate the district court's grant of summary judgment on the basis that appellants lacked any expert witnesses to support their claims. Appellants failed, however, to produce expert reports SUPREME COURT OF NEVADA 40) 1947A 4060. from these physicians and to demonstrate that the physicians formed their opinions during the course of treatment, making their testimony as experts inadmissible. See NRCP 16.1(a)(2) (2016) (providing the expert report requirements); FCH1, LLC v. Rodriguez, 130 Nev. 425, 433, 335 P.3d 183, (2014) (holding that treating physicians are exempt from the report requirement to the extent their opinions were formed during the course of treatment). The district court therefore did not abuse its discretion as to this issue either.

Appellants further argue their claim that respondents failure to staff the hospital adequately does not require expert testimony. We disagree. Adequate staffing ratios are "not within the common knowledge or experience of the jury," and thus, require expert testimony. SunBridge Healthcare Corp. v. Penny, 160 S.W.3d 230, 246 (Ct. App. Tex. 2005). We also disagree with appellants' contention that Szymborski v. Spring Mountain Treatment Center held that such determinations do not require expert testimony. 133 Nev. 638, 403 P.3d 1280 (2017). Rather, Szymborski simply held that expert testimony is not required where the reasonableness of a health care provider's actions are within the juror's common knowledge and experience. 133 Nev. at 642, 403 P.3d at 1285.

We also conclude that the district court did not otherwise err in granting summary judgment in favor of respondents. l3ecause appellants failed to provide admissible expert testimony supporting their direct malpractice claims against respondents, the district court properly dismissed these claims. See NRS 41A.100(1)-(2). And summary judgment on the claims against the defendant nurse, which appellants did not appeal, foreclosed any vicarious liability claims against respondents arising from her actions. See Restatement (Third) of Torts: Apportionment Liab. § 13

(2000) (explaining that a party is vicariously liable "only for the share of plaintiff s damages for which the tortious actor is held liable"). In addition, appellants failed to provide any evidence supporting their ostensible agency theory in their motion practice below. See McCrosky v. Carson Tahoe Reg7 Med. Ctr., 133 Nev. 930, 934, 408 P.3d 149, 153 (2017) (setting forth the relevant factual questions for ostensible agency); see also NRCP 56(c) (providing that, at the summary judgment stage, assertions must be supported by affidavits or declarations). We therefore ORDER the judgment of the district court AFFIRMED.2

, C.J.

Hardesty

cc: Chief Judge, Eighth Judicial District Court Eighth Judicial District Court, Department 19 Patrick N. Chapin, Settlement Judge Bighorn Law/Las Vegas Lewis Brisbois Bisgaard & Smith, LLP/Las Vegas Eighth District Court Clerk

2The Honorable Mark Gibbons, Senior Justice, participated in the decision of this matter under a general order of assignment.

SUPREME COURT OF NEVADA 0) 1947A 4241D