It's Saturday morning and your child fell while playing in the backyard. He can't put any weight on his rapidly swelling ankle, and he is sweating and crying in pain. Should you head to the Emergency Department or Urgent Care? Show
If you have been in a similar situation and wondered which option is better, you are not alone. Although Mayo Clinic Health System has offered Urgent Care for more than 20 years, many people are confused about when to use it. Here are a few differences between Emergency Departments and Urgent Care clinics: Severity of health problemsAn Emergency Department treats life- or limb-threatening health conditions in people of all ages. It is the best option when you require immediate medical attention. Urgent Care is the middle ground between your primary care provider and the Emergency Department. If you have a minor illness or injury that can't wait until tomorrow, Urgent Care is the way to go. Also, it is a good option if you have illnesses or injuries without other symptoms, or if you do not have other underlying health conditions. For example, an earache can easily be treated in Urgent Care. However, if it is accompanied by a high fever (104 F or higher), or you have a history of cancer or are on immune-suppressing medication, it is important to have it checked out in the Emergency Department. Hours and staffEmergency Departments are staffed 24/7 with physicians, physician assistants, nurse practitioners and nurses trained in delivering emergency care. The team has quick access to expert providers in advanced specialties such as Cardiology, Neurology and Orthopedics. Emergency Departments also have the imaging and laboratory resources needed to diagnose and deliver care for severe and life-threatening situations. Typically, Urgent Care clinics are staffed with physician assistants, nurse practitioners and nurses. Although, some Urgent Care clinics have physicians on staff as well. Urgent Care providers can order basic labs and imaging tests, such as X-rays, to help them provide diagnoses and develop treatment plans. Urgent Care clinics have set hours and an established list of conditions treated. As a result, Urgent Care clinics often are less expensive and have shorter wait times than Emergency Departments. Here are examples of types of conditions treated in Urgent Care clinics and Emergency Departments:Urgent Care clinic:
Emergency Department:
Always call 911 and don't drive yourself to the Emergency Department if you are having difficulty breathing, shortness of breath, a life or limb injury, or signs of stroke or heart attack. Learn more about emergency and urgent care:
Graham King, M.D., is a Family Medicine physician in Mankato, Minnesota. Health Aff
(Millwood). Author manuscript; available in PMC 2012 Aug 6. Published in final edited form as: PMCID: PMC3412873 NIHMSID: NIHMS359490 Due to access barriers, Americans seek a significant amount of non-emergent care in emergency departments, with long waits to be seen. Retail clinics and urgent care centers
have emerged as alternative sites to the emergency department. We estimate that between 13.7 and 27.1 percent of all emergency department visits could be treated at one of these alternative sites with a potential cost savings of approximately $4.4 billion annually. The primary conditions that could be treated at these sites include minor acute illnesses, strains, and fractures. There is some evidence that patients can appropriately self-triage to these alternative sites. Due to long wait times for appointments, limited after-hours care at physicians’ offices, and other access barriers,(1–3) Americans seek a significant amount of non-emergent care at emergency departments (EDs). Patients who present for
problems that can be treated elsewhere constitute a significant fraction of ED visits.(4) Such patients may have lengthy waits in the ED,(5,6) which can lead to both
inconvenience and patients choosing to leave without treatment. While some studies find a small marginal cost of treating non-emergent conditions in the ED, others report that charges for non-emergent conditions are significantly higher in the ED than in other settings, which can increase patients’ out-of-pocket costs and creating added strain on national health care
