NURSES PROVIDING ANEsmESIA NOT A "LAUGHING" MATTER: WHY INDIANA SHOULD NOT OPT OUT OF FEDERAL PHYSICIAN SUPERVISION OF CERTIFIED NURSE ANESTHETISTS REQUIREMENTS Kyle K. Fairchild* I. INTRODUCTION ...........••..••••......•.....•••.....••.•..•••••.•..•••.....••..••..•.•..••......•.. 282 A. The Issue ................................................................................. 282 B. Roadmap ................................................................................. 284 II. HISTORY AND BACKGROUND OF CERTIFffiD REGISTERED NURSE ANESTHETISTS •....••••..•••....••••.••.•.••.•••••••••...••••...••....••••••.•.••••••••••.•.••.•••••.•••• 285 A. History and Development of the Nurse Anesthetist Practice .. 285 B. Educational/Certification Requirements and Statutory Recognition ................................................................................... 286 C. Reimbursement ofCRNA Service ........................................... 289 ill. ANALYSIS OF RECENT NURSE ANESTHETIST STUDIES ....................... 290 A. Anesthesiologist Direction and Patient Outcome ................... 290 B. Cost Effectiveness Analysis of Anesthesia Providers .............. 292 C. No Harm Found when Nurse Anesthetists Work Without Supervision by Physicians ............................................................ 296 N. OPT-OUT STATE REQUIREMENTS, STATUTES, AND REGULATIONS VERSUS CURRENT SIMILAR INDIANA LAW ............................................... 298 A. Opt-Out Requirements ............................................................ 299 B. Challenged State Regulations or Opt-Out Decisions ............. 300 1. State Law Challenges .......................................................... 300 C. Similarly Situated Opt-Out States Contrasted to Indiana ....... 306 1. Rural Setting and Hospital Analysis ................................... 306 2. Statutory or Code Regulation Comparison of Similarly Situated States .......................................................................... 307 V. PROBLEMS ARISING IF INDIANA WERE TO OPT OUT OF PHYSICIAN SUPERVISION ............................................................................................. 308 VI. SOLUTIONS AND CONCLUSION: KEEP THE STATUS QUO REGARDING SUPERVISION IN INDIANA .......................................................................... 309 * J.D. Candidate, 2012, Indiana University Robert H. McKinney School of Law; B.S.B.A., 2008, Xavier University. 282 INDIANA HEALTH LAW REVIEW [Vol. 9:1 I. INTRODUCTION Nearly a decade ago, Dr. Barry Gleimer, an orthopedic surgeon in New Jersey, performed arthroscopic knee surgery on a twenty-eight year old man.1 Arthroscopy is a common surgical procedure where incisions are made, and a pencil-sized camera is inserted through those incisions after utilizing local, regional, or general anesthesia? Shortly after Dr. Gleimer performed the knee arthroscopy, the presiding nurse anesthetist-who at first failed to notice the patient turning blue from lack of oxygen-struggled to insert a breathing tube and quickly sought help from a nearby anesthesi­ ologist.3 Due to the nurse anesthetist's inability to treat the patient during his desperate time, Dr. Gleimer's patient currently suffers from short-term memory loss.4 The resulting harm in the described procedure is conspicu­ ous; however, the medical knowledge disparity between certified registered nurse anesthetists (CRNAs) and anesthesiologists, in cases such as Dr. Gleimer's, is far more noteworthy than the memory loss itself. A. The/ssue Anesthesiologists and nurse anesthetists commonly work together in operating rooms to sedate patients and ease pain, but cooperation between the two groups ends once outside the hospital doors.5 For years, these two interconnected medical professions have fought a bitter political battle over who should be sedating patients, under whose supervision, and for what compensation. 6 The battle intensified when, just before his term ended in 2001, President Bill Clinton, whose mother coincidently served as a nurse anesthetist for thirty-five years, wanted to remove supervision require­ ments. 