Health care law (including regulatory and compliance issues, public health law, medical ethics, and life sciences), with digressions into constitutional law, statutory interpretation, poetry, and other things that matter
Friday, September 28, 2007
FDA's oversight of human-subject research: slim to none
Sunday, September 16, 2007
Health Lawyers Weekly, September 14
Top Stories
- CMS Denies New York’s Plan For Expanding SCHIP, Opposition To New Policy Mounts
- Aventis Pays Over $190 Million To Settle FCA Claims Alleging Fraudulent Drug Pricing And Marketing Practices
Current Topics include Antitrust, Business Transactions, Fraud and Abuse, Healthcare Access, Healthcare Spending, Hospitals and Health Systems, Insurance, Managed Care, Medical Malpractice, Medicare, Physicians, and Tax.
Vatican reaffirms stance on obligatory nature of ANH
This is from the recently posted "Responses to Certain Questions of the United States Confernce of Catholic Bishops Concerning Artificial Nutrition and Hydration," issues by the Congregation for the Doctrine of the Faith and, as if it needed to be said, "The Supreme Pontiff Benedict XVI, at the Audience granted to the undersigned Cardinal Prefect of the Congregation for the Doctrine of the Faith, approved these Responses, adopted in the Ordinary Session of the Congregation, and ordered their publication." The English translation is here, and the official commentary is here.
The big questions now are what will be the effect of these statements on health care decisions by Catholics and on the policies of Catholic healthcare institutions.
Insuring the uninsured: the right thing to do, but what's in it for me?
In short, altruism has its limits, as does the public’s appetite for trade-offs in their own lives for the sake of the uninsured, said Bill McInturff, a Republican pollster who worked for the insurance industry in 1993 and 1994. “Never, in my years of work, have I found someone who said, ‘I will reduce the quality of the health care I get so that all Americans can get something,’ ” he said. “Every time the debate reaches that point, it collapses.”
This time, candidates are emphasizing the benefits for people who already have insurance — lower costs for coverage, new programs to improve the quality of health care. “Everyone has to feel, at the end of the day, that they will get something,” said one Clinton adviser.
Expanding coverage to the forty-seven million Americans who now lack health insurance could greatly improve care for people who already are protected. Economists Mark Pauly of Wharton and José Pagán of the University of Texas-Pan American found that insured adults who live in communities with high uninsurance rates are more likely to face problems with access to care and quality than those who live in communities where more people are covered.
Thursday, August 30, 2007
Drake Law School looking for health law/insurance law teacher
DRAKE LAW SCHOOL seeks applications for a tenure-track position in the area of health law, insurance law and related fields commencing in the 2008-09 academic year. We are interested in both entry-level and experienced candidates with a J.D. degree and strong academic credentials who exhibit the ability to produce excellent scholarship and become outstanding teachers. Applicants who will contribute to the diversity of the faculty are particularly encouraged to apply. Drake University is an equal opportunity employer and actively seeks applicants who reflect the diversity of the nation. No applicant shall be discriminated against on the basis of race, color, national origin, creed, religion, age, disability, sex, gender identity, sexual orientation or veteran status.
Contact: Professor Cathy Lesser Mansfield, Chair, Faculty Recruitment Committee, Drake Law School, 2507 University Ave., Des Moines, IA 50311 or e-mail: cathy.mansfield@drake.edu.
Monday, August 27, 2007
Medicare beneficiaries lag in taking advantage of covered screenings and preventive care
CMS says Medicare is spending more on prevention efforts. The Wall Street Journal (8/26, McQueen) reported, "Medicare, the federal health-insurance program for older Americans, increasingly is paying for screening tests and immunizations that previously were not covered. But the vast majority of recipients are failing to take advantage, officials say." Less than 10 percent of Medicare recipients are "getting all the screenings and immunizations recommended by public health groups," according to the CMS. And, just over "a third of recipients didn't get a free flu shot in 2005, for example, even though elderly and immune-system-compromised patients are at high risk of death from the disease." In order to reverse this trend, "Medicare officials launched a bus tour of 48 states and more than 120 cities this summer, in conjunction with local officials, hospitals and elder-care groups. The tour is expected to wrap up this week." The Journal noted, "Until now, just five percent of Medicare spending has been for preventive services, officials say. But in recent years, as medical evidence has mounted about the cost-effectiveness of preventing diseases such as flu, diabetes and heart disease instead of treating them later, the U.S. has authorized more spending on screening tests and immunization."This caught my eye for a couple of reasons. First, it is scandalous that Medicare beneficiaries aren't getting the preventive services they need to fend off really serious and expensive health problems. Of course, the reason might be that the elderly haven't gotten the word about changes in Medicare coverage for such items. But it might also be because of other impediments such as limited transportation, the extra burden from multiplying trips to providers of different kinds to get the screenings done, etc. But at least CMS is focusing on the easiest-to-solve part of the problem by trying to do a better job of getting the word out.