spending(7–10). Over the last decade, the number of retail clinics (RCs) and urgent care centers (UCCs) has increased, and these sites can serve as alternatives for non-emergent care.(11–13) RCs are located in retail stores, are typically staffed by nurse practitioners, and treat a limited range of health conditions, such as pharyngitis and conjunctivitis.(12) An estimated 29 percent of the U.S. population lives within a 10-minute drive of an RC, although such clinics are less likely to be located in minority and low-income neighborhoods.(14,15) UCCs are most typically freestanding physicians’ offices with extended hours, onsite x-rays and laboratory testing, and an expanded treatment range, including care for fractures and lacerations.(13) There is limited evidence that care at these alternative sites costs less and is of comparable quality to that provided in the ED. (7,8,16) RCs, UCCs, and EDs share several relevant characteristics. They provide walk-in care focused on acute conditions and acute exacerbations of chronic conditions.(13) Nurse practitioners and physician assistants are the primary providers in RCs, and are also providers in UCCs, though to a lesser extent.(12,13) Many EDs utilize nurse practitioners and physician assistants in their ‘fast track’ areas to provide care for minor conditions, and approximately half of UCCs employ emergency medicine trained physicians.(17) The demographic mix of patients is similar at RCs and EDs.(11) However, EDs are never closed, see significantly higher-acuity patients, and under federal law, must provide a medical exam to all patients regardless of ability to pay. As a result, it is reasonable to investigate the extent to which these sites can substitute for one another. For any given patient, the possibility of safely substituting RC or UCC care for an ED depends on the severity of the condition, the equipment and level of provider training required to care for the patient, and the patient’s ability to self-triage to the most appropriate site. To date, however, there have been no detailed examinations of the overlap between care provided at the three care sites and the extent to which UCCs and RCs can potentially substitute for EDs in the provision of non-emergent acute care. In this paper, we address this question, comparing patient demographics, medical conditions treated, and medications prescribed at each site. METHODSDataRC data include 1.2 million visits to eight RC companies between inception of operations and summer 2008, omitting those visits for which we lacked final diagnosis (n=150,631). The dataset did not include drugs prescribed. Detailed information is available elsewhere.(7) UCC data come from visits between July 1 and December 31, 2007 to centers in 35 states using the same UCC-specific electronic medical record. Data were abstracted for a random sample of 1,263 visits, including demographic characteristics, primary diagnosis, prescribed medications, and whether the patient was referred to another provider. These data are not representative of visits to all UCCs, but, to our knowledge, are the largest, most representative sample to date. The abstraction was funded by the Journal of Urgent Care Medicine. ED visit data come from the 2006 National Hospital Ambulatory Medical Care Survey (NHAMCS), providing a nationally representative sample; additional details are available from the National Center for Health Statistics (http://www.cdc.gov/nchs/ahcd.htm).(18) We excluded visits for patients who were subsequently admitted to the hospital as being de facto inappropriate for care at an RC or UCC. Our analysis included the remaining 31,197 visits, representing an estimated 104 million visits nationally. Classification of diagnosis codes and prescribed drugsTo compare diagnoses across settings, we aggregated primary or first-listed ICD-9 codes into groups that are similar or require similar equipment for treatment.(7) We similarly defined categories for drugs prescribed in UCCs and EDs, first grouping drugs using the Multum therapeutic classification system (http://www.multum.com/Lexicon.htm) and then into larger categories. We identified the most frequently prescribed drugs and show data for categories that represent more than 0.5 percent of the drugs prescribed in UCCs. Emergency department visits that may be treatable elsewhereTo identify commonly-treated conditions, we included diagnoses seen at more than two percent of RC and UCC visits. We used an algorithm developed by Billings et al. to identify visits that could be treated in a primary care setting or are non-emergent, categories for which we assumed care could be provided outside the ED.(19,20) The algorithm does not classify trauma-related diagnoses, for which we estimated the impact of assuming either 25 or 50 percent could be treated at UCCs. For each condition commonly treated at an RC or UCC, we applied the algorithm to determine the proportion of ED visits that could likely be treated in each of these settings, and summed across all conditions. AnalysesThe patient visit was the unit of analysis. For NHAMCS data, we corrected for the complex sampling design. We used a Z-approximation with a Bonferroni correction for multiple comparisons to compare across sites; differences discussed in the text are statistically significant at p<0.05 or better. The online appendix includes more detailed methodological information. RESULTSPatient and Visit CharacteristicsExhibit 1 shows the patient and visit characteristics for all three sites of care. At all three care sites, most visits are by females, and more than two in five visits are for adults ages 18 to 44. Adults ages 65 and older account for a larger fraction of visits to EDs than to RCs, and children under age two are more frequently seen in EDs than in both RCs and UCCs. Exhibit 1Characteristics of Visits and Patients Seen in Retail Clinics
