M.N. v. MultiCare Health Sys., Inc.

CourtWashington Supreme Court
DecidedJanuary 18, 2024
Docket101,537-2
StatusPublished

This text of M.N. v. MultiCare Health Sys., Inc. (M.N. v. MultiCare Health Sys., Inc.) is published on Counsel Stack Legal Research, covering Washington Supreme Court primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
M.N. v. MultiCare Health Sys., Inc., (Wash. 2024).

Opinion

FILE THIS OPINION WAS FILED FOR RECORD AT 8 A.M. ON JANUARY 18, 2024 IN CLERK’S OFFICE SUPREME COURT, STATE OF WASHINGTON JANUARY 18, 2024 ERIN L. LENNON SUPREME COURT CLERK

IN THE SUPREME COURT OF THE STATE OF WASHINGTON

M.N. and G.T., individually and on behalf of ) all others similarly situated, ) ) Petitioners, ) No. 101537-2 ) A.B. and W.N., individually and on behalf of ) En Banc all others similarly situated, ) ) Filed : ______________ January 18, 2024 Plaintiffs, ) ) v. ) ) MULTICARE HEALTH SYSTEM, INC., a ) Washington corporation, ) ) Respondent. ) )

OWENS, J.—A nurse employed by MultiCare Health System, Cora Weberg

(Nurse Weberg), improperly diverted injectable narcotics for her own use. She infected

some emergency department patients with hepatitis C and may have exposed many

more. MultiCare notified all patients who received injectable narcotics while Nurse

Weberg was on duty that they were potentially exposed. MultiCare encouraged these

patients to have their blood tested for hepatitis C, hepatitis B, and HIV (human M.N. & G.T. v MultiCare Health System, Inc. No. 101537-2

immunodeficiency virus). As a result of these tests, MultiCare determined that only

patients assigned to Nurse Weberg were actually at risk.

The patients brought a class action suit. They claim MultiCare failed to meet the

accepted standard of care in supervising and hiring Nurse Weberg. The trial court

divided the class into two groups: those who were assigned to Nurse Weberg and those

who were not. It then dismissed the claims of the second group. The trial court ruled

that legal causation was not satisfied because Nurse Weberg did not directly treat these

patients. The Court of Appeals affirmed. We reverse both courts and hold that legal

causation is satisfied. Both classes can proceed with their chapter 7.70 RCW claims.

FACTS AND PROCEDURAL HISTORY

MultiCare Health System operates Good Samaritan Hospital in Puyallup.

Clerk’s Papers (CP) at 1-2. In 2018, two patients who had previously received care at

Good Samaritan tested positive for hepatitis C, despite not having any risk factors for

the disease. CP at 84. Both patients had received intravenous injections of narcotics

from the same nurse—Nurse Weberg—in the hospital’s emergency department. CP at

143. Nurse Weberg was suspected of diverting drugs for her own use. CP at 110.

Drug diversion is a known problem in health care settings. CP at 520-32. Hospitals

usually develop policies and procedures to track drugs at risk of being diverted and

the personnel administering them. Id. The parties do not contest that Weberg

committed misconduct and likely caused the hepatitis C outbreak. CP at 143.

2 M.N. & G.T. v MultiCare Health System, Inc. No. 101537-2

After learning of Nurse Weberg’s misconduct, MultiCare sent a letter to all

2,762 patients who received injectable narcotics in Good Samaritan’s emergency

department while Nurse Weberg was on duty. CP at 462-63, 349. The letter stated,

“an employee in the Emergency Department may have exposed at least two patients to

Hepatitis C virus, causing them to become infected.” CP at 462. It offered

complimentary blood testing for hepatitis C, hepatitis B, and HIV to all letter

recipients and cautioned, “The only way to be certain you were not infected is to have

your blood tested.” Id. The letter also stated that patients may need to undergo

additional testing within six months to rule out infection. Id.

MultiCare sent the letter both to patients who were assigned to Nurse Weberg

and those who were not. CP at 462-63, 465-66, 468-69. Tacoma-Pierce County

Health Department (TPCHD) and the United States Centers for Disease Control and

Prevention (CDC) recommended testing for both groups of patients. CP at 75, 104.

The hospital internally designated patients assigned to Weberg as “high risk” and the

others as “low risk.” CP at 364-66. However, it sent the same letter to both groups.

CP at 462-66.

Overall, 1,863 people had their blood tested. CP at 85. The tests identified 11

more cases of hepatitis C. Id. All 13 patients who tested positive for hepatitis C had

been assigned to Nurse Weberg during their emergency room (ER) visit. CP at 365-

66.

3 M.N. & G.T. v MultiCare Health System, Inc. No. 101537-2

Procedural History

M.N., A.B., G.T., and W.N. brought this class action on behalf of all persons

who received the notification letter from MultiCare. CP at 7, 27-28. They alleged

negligent supervision and hiring under a theory of corporate negligence and under

chapter 7.70 RCW. CP at 298. Chapter 7.70 RCW provides a cause of action for

injuries resulting “from the failure of a health care provider to follow the accepted

standard of care.” RCW 7.70.030(1). The class claimed damages for “severe

emotional and mental anguish” and for “medical care, treatment, and services.” CP at

2, 12. We note that not all class members had their blood tested, and therefore some

patients experienced only emotional harm.

The trial court certified two classes of patients. The “Weberg Treatment Class”

consists of the 208 patients assigned to Nurse Weberg. CP at 322. The “General

Treatment Class” consists of the 2,554 patients who were not assigned to Nurse

Weberg. Id. Neither class contains individuals who were infected with the strain of

hepatitis C linked to Weberg. CP at 664 n.1.

MultiCare moved to dismiss the General Treatment Class’s claims on a motion

for summary judgment. CP at 325-45. It argued that the General Treatment Class

failed to prove legal causation. CP at 340. MultiCare said that because Nurse

Weberg did not treat this group, they did not experience harm “caused by” a

negligently supervised employee. Id. (emphasis omitted). Furthermore, it argued that

4 M.N. & G.T. v MultiCare Health System, Inc. No. 101537-2

this group could not prove they were ever at risk of exposure to the virus. CP at 336.

MultiCare urged the court to adopt a rule that would require proof of actual exposure

to a disease before plaintiffs can recover. CP at 332. The trial court granted

MultiCare’s motion, reasoning that imposing liability without actual exposure could

chill a hospital’s investigation of disease outbreaks. CP at 724. It dismissed the

General Treatment Class’s claims. CP at 660-61.

Division II affirmed the trial court’s dismissal in a divided opinion. The

majority held that the General Treatment Class did not establish legal causation. M.N.

v. MultiCare Health Sys., Inc., 23 Wn. App. 2d 558, 568, 519 P.3d 932 (2022). It held

that public policy weighed in favor of limiting liability when a hospital responds to a

disease outbreak. Id. This court accepted review. M.N. v. MultiCare Health Sys.,

Inc., 1 Wn.3d 1001 (2023).

ISSUES

(1) Do the General Treatment Class’s alleged injuries arise “as the result of

health care” as required for a chapter 7.70 RCW claim?

(2) Is legal causation met when a hospital’s negligent supervision and hiring

potentially exposes patients to a bloodborne pathogen, inducing fear and requiring

blood testing?

5 M.N. & G.T. v MultiCare Health System, Inc. No. 101537-2

ANALYSIS

This court is reviewing an order granting summary judgment and considers

questions of law de novo. Jones v. Allstate Ins. Co., 146 Wn.2d 291, 300, 45 P.3d

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