Second is the statement that "medical evidence has mounted about the cost-effectiveness of preventing diseases such as flu, diabetes and heart disease instead of treating them later." This is certainly conventional wisdom, and this argument has an undeniable, intuitive appeal. But is it true?
There is evidence to support the proposition, at least within a limited time frame and for certain medical conditions and certainly for the individual who, as a result of the screening or the flu shot, didn't get sick. For example, as the New York Times reported [TimesSelect article: no link available] on January 11, 2006, in an article about diabetes prevention:
But what if avoiding the life-threatening acute medical condition simply permitted a large percentage of patients to survive for a life-time of care for their chronic conditions. Isn't it at least possible that the cost savings would eventually be exceeded by the costs associated with a longer life-time of care? That seems to have been the thrust of a March 16, 1997, article in the Times [also TimesSelect (no link)]:Insurers, for example, will often refuse to pay $150 for a diabetic to see a podiatrist, who can help prevent foot ailments associated with the disease. Nearly all of them, though, cover amputations, which typically cost more than $30,000.
Patients have trouble securing a reimbursement for a $75 visit to the nutritionist who counsels them on controlling their diabetes. Insurers do not balk, however, at paying $315 for a single session of dialysis, which treats one of the disease's serious complications.
While studies have shown that preventive care is generally good for your health, they have also shown that it often does not save money.
The central problem is that the early detection of many diseases, like high cholesterol and H.I.V. infection, is often followed by a lifetime of costly treatments and drugs. Expensive hospitalizations may only be forestalled. So in many cases, total medical costs actually rise.
''An awful lot of preventive care has no payoff economically -- it actually costs money,'' said Uwe Reinhardt, a health economist at Princeton University. ''If the [managed care] plans are doing it, they're doing it because they think it gives them a good image. A lot of this stuff is overhyped.''
That's the message, again, from the recent essay by David Leonhardt, "Free Lunch on Health? Think Again" (NY Times, Aug. 6, 2007; TimesSelect [no link]). Leonhardt notes that Rudy Giuliani and the three leading Democratic presidential candidates (Clinton, Edwards, Obama) are all promoting the idea that
[b]y practicing preventive medicine, doctors can keep many people from getting sick in the first place. Those who do end up with a chronic illness will be closely tracked so that fewer of them develop complications. These steps will result in less illness, which in turn will require less health care. With the savings, the country can then lower its medical bills or provide health insurance for the 40-odd million people who lack it -- or maybe even both.
As Hillary Clinton recently told The Atlantic, it's possible to ''save money
and improve quality and cover everybody.''
The hitch, according to Leonhardt, is that
[n]o one really knows whether preventive medicine will save money in the long run, let alone free up the billions of dollars a year needed to help pay for universal health insurance. In fact, studies have shown that preventive care -- be it cancer screening, smoking cessation or plain old checkups -- usually ends up costing money. It makes people healthier, but it's not free.
''It's a nice thing to think, and it seems like it should be true, but I don't know of any evidence that preventive care actually saves money,'' said Jonathan Gruber, an M.I.T. economist who helped design the universal-coverage plan in Massachusetts.
This is a tough idea to swallow because better health really does seem as if it should lead to lower medical bills. Indeed, if it were somehow possible to wave a wand and turn people into thin nonsmokers who remembered to take their statins, this country's health care expenses would fall.
But any effort to promote health has its own costs. Doctors and nurses need to spend time with patients to persuade them to change their behavior. (Ever tried to get someone to stop smoking or drinking?) For a new program to work, it has to reach people who are not being helped by whatever exists now -- and who thus will be among the most difficult and expensive patients to treat. The program would also have to treat a whole lot of people who never would have gotten sick.