7 As a result, President Clinton approved a government rule giving more autonomy to nurse anesthetists.8 President Clinton's approval was in response to a 1997 proposal by the Health Care Financing Administration 1. Suzanne Sataline, Doctors Oppose a Nursing Push: New Jersey May Ease Seda­ tion Oversight, WALL ST. J. (Oct. 23, 2010), http://online.wsj.com/article/SB10001424052 7023043541 04575568093578513032.html. 2. Knee Arthroscopy, AM. ACADEMY OF ORTHOPEDIC SURGEONS, AAOS.COM, http:!/ orthoinfo.aaos.org/topic.cfm?topic=a00299 (last updated Mar. 201 0). 3. Sataline, supra note 1. 4. Sataline, supra note 1. 5. Personal Business; In This Doctor-vs.-Nurse Debate, Long, Deep Breaths, N.Y. TIMES (Oct. 8, 2000), http://www.nytimes.com/2000/l0/08/business/personal-business-in­ this-doctor-vs-nurse-debate-long-deep-breaths.h1ml. 6. Id.; Rhonda Rowland, U.S. Ruling Expected in Bitter Anesthesia Battle, CNN.COM (May 16, 2001 ), http://articles.cnn.com/2001-05-16/healtb/anesthesia.debate _l_ nurse­ anesthetists-physician-anesthesiologists-patient-safety? _s=PM:HEAL TH. 7. Todd S. Purdum, Virginia Clinton Kelley, 70, President's Mother, Is Dead, N.Y. TIMES, Jan. 7, 1994, at A22; Amy Goldstein, HHS Delays Rule on Anesthesia Oversight; Clinton Measure Gave Nurses Autonomy, WASH. PosT, May 18, 2001, at A29. 8. Purdum, supra note 7; Goldstein. supra note 7. 2012] PHYSICIAN SUPERVISION OF CERTIFIED NURSE ANESTIIETISTS 283 requesting that nurses be able to work by themselves, without doctor super­ vision, if allowed by state-specific law.9 Upon Clinton's departure from office, the Bush administration de­ layed the Clinton-approved nurse autonomy rule and planned to write a new rule reverting back to the requirement that nurse anesthetists could only administer anesthesia when supervised by a doctor.10 The possible rever­ sion sparked lobbying before Congress from former Senate majority leader, Robert J. Dole, and former Democratic representative, Tom Downey, on behalf of the anesthesiologists, while former House Speaker-designate, Bob Livingston, lobbied for the nurse-anesthetists.11 Ultimately, the anesthesi­ ologists' representatives convinced President Bush of the possible safety hazards and risks involved with nurses independently administering anes­ thesia.12 However, both Tommy G. Thompson, who was the Secretary of Health and Human Services, and President George W. Bush were strong advocates for state autonomy; therefore, the Bush administration crafted a supervision rule giving governors the option to avoid the supervision re­ quirement.13 The Centers for Medicare and Medicaid Services' (CMS) final rule that was published in the Federal Register in November 2001 now allows state governors to opt out of reimbursement for CRNA activity, permitting CRNAs to practice without supervision if the opt-out is consistent with state law.14 Thus, under the CMS amended opt-out rule, patients, like Dr. Glei­ mer' s arthroscopic knee patient, may not have physician supervised CRNAs in hospitals, ambulatory surgical centers, or critical access hospitals/5 which could lead to more severe injuries than just short-term memory loss due to the nurse and doctor knowledge disparity. Interestingly, recent studies have challenged the knowledge gap be­ tween anesthesiologists and nurse anesthetists by concluding that there is not a significant difference in the quality of care administered by CRNAs as compared to anesthesiologists.16 After evaluating six years of Medicare data, two analysts at the Research Triangle Institute, an independent, non­ profit research institute, recently recommended that nurse anesthetists 9. Goldstein, supra note 7. 10. Goldstein, supra note 7; Rowland, supra note 6. 11. Goldstein, supra note 7. 12. Interview with Barry Glazer, Anesthesiologist, St. Francis Hospital & Health Cen­ ters, in Indianapolis, Ind. (Jan. 28, 2011 ). 13. Goldstein, supra note 7. 14. Medicare and Medicaid Programs; Hospital Conditions of Participation: Anesthe­ sia Services, 66 Fed. Reg. 56,762, 56,763 (Nov. 13, 2001) (to be codified at 42 C.F.R. pts. 416, 482, 485). 15. Fact Sheet Concerning State Opt-Outs and November 13, 2001 CMS Rule, AM. AsS'N NURSE ANESTIIETISTS, http://www.aana.com/advocacy/stategovemmentaffairs/Pages/ Fact-Sheet-Conceming-State-Opt-Outs.aspx (last updated Sept. 201 0). 16. Editorial, Who Should Provide Anesthesia Care?, N.Y. TIMEs, Sept. 7, 2010, at A22. 