Approximately 17 percent of visits to EDs were made by patients who were uninsured, compared with approximately 26 percent of visits to RCs. Patients were referred to an ED or a physician’s office at 2.3 percent of RC visits, similar to the 2.2 percent of UCC visits resulting in referral to the ED. Conditions Treated at Retail Clinics and Urgent Care CentersThe most common diagnoses at RCs are for upper respiratory infections (60.6%), urinary tract infections (3.7%), preventive care (21.6%), and other minor conditions such as allergies, bug bites and rashes, and conjunctivitis (9.5%) (see Exhibit 2). These four major groups of diagnoses account for more than 95 percent of all RC visits. Exhibit 2Diagnoses Treated at Retail Clinics, Urgent Care Centers, and Emergency Departments
UCCs see a wider scope of conditions than RCs. While upper respiratory infections are still quite common among their patient population, such diagnoses constitute a smaller proportion of all visits compared to RCs (33.3 vs. 60.6 percent). Beyond the conditions typically seen at RCs, UCCs also see a significant proportion of visits related to musculoskeletal conditions (21.5 percent) such as strains, fractures, and joint and muscle pain. Dermatological conditions, such as burns and lacerations, are also commonly seen in UCCs (9.7 percent). Both UCCs and EDs have considerably fewer visits for preventive services than RCs (0.0 percent and 3.8 percent vs. 21.6 percent, respectively). The nine major groups of conditions shown in Table 2 account for 91 percent of all UCC visits. Prescription MedicationsMore than two in five prescriptions (41.5 percent) written at UCCs are for antimicrobials, including antibiotics, with approximately one in five (18.9) additional prescriptions written for central nervous system agents, most commonly including pain medications (see Exhibit 3). These proportions are approximately reversed in the ED, where 16.3 percent of medications administered or prescribed are for antimicrobials and 44.2 percent are for central nervous system agents (the large majority of which – 38.8 percent of all medications – are for analgesics). Similar proportions of respiratory agents are used in the two settings (12.1 percent in UCCs and 9.2 percent in EDs), and other medications are used in smaller proportions. Prescription data was not available in our retail clinics data. Exhibit 3Medications Prescribed at Urgent Care Center and Emergency Department Visits
Emergency Department Visits that Could be Treated at Retail Clinics or Urgent Care CentersExhibit 2 also shows the conditions commonly treated at RCs and UCCs – diagnoses that constitute two percent or more of all visits in each setting. Per the Billings algorithm, the large majority of visits for these conditions could be clinically managed outside the ED (range 66.7–95.7 percent). In keeping with the Billings algorithm’s identification of non-emergent and primary care treatable conditions, only 9.7 percent of ED visits for chronic obstructive pulmonary disease and asthma – typically more serious conditions - could be seen outside of the ED (data not shown). We estimate that 13.7 percent of all ED visits could be seen in an RC – that is, 13.7 percent of ED visits are for conditions commonly seen at RCs and per the Billings algorithm could be managed outside the ED. Restricting our calculation to ED visits that occurred only during hours when RCs and UCCs are typically open (9am–9pm Monday-Friday; 9am–5pm Saturday; 10am–5pm Sunday), we estimate that 7.9 percent of all ED visits can be seen at a RC. Further, we estimate that an additional 13.4 percent of ED visits could be seen at a UCC (8.9 percent when hours are restricted). Overall, a total of 27.1 percent of all ED visits could be managed at a RC or UCC (16.8 percent when hours are restricted). These estimates assume that 50 percent of ED visits for trauma-related conditions that are commonly seen in UCCs (strains, fractures, contusions, and lacerations) could be treated there. Lowering this assumption to 25 percent results in an estimate of 13.7 percent of all ED visits being potentially treatable elsewhere during hours that RCs and UCCs are typically open. DISCUSSIONWe identify a significant fraction of ED visits for non-emergent conditions that could be cared for in UCCs or RCs. Patients may go to an ED for these conditions because of difficulty obtaining accessible, affordable, convenient care for these conditions elsewhere.