Jay Bhattacharya, a doctor and economist at Stanford's School of Medicine, estimates that to prevent one new case of diabetes, an antiobesity program must treat five people -- ''not cheaply,'' he says. Along the same lines, Mr. Gruber found that when retirees in California began visiting their doctor less often and filling fewer prescriptions, overall medical spending fell. People did get sick more often, but treating their illnesses was still less costly than widespread basic care -- in the form of doctors visits and drugs. Louise Russell, an economist at Rutgers, points out that programs that focus on at-risk patients cost the least, but even they are rarely free.
As Dr. Mark R. Chassin, a former New York state health commissioner, says, preventive care ''reduces costs, yes, for the individual who didn't get sick.''
"But that savings is overwhelmed by the cost of continuously treating everybody else.''
The actual savings are also not as large as might at first seem. Even if you don't develop diabetes, your lifetime medical costs won't drop to zero. You might live longer and better and yet still ultimately run up almost as big a lifetime medical bill, because you'll eventually have other problems. That would be an undeniably better outcome, but it wouldn't produce a financial windfall for society.
Certainly, there are examples of preventive care that can save money. As Mrs. Clinton has noted, Safeway and a handful of other companies have held down health costs by emphasizing prevention. (This, of course, is only over the short term.) Perhaps the best examples fall under the category of what Dr. Brent C. James calls 'do it right the first time.''
Dr. James is an executive at Intermountain Healthcare, a network of hospitals in Utah and Idaho that has saved money in recent years by reducing hospital infections and drug errors. Intermountain hospitals have also largely stopped inducing child labor for the sake of doctors' or parents' convenience. The hospital induces birth only for medical reasons -- and the number of babies that spend time in the neonatal intensive care unit has fallen.
It's this last example that holds the real key to cutting medical costs. I realize many
people will react to the notion that preventive care usually costs money by saying, ''So what? We should do it anyway.'' And we should.But by describing it as an easy win-win solution, the presidential candidates are gliding over an important part of the issue. Preventive care saves real money only when it replaces existing care that is expensive and doesn't do much, if any, good. There are plenty of examples of such care -- from induced labor to many lumbar surgeries and cardiac stent procedures.
The problem is that the people getting this care typically don't consider it wasteful. We all like to believe that other people are the ones getting the unnecessary care. We, on the other hand, are probably not getting enough treatment.
Persuading people otherwise -- persuading them that basic care is sometimes cheaper and better -- will be difficult. Sometimes insurance plans will simply have to say no to questionable care, over the opposition of doctors' groups with a financial interest in the status quo. But it's the only way to ''save money and improve quality and cover everybody,'' as Mrs. Clinton says.
This is one of the best articles I've seen in the popular press that explores some of the variables in the "pay for increased coverage by increasing cost-effective primary and preventive care" argument. The problem is -- should we be surprised? -- much subtler and more difficult than our political candidates are making it sound.
Monday, August 13, 2007
Tax-exempt hospitals and "community benefit"
Sunday, August 12, 2007
Health Lawyers Weekly, August 10
This week's issue also has a good piece on the DC Circuit's en banc decision in the Abigail Alliance case (previously discussed here).
© 2007 AHLA. Reprinted with permission.Top Stories
- D.C. Circuit Says Terminally Ill Do Not Have Constitutional Right To Experimental Drugs
Terminally ill patients do not have a constitutionally protected right to assume the risk of taking experimental drugs that have passed early safety trials but have not yet been cleared by the Food and Drug Administration (FDA) as safe and effective, the D.C. Circuit held August 7 in an 8-2 ruling. Full Story- FTC Rules Evanston-Highland Merger Anticompetitive But Declines To Order Divestiture
In a unanimous ruling released August 6, the Federal Trade Commission (FTC) found the 2000 merger of Evanston Northwestern Healthcare Corp. (ENH) and Highland Park Hospital violated federal antitrust laws. But significantly, the Commission’s ruling, written by Chairman Deborah Platt Majoras, does not require ENH to divest its Highland Park acquisition as ordered by an agency Administrative Law Judge (ALJ) in 2005. Full StoryArticles & Analyses
- IRS Finalizes 403(b) Regulations, By Jay P. Turner, Hall, Render, Killian, Heath & Lyman, P.S.C.
- Labor Department Clarifies Application Of ERISA To 403(b) Plans, By William D. Roberts, Hall, Render, Killian, Heath & Lyman, P.S.C.