284 INDIANA HEALTH LAW REVIEW [Vol. 9:1 should be able to administer anesthesia without any surgeon or anesthesiol­ ogist supervision.17 Jerry Cromwell, the study's co-author and health eco­ nomics fellow at' the Research Triangle Institute, said, "[t]his study shows that patient safety is not compromised by the opt-out policy. Using nurse anesthetists more broadly could save on health care costs because they typi­ cally earn less than anesthesiologists."18 The study's recommendation is based on a lack of evidence to confirm that opti:J;lf out of CRNA supervision has increased inpatient deaths or complications.1 Currently, sixteen states, including five of interest in this Note (Cali­ fornia, Colorado, Iowa, Washington, and Wisconsin), have elected to opt out of reimbursement from CMS for nurse anesthetist activity as of October 2010?0 As a result of the two most recent national studies dealing with CRNA safety and cost-effectiveness, state governors now have unequivocal evidence to persuade state medical and nursing boards to support a move to accept unsupervised nurses.21 Nevertheless, under the 2001 CMS amend­ ment, governors still need to discern and balance the quality of care given to anesthesia patients, cost-effectiveness of not having physician supervision, and patient access in rural settings.22 Even if these factors are appraised, and opting out decreases state budgets, which is presently necessary in many states, the preemptive steps may not be enough to relieve patients of the risk of death or grave harin when a nurse anesthetist's treatment ability is challenged like that of the nurse in the aforementioned anecdote. B. Roadmap This Note discusses the CMS final rule allowing for unsupervised nurse anesthetists to administer aneSthesia if their state of practice has opted out of Medicare reimbursement for such service. In order to facilitate a bet­ ter understanding of the nurse aneSthetist practice, Section ll explains the history and development of the certified registered nurse anesthetist prac­ tice, sets out the educational requirements necessary for certification as a 17. Brian Dulisse & Jerry Cromwell, No Harm Found When Nurse Anesthetists Work Without Supervision By Physicians, 28 HEALTH AFF. 1469, 1469 (2010}; Press Release, RTI International, Nurse Anesthetists Working Without Doctor Supervision Provide Safe Care (Aug. 3, 2010}, available at http://www.rti.orglpage.cfm?objectid=l9731DCD-C437- DCAA-5DE995F6C1D7E6FC. 18. RTI International, supra note 17. 19. Dulisse & Cromwell, supra note 17. 20. AM. AsS'N NURSE ANESTHETISTS, supra note 15. 21. Press Release, American Association of Nurse Anesthetists, Colorado Becomes 16th State to Opt Out of Physician Supervision Requirement for Nurse Anesthetist (Sept. 28, 201 0}, available at http:/ /www.aana.com/newsandjournai/News/Pages/09281 O-Colorado­ becomes-16th-State-to-Opt-Out.aspx. 22. See Press Release, American Association of Nurse Anesthetist, Iowa Becomes First State to Opt Out of Federal Anesthesia Requirement (Dec. 13, 2001), available at http://www.aana.com/news.aspx?id=714. 2012] PHYSICIAN SUPERVISION OF CERTIFIED NURSE ANESTIIETISTS 285 CRNA, examines how nurse anesthetists are dealt with in Indiana, and pro­ vides CRNA reimbursement basics. Section m analyzes the major, recent studies proposing eliminating supervision· of nurse anesthetists based on cost effectiveness and quality of care, while also providing the responses given by the American Society of Anesthesiologists to these. controversial studies. Section IV introduces the requirements for a state to opt out of nurse anesthetist supervision and compares opt-out states' .. administrative code or statutes dealing with anesthesia regulation to Indiana's correspond­ ing statutes. In particular, this section focuses on opt-out states' decisions that have been legally challenged for being inconsistent with state law, al­ lowing for a prediction of the consistency of Indiana regulations if they were challenged. Also, in addition to looking at state law consistency is­ sues, Section IV analogizes a CRNA scope of practice challenge to further highlight the disparity in anesthesiologist and nurse anesthetist training. Finally, Sections V and VI lay out problems that would arise if Indiana opt­ ed out of reimbursement and concludes Indiana should keep the status quo for nurse anesthetist supervision, or in the alternative should ramp up recognition or certification requirements of certified registered nurse anes­ thetists. II. HISTORY AND BACKGROUND OF CERTIFIED REGISTERED NURSE ANESTHETISTS In order to determine whether Indiana should opt out of nurse anesthe­ tist supervision, an understanding of the development of the profession it­ self is essential. This section explains the practice of CRNAs in general, how the practice of nurse anesthetists developed, what educational and ex­ perience requirements are necessary to become certified as a nurse anesthe­ tist, different methods of recognizing the nurse anesthetist practice, and, finally, offers rudimentary background on CRNA reimbursement. A. History and Development of the Nurse Anesthetist Practice Nurses, not anesthesiologists, were the first professional group to ad­ minister anesthesia in the United States, which led to the recogl!ition in the late 1800s of the first clinical nurse specialty, nurse anesthesia?3 For over 150 years, beginning with providing anesthesia to wounded soldiers during the Civil War, nurses have been administering anesthesia in the United States?4 In addition to caring for soldiers, the development of the nurse 23. AM. Ass'N NURSE ANEsTIIETISTS, NuRsE ANEsTHETIST: ADVANCING PATIENT SAFETY AND ExCELLENCE IN ANEsTHESIA (2010), available at http://www.aana.com/ aboutus/Documentsllegalissuesnap.pdf (citing the History of Nurse Anesthesia Practice sec­ tion of the compilation). 24. Certified Registered Nurse Anesthetists (CRNA.s) at a Glance, AM. Ass'N NURSE 286 INDIANA HEAL Til LAW REVIEW [Vol. 9:1 anesthetist occupation was also a response to surgeons' search for a solution to the high death rate during anesthesia in the late 1800s, as medical resi­ dents wanted to observe surgery, not give undivided attention to the admin- istration of anesthesia?5 · By 1908, Cleveland-based surgeon George Crile asked a nurse, Aga­ tha Hodgins, to become his anesthetist. 26 Hodgins became an expert at ad­ ministering anesthesia and began informally teaching others the anesthesia process, including English and French nurses who provided care to Allied Forces during World War 1.27 Upon Hodgins's return from the war, she established the Lakeside Hospital School of Anesthesia in Cleveland, Ohio, a center that sent graduates across the country to provide nurse anesthesia care.28 Soon thereafter, in 1931, Hodgins brought her alumnae to Cleve­ land and founded the National Association of Nurse Anesthetists, which in 1939 became the American Association ofNurse Anesthetists (AANA) and remains as such today. 29 At present, greater than ninety percent' of the na­ tion's nurse anesthetists0 of which over forty-one percent are men, are members of the AANA. 3 Later, in 1956, the official credential of certified registered nurse anes­ thetist was bom?1 Beirig recognized as one of the first specialties within nursing, CRNAs acted with a high level of independence, accountability and responsibility.32 According to the AANA, over 42,000 CRNAs across the country provide about thirty-two million anesthetics to patients each year.33 B. Educational/Certification ·Requirements and Statutory Recognition In order to become a CRNA and be able to provide anesthetics, special education and experience reqUirements must be met. 34 These requirements include:35 1) Earning a Bachelor of Science in Nursing or other appropriate hac- ANES1HETISTS, http://www.aana.com/ataglance.aspx (last visited Jan. 7, 2012). 25. AM. Ass 'N NURSE ANESTHETISTS, supra note 23 (citing the History of Nurse An­ esthesia Practice section of the compilation). 26. Id (citing the History of Nurse Anesthesia Practice section of the compilation). 27. See The History of Nurse Anesthetists, AM. Ass'N NURSE ANES1HETisTS, http://www.anesthesiapatientsafety.com/na_glancelhistory.asp (last visited Jan. 7, 2011 ). 28. AM. Ass'N NURSE ANESTHETISTS, supra note 23 (citing the History of Nurse An- esthesia Practice section of the compilation). 29. Id (citing the History ofNurse Anesthesia Practice section of the compilation). 