Current Topics
- Arbitration/Mediation
Mississippi High Court Finds Family Of Deceased Nursing Home Resident Not Bound By Arbitration Provision Signed By Relative- Criminal Law
Tenth Circuit Affirms Prison Sentence For Physician Who Committed Healthcare Fraud- Food and Drug Law
1. Federal Circuit Finds Federal Patent Law Preempts D.C. Law Regulating Drug Pricing
2. Dingell Introduces Bill Imposing User Fees On Food And Drug Imports
3. Lawmakers Pledge Work On FDA User Fee Reauthorization Legislation Will Continue In August
4. Grassley Questions FDA About Oversight Of Drugs Manufactured Abroad- Fraud and Abuse
1. Seventh Circuit Upholds Dismissal Of FCA Qui Tam Action Against Caremark Rx For Failure To Plead With Particularity
2. Update
3. OIG Approves Nevada, New York False Claims Acts- Health Information
Technology
DHHS Releases White Paper On Creating Public-Private AHIC Successor- Healthcare Access
Report Recommends Policy Changes To Further Expand Health Insurance Coverage To Young Adults- Insurance
Regence Blue Shield Settles Lawsuit Over High Performance Network- Long Term Care
Equitable Abstention Doctrine Supports Dismissal Of Consumer Lawsuit Against Healthcare Facilities For Alleged Violations Of Minimum Nurse Staffing Law- Managed Care
New York Governor Spitzer Signs Managed Care Reform Law- Medicaid
Eighth Circuit Upholds Denial Of State Request For Increase In Medicaid Payments
OIG Says New York Paid Over $17 Million In Improper SCHIP Payments- Medicare
1. Baucus, Grassley Introduce Bill Revamping QIO Program
2. U.S. Court In District Of Columbia Finds Pharmacy Associations Lacked Standing To Bring Lawsuit On Behalf Of Its Member Pharmacies- Physicians
New York Appeals Court Upholds Physician’s License Suspension Following Conviction For Violating Anti-Kickback Statute- PRRB
CMS Administrator Update- Tax
Wisconsin High Court Finds Nonprofit Medical Center Not Entitled To Property Tax Exemption On Its Day Care Facility
NY Times editorial on why the U.S. doesn't have the world's best health system
the U.S. health care system ranks last or next-to-last on five dimensions of a high performance health system: quality, access, efficiency, equity, and healthy lives. The U.S. is the only country in the study without universal health insurance coverage, partly accounting for its poor performance on access, equity, and health outcomes. The inclusion of physician survey data also shows the U.S. lagging in adoption of information technology and use of nurses to improve care coordination for the chronically ill.
With health care emerging as a major issue in the presidential campaign and in Congress, it will be important to get beyond empty boasts that this country has “the best health care system in the world” and turn instead to fixing its very real defects. The main goal should be to reduce the huge number of uninsured, who are a major reason for our poor standing globally. But there is also plenty of room to improve our coordination of care, our use of computerized records, communications between doctors and patients, and dozens of other factors that impair the quality of care. The world’s most powerful economy should be able to provide a health care system that really is the best.
Tuesday, August 07, 2007
DC Circuit (en banc) reverses panel decision in Abigail Alliance case
- AP story
- today's en banc ruling (including Judge Rogers' dissent)
- original 3-judge panel ruling
- Lyle Denniston's same-day analysis at SCOTUSBlog
Friday, August 03, 2007
Security issues for hospitals
Worth reading (as is the rest of this news-filled issue) . . . .Several incidents since the attacks of 9/11 have highlighted this risk. Consider
the following:
- November 2002: The Federal Bureau of Investigation (FBI) issued an alert to hospitals in San Francisco, Houston, Chicago, and Washington, D.C., warning of a vague, uncorroborated terrorist threat.
- August 2004: The FBI and U.S Department of Homeland Security (DHS) issued a nationwide terrorism bulletin that al-Qaeda may attempt to attack Veterans Affairs Hospitals as an alternative to more heavily guarded U.S. military institutions. The bulletin indicated that there had been persistent reports of suspicious activity at medical facilities throughout the United States.
- November 2005: Police in London, England arrest two suspected terrorists accused of plotting a bomb attack. One of the suspected terrorists was found to have a piece of paper with the words in Arabic, “Hospital = Target.”
- April 2005: FBI and DHS investigated incidents of imposters posing as hospital accreditation surveyors. The Joint Commission sent security alerts to the 5,000 medical institutions it accredits and warned them to be on the lookout for suspicious activity.
- July 2007: Eight individuals, all of them either physicians or other medical professionals associated with Britain’s National Health Service, were taken into custody in relation to attempted car-bomb attacks in London and a car-bomb attack at Glasgow Airport in Scotland. The FBI reported that two of the suspects contacted the Philadelphia-based Educational Commission for Foreign Medical Graduates to inquire about working in the United States as physicians.