30. AM. Ass'N NURSE ANESTHETISTS, supra note 24. 31. Id. 32. See Qualifications and Capabilities of the Certified Nurse Anesthetist, AM. Ass'N NURSE ANEsTHETISTS, http:/lwww.aana.com/ceandeducationlbecomeacma/Pages/ Qualifica­ tions-and-Capabilities-of-the-Certified-Registered-Nurse-Anesthetist-.aspx (last visited Jan. 8, 2012). 33. Id 34. Id 35. AM. Ass'NNURSB ANESTHETISTS, supra note 24. 2012] PHYSICIAN SUPERVISION OF CERTIFIED NURSE ANESTHETISTS 287 calaureate degree; 2) Holding a current license as a registered nurse; 3) Serving at least one year of experience as a registered nurse in an acute care setting or facility; 4) Graduating with at least a master's degree from a Council on Ac­ creditation of Nurse Anesthesia Educational Programs accredited nurse an­ esthesia educational program;36 5) Passing the national certification examination following graduation; and 6) Recertifying on a biennial basis, which requires a current nursing license, forty hours of continuing education, certification that the nurse has been engaged in anesthesia practice for the previous two years, and verifica­ tion of no other problems that could adversely affect their practice of anes­ thesia.37 Although these requirements are virtually standard nationwide, states may have different regulations or certifications that alter or eliminate such obligations.38 For example, Indiana and Michigan are the only two states that claim nurse anesthetists do not require additional certification in order to practice.39 In Indiana, a CRNA "is properly certified by successfully completing the certification examination administered by the Council on Certification of Nurse Anesthetists or its predecessor."40 The Indiana As­ sociation of Nurse Anesthetists interprets this certification provision as simply a definition, not a requirement to be additionally certified after pass­ ing the national examination by the Council on Certification of Nurse Anes­ thetists or other nationally recognized certifying body, as is required in all other states if a nurse wants to practice as a CRNA.41 Indiana nurse anesthetists are also distinct because "Indiana does not specify a specific method or process by which it authorizes nurse anesthe­ tists to practice,"42 whereas CRNAs are a type of"advanced practice nurse" or "advanced registered nurse practitioner" in the majority of states in this country.43 Under Indiana's Advance Practice Nurse Act, which deals with nurses obtaining additional skills through a specialized program to provide patient care in collaboration with the health care team, only nurse practi- 36. AM. Ass'N NURSE ANESTIIETISTS, supra note 32. 37. Id. 38. See generally Requirements, AM. Ass'N NURSE ANEsTHETISTS, http://www. aa- na.com/ceandeducationlbecomeacmaiPages/Requirements.aspx (last visited Jan. 8, 20 12). 39. Id. 40. IND. CODE§ 25-23-1-1.4 (2011 ). 41. AM. Ass'N NURSE .ANEsTIIETISTS, supra note 38. 42. AM. Ass'N NURSE ANESTHETISTS, STATIJTORY/REGULATORY NURSE ANESTHETIST REcOGNITION, available at http://www.aana.com/advocacy/stategovemmentaffairs /Documents/recognition. pdf. 43. Seeid. 288 INDIANA HEALrn LAW REVIEW [Vol. 9:1 tioners, nurse midwives, and clinical nurse specialists are mentioned.44 Be­ cause of their exclusion, nurse anesthetists believed the stricter collabora­ tion requirements required of advance practice nurses would not apply to the~ which would give them more autonomy to practice without supervi­ sion. 5 However, under the Indiana Code, a CRNA may only administer anesthesia "[i]f the certified registered nurse anesthetist acts under the di­ rection of and in the immediate presence of a physician.'.46 Therefore, even though Indiana has not statutorily established an advanced practice nurse label akin to most states, the scope of the nurse anesthetist practice in Indi­ ana is still collaborati,ve due to the supervision requirement. Although any type of physician may collaborate with nurse anesthe­ tists while the nurse sedates patients, much of the time CRNAs and anesthe­ siologists work closely together in operating rooms to administer anesthesia.47 The American Society of Anesthesiologists (ASA) ''believes that nurse anesthetists are qualified to perform some, but not all, of these services [that an anesthesiologist can perform], and onr under the supervi­ sion of a physician, preferably an anesthesiologist.'.4 This sentiment is often rooted in the differing educational and training requirements of the two disciplines, with anesthesiologists believing their profession is prepared to make sudden medical judgments that nurse anesthetists never learn in their curriculum.49 .While a nurse anesthetist must gain a master's degree that usually takes two to three years (in addition to four years of nursing undergraduate work), anesthesiologists must complete twelve years of for- mal schooling, including:50 · . four years of science-intensive pre-medical under­ graduate education; four years of medical school in which the individual gains knowledge of the funda­ mental science ofthe human condition (biochemistry, biophysics,· anatomy, pharmacology, physiology, and pathology) and receives extensive clinical instruction and experience in medical diagnosis and therapy; and four years of residency training that includes one year 44. 848 IND. ADMIN. CODE 4-2-l (2011); 848 IND. ADMIN. CoDE 3-3-1 (2011); 848 IND. ADMIN. CODE4-l-5 (2011). 45; Interview with Barry Glazer, Anesthesiologist, St. Francis Hospital & Health Cen- ters, in Indianapolis, Ind. (Jan. 28, 2011). 46. IND. CODE§ 25-23-1-30 (2011). 47. Personal Business, supra note 5; see RTI International, supra note 17. 48. AM. Soc'Y ANESTIIESIOLOOISTS, THE SCOPE OF PRACTICE OF NURSE ANESTHETISTS 1 (2004), available at http://www.asahq.org/For-Members/Advocacy/-/media/ For%20Members/Advocacy/Office%20ofYo20Govemmento/o20and%20Legal%20Affairsl nurseanesscope.ashx. 49. Seeid. 50. See AM. Ass'N NURSE ANESTHETISTS, supra note 32; AM. Soc'v ANEsTIIESIOLOOISTS, supra note 48, at 2. 2012) PHYSICIAN SUPERVISION OF CERTIFffiD NURSE ANEsTHETISTS of clinical medicine, two years of clinical anesthesiol- . ogy and one year of concentrated study and experi­ ence in connection with the most serious complications. 51 289 It is clear that educational requirements for anesthesiologists and nurse anesthetists differ, which is one reason why the "ASA opposes the inde­ pendent practice of nurse anesthetists and views legislation and regulations designed to grant independent practice authority . . . as efforts to confer a medical degree by political means rather than by educational means.',s2 Regardless of the ASA's contradicting view on nurse anesthetists' inde­ pendence, state governors are given the authority to "confer" more power to nurse anesthetists, despite educational differences, based on the November 2001 CMS rule. 53 C. Reimbursement ofCKNA Service Government programs, along with public and private health· plans4 provide reimbursement to CRNAs for performing anesthesia to patients.5 Medicare, a health plan for senior citizens and individuals with certain disa­ bilities, is the largest program for reimbursement directly to CRNAs.55 Medicare uses a formula to determine reimbursement amounts: the sum of base units (which describe the complexity of the anesthesia procedure) and time units (where fifteen minutes equals one unit) multiplied by a conver­ sion factor (in dollars).56 In addition to CRNA reimbursement, anesthesiol­ ogists can be paid under Medicare for directin' administration of anesthesia, but only when certain conditions are met. 5 Under the Tax Eq­ uity and Fiscal Responsibility Act of 1982 (TEFRA), an anesthesiologist must carry out the following conditions in each case in order to be reim- bursed under a claim for directing anesthesia:58 . 1) Performance of a pre-anesthetic examination and evaluation; 59 2) Preparation of an anesthesia plan;60 51. AM. SOC'Y ANESTHESIOLOGISTS, supra note 48, at 2. 52. /d. at7. 53. See American Association ofNurse Anesthetists, supra note 21; Hospital Condi­ tions of Participation: Anesthesia Services, 66 Fed. Reg. 56,762, 56,763 (Nov. 13, 2001) (to be codified at 42 C.F.R. pts. 416,482, 485) (citing the governor's ability to exercise the ex­ emption so physician supervision is not required). 54. AM. Ass'NNURSBANESTHETISTS, supra note 23 (citing Reimbursement ofCRNA Services section ofthe compilation). 55. Id (citing Reimbursement ofCRNA Services section of the compilation). 56. Id (citing Reimbursement ofCRNA Services section of the compilation). 