Tuesday, July 31, 2007
Washington pharmacists sue to block "morning after pill" law
Washington pharmacists sue state over requirement of morning-after pill. The AP (7/28) reported, "Pharmacists have sued Washington state over a new regulation that requires them to sell emergency contraception, also known as the 'morning-after pill.' In a lawsuit filed in federal court Wednesday, a pharmacy owner and two pharmacists say the rule that took effect Thursday violates their civil rights by forcing them into choosing between 'their livelihoods and their deeply held religious and moral beliefs.'" The state of Washington "ruled earlier this year that druggists who believe emergency contraceptives are tantamount to abortion cannot stand in the way of a patient's right to the drugs." However, the "state's Roman Catholic bishops and other opponents predicted a court challenge after the rule was adopted, saying the state was wrongly forcing pharmacists to administer medical treatments they consider immoral."
Transplant surgeon charged in patient death
Monday, July 30, 2007
Medical tourism: Mexico for cost, quality, access
This article addresses the unique legal, policy, and ethical questions that arise when patients travel to foreign jurisdictions for medical care. A growing number of patients are leaving the United States, and employers, insurers, and even government payors are beginning to explore whether they can reduce spending by utilizing hospitals and physicians in developing countries. Because this is a dramatic leap, it has generated countless media stories, and has drawn attention from the WHO, WTO, World Bank, and U.S. Senate - many of which believe so-called medical tourism may transform health care here and abroad.
Despite this attention, the market is developing independently of lawmakers and regulators. This is troubling because patients are effectively waiving their rights and benefits in the U.S. to seek medical care in countries that may not grant them remotely similar protections.
This article assesses the risk-benefit calculus for patients and payors entering the global patient market by examining how the market may affect health care costs, quality, and access - the three canonical themes of health care. Using this framework, I consider several policy responses, such as regulating patient travel, regulating referral networks, and regulating employers and insurers. Relying on previous regulatory efforts in analogous areas, I criticize some responses as either impractical or foreclosed by current constitutional doctrine governing the rights to travel and free speech. Instead, I propose that we build on existing consumer protection laws, expand licensing regimes, and recalibrate existing schemes that may unfairly allocate the risks and benefits. I also analyze the feasibility of public and quasi-public multilateral responses.
The underlying goal of this article is to examine how globalization is fundamentally changing health care. Medical tourism is both a symptom and a solution to what ails the U.S. health care system, and the issues it presents may portend future challenges.
Wednesday, June 27, 2007
States get health care report card from Commonwealth Fund
- there are wide variations among states in the five dimensions;
- higher quality does not translate into higher costs;
- even in the “best” states, performance does not meet optimal standards;
- From the report: “If all states could approach the low levels of mortality from conditions amenable to care achieved by the top state, nearly 90,000 fewer deaths before the age of 75 would occur annually,” it said.
- Similarly, if all states reached the low levels of potentially preventable admissions and readmissions, hospitalizations could be reduced by 30% to 47% and save Medicare $2 billion to $5 billion each year.
I am not quite sure exactly how this is going to work, but I am considering using the Commonwealth Fund site for the first-day reading assignment in Health Law this fall, with period visits back to the site as we make our way through the themes of cost, quality, and access in the course.