57. /d (citing Reimbursement ofCRNA Services section of the compilation). 58. AM. Soc'y ANESTHESIOLOGISTS, supranote48, at9-10. 59. Id at9. 60. /d. 290 INDIANA HEALTH LAW REVIEW [Vol. 9:1 3) Personal participation in the most demanding parts in the anesthesia 1 . 1 . du . d 61 p an, most Important y m ction an emergence; 4) Assurance that a qualified anesthetist performed any part of the an­ esthesia plan not performed by himself or herself;62 5) Frequent monitoring of anesthesia administration; 63 6) Physical presence in case of emergency or need for immediate di­ agnosis;64 and 7) Provide post-anesthesia care. 65 Combining the reimbmsement of nurse anesthetists and the conditions for anesthesiologist payment, Medicare Part B reimburses in different ways.66 For "non-medically directed CRNA services," when an anesthesi­ ologist is not involved enough in a case to justifY payment for medical di­ rection, CRNAs are reimbursed one hundred percent of the Medicare fees according to the formula outlined above.67 When a physician fulfills the seven conditions under TEFRA, these so-called "medically directed CRNA services" are reimbursed according to the same Medicare formula, with fif­ ty percent of the fee going to the directing anesthesiologist and the remain­ ing fifty percent going to the CRNA. 68 When an anesthesiologist oversees multiple anesthesia cases, or ''medically supervised CRNA services," Med­ icare reimburses fifty percent of the fee to the CRNA and two or three base units to the anesthesiologist 69 If medically supervising, an anesthesiologist may be reimbursed for up to five simultaneous CRNA cases, as long as the seven TEFRA conditions are met. 70 ill. ANALYSIS OF RECENT NURSE ANEsTIIETIST STUDIES A. Anesthesiologist Direction and Patient Outcome The first important study of anesthesiology that is relevant to the com­ parison between anesthesiologists and nurse anesthetists was performed in 2000.71 The study compared outcomes of Medicare surgery patients whose anesthesia was performed, or medically directed, by an ·anesthesiologist to 61. !d. at 10. 62. Id 63. Id 64. Id 65. Id at9-10. 66. Tax Equity and Fiscal Responsibility Act of 1982, Pub. L. No. 97-248, 96 Stat. 324. 67. AM. Ass'NNURSE ANEsTHETISTS, supra note 23 (citing Reimbursement ofCRNA Services section of the compilation). 68. Id (citing Reimbursement ofCRNA Services section of the compilation). 69. Id (citing Reimbursement ofCRNA Services section of the compilation). 70. !d. (citing Reimbursement of CRNA Services section of the compilation). 71. Jeffi'ey H. Silber et al., Anesthesiologist Direction and Patient Outcomes, 93 ANESTHESIOLOGY 152, 152 (2000). 2012] PHYSICIAN SUPERVISION OF CERTIFIED NURSE ANESTHETISTS 291 outcomes that were not.72 The study sought to determine if elderly patients' general and orthopedic surgical outcomes differed based on anesthesiologist involvement in anesthesia delivery. 73 As mentioned above, when discuss­ ing reimbursement basics, in order to be directed, physicians or anesthesi­ ologists must fulfill the seven criteria that allow them to bill under Medicare Part B?4 The study included 194 430 directed and 23,010 undi­ rected cases in 245 Pennsylvania hospitals?~ The patient data studied was categorized into outcomes, which included death rate within thirty days of hospital admission, in-hospital complication rate (applying forty-one events defined by International Classification of Diseases), and the rate of death after complications (failure-to-rescue rate).76 In order to account for possi­ ble differences in hospital administration tactics and patient individuality, the study was adjusted using a list of eleven hospital and patient character­ istics that standardized results. 77 After analysis, the study found "higher mortality and failure-to-rescue rates for patients who underwent operations without medical direction by an anesthesiologist."78 As shown below, percentages of death, complication, and failure-to-rescue were all higher in the study's undirected cases?9 The unadjusted results, based just on patient outcomes alone, were as follows. 80 Importantly, medical direction did not explain adjusted complication rates in Medicare patients because these rates are inade