Monday, June 25, 2007
AMA urged to oppose retail health clinics
Sunday, June 24, 2007
Health Lawyers News, June 22
Table of Contents © AHLA, 2007. Reprinted by permission.Top Stories
- OIG Finds Sale Of Part Of Physician-Owned ASC To Hospital Could Trigger Sanctions. The sale of part of an ambulatory surgery center (ASC) to a nonprofit hospital could potentially generate prohibited remuneration under the Anti-Kickback Statute and could lead to the imposition of administrative sanctions, according to Department of Health and Human Services Office of Inspector General (OIG) Advisory Opinion No. 07-05 posted June 19. Full Story
- President Bush Vetoes Stem Cell Bill, Calls For Expanding Alternative Research. President Bush vetoed June 20 a bill (S. 5) aimed at expanding research opportunities on embryonic stem cells. The measure cleared by a vote of 247-176 in the House and 63-34 in the Senate, short of the two-thirds majorities needed to override the veto. Full Story
Articles & Analyses
- Impact Of IRS’s Draft Redesigned Form 990 On Tax-Exempt Healthcare Organizations, By James R. King and Gerald M. Griffith, Jones Day
- Physician Quality Reporting Initiative Begins July 1, 2007, By Timothy J. Cahill, Porter Wright Morris & Arthur, LLP
Current Topics
- Antitrust
1. DOJ Reaches Settlement With Federation Of Physicians And Dentists Resolving Allegations Of Antitrust Violations
2. Illinois AG Alleges Clinics Conspired To Turn Away Medicaid Patients In Effort To Increase Reimbursement Rates- Criminal Law
Sixth Circuit Upholds Medicare Fraud Convictions, But Remands For Evidentiary Hearing On Documents Withheld By Government- ERISA
U.S. Court In Texas Remands Hospital's Action Against Managed Care Firm To State Tribunal, Finding ERISA Did Not Completely Preempt Claims- Food and Drug Law
1. U.S. Court In New York Upholds Plavix Patent, Enjoins Marketing Of Generic
2. U.S. Court In Minnesota Allows Product Liability Claims Against ICD Device Manufacturer To Proceed To Trial- Fraud and Abuse
1. Update
2. D.C. Circuit Finds Renal Physicians Association Lacks Standing To Bring Lawsuit Challenging Stark Safe Harbor Rule
3. OIG Withdraws Proposed Rule On Exclusion Authority For Entities Submitting Claims Containing Excessive Charges
4. OIG Approves Texas’ False Claims Act- Healthcare Access
Study Finds 689,000 Low-Income Children Eligible For SCHIP, DHHS Says- Healthcare Spending
Senate Budget Panel Considers Options For Controlling Healthcare Costs- Hospitals and Health Systems
1. Grassley Urges CMS To Collect Better Data From Hospitals On Uncompensated Care
2. Baucus Questions CMS About Standards Of Safety And Care At California Hospital- Insurance
Connecticut Appeals Court Finds Liability Insurer Obligated To Cover Claim Made During Required Extension Period- Medicaid
CMS Releases Timeline For Implementing New AMP-Based FULs For Medicaid Prescription Drug Reimbursements- Medical Malpractice
Florida Appeals Court Finds Expert Opinion That Surgery Unnecessary Was Sufficient To Create Triable Issue- Medicare
1. Health Insurers Agree To Suspend Marketing Of Medicare PFFS Plans
2. MedPAC Recommends Ways To Improve Efficiency In Medicare
3. U.S. Court In New Jersey Refuses To Reconsider Its Previous Decision Affirming Finding That Provider Was Overpaid By Medicare
4. Baucus, Grassley Oppose Speculative Cuts In Proposed Medicare Payment Rule
5. Medicare To Expand Testing Of Personal Health Records Tools
6. OIG Finds Medicare Beneficiaries Have Broad Access To Retail Pharmacies That Participate In Medicare Part D Program
7. CMS Extends Timeline For Publication Of Provider Appeals Rule
Study Examines Impact Of Medicare Part D On Nursing Homes And LTCPs- News in Brief
1. CHA Releases Draft "Vision" For Healthcare Reform
2. CMS Enhances Hospital Compare Website
Wednesday, June 20, 2007
Bush vetoes stem-cell-funding bill
- S. 5, the “Stem Cell Research Enhancement Act of 2007"
- President's veto message
- President's comments about his veto
As predicted, Bush made adult-stem-cell research the linchpin of his argument.
Amazing. Or not.
Tuesday, June 19, 2007
New Orleans grand jury moving in on Memorial Medical Center doctor
(CNN) -- Two nurses accused in the post-Katrina deaths of four patients at New Orleans' Memorial Medical Center have been offered immunity to testify before a special grand jury, sources close to the investigation tell CNN.
Sources also told CNN the grand jury has been told as many as nine patients may have died after being administered what Louisiana's attorney general called a "lethal cocktail" of medications by hospital staff.
Family members said staffers used the drugs to kill patients so caregivers could flee appalling conditions inside the hospital after the storm.
Dr. Anna Pou and nurses Cheri Landry and Lori Budo were arrested in July 2006 after a 10-month investigation. Louisiana Attorney General Charles C. Foti charged them with second-degree murder.
Sources close to the investigation told CNN the two nurses are expected to testify before the grand jury in the next two weeks, which could signal a possible wrapping up of the case. It could also signal the main target of the investigation is Pou, a physician who was under contract with Memorial Medical Center when Katrina struck.