(1–3) We estimate that between 13.7 and 27.1 percent of all ED visits could potentially be seen at RCs or UCCs. Diverting these patients could potentially decrease their waiting time to be seen by a clinician, since many experience extended periods in ED waiting rooms. There are also potential savings associated with the use of RCs and UCCs. Prior studies have estimated RC and UCC costs at $279-$460 and $228–$414 less than ED costs, respectively, for similar cases.(7,8) Assuming the smallest of each of these savings and that 16.8 percent (our mid-point estimate) of the 104 million non-admitted ED visits in 2006 could be seen in one of these alternative settings, the potential savings to the health care system would be approximately $4.4 billion annually, or 0.2 percent of national health care spending. Our study has a number of limitations. While our ED data are nationally representative, our RC and UCC data come from limited sets of providers. No data were available regarding the proportion of trauma-related diagnoses that could appropriately be treated outside the ED; while we tested a range of assumptions to address this concern, it is only partly mitigated in our estimates. Our analysis also cannot account for the distance between the EDs at which patients sought non-emergent care and any available UCCs or RCs, which could have significant impact on their accessibility. Finally, our savings estimate is predicated three assumptions. The first is that all eligible patients would shift to alternative sites for non-emergent care, finding them accessible, affordable, and willing to provide care to them regardless of insurance status. Second, we assume that RCs and UCCs would be capable of providing care to a greatly increased number of patients. Since neither assumption is likely fully valid, our estimate represents an upper bound on potential savings. Countering this, our estimates also make the third assumption that we capture the full range of services that could be provided at RCs and UCCs in our definition of commonly-seen conditions. This is likely untrue, especially given recent expansions in scope of care at RCs (21), potentially biasing our estimates downward. The goal of this work was to estimate the fraction of ED visits that could be seen elsewhere. There are a number of caveats to be considered should policymakers seek to encourage patient use of alternative sites. First, policy levers to discourage non-emergent ED use may be problematic. While increased copayments can decrease ED use,(22) their spread has not deterred long-term increases in ED utilization. Another approach is to refer patients to an alternative site after they are triaged. One study found that 52 percent of eligible patients accepted a deferred appointment with a primary care physician,(23) but this requires the patient to make an additional visit after being seen in the ED, and most EDs will only make a decision to refer elsewhere after evaluation by a physician. Refusing ED services to patients with non-emergent conditions raises ethical concerns,(24) and some fraction of patients denied care may have urgent needs.(25) Second, there are outstanding concerns about diverting patients away from EDs. Though one study found comparable quality across the three settings,(7) more research is needed to ensure that equivalent quality is provided at RCs and UCCs. In addition, more rigorous assessments of patients’ ability to appropriately self-triage to the best site are needed. We found that both RCs and UCCs refer less than three percent of patients to other sites, and that the oldest and youngest patients – who are likely to need the most complex services and for whom acute illnesses are most likely to be serious – are more common among ED patients than in the other two settings. These findings indicate that patients are currently self-triaging in a manner that appropriately ensures safety, bringing the most complex and urgent conditions to the ED. However, self-triage might be problematic if larger numbers of patients use alternative sites. In addition, simply expanding the number of alternative sites or promoting their use will not ensure that patients will transfer their care. Third, there are limitations to realizing any savings estimates. If greater availability of alternative sites induces new demand for care, some or all savings could be offset. Similarly, any increase in reimbursement to RCs or UCCs will decrease savings. Finally, one driver of higher ED costs is that care for life-threatening conditions is expensive. If these costs are spread over a smaller number of total ED visits, per-visit ED costs will rise, decreasing aggregate societal savings. A continued increase in the number of ED visits for non-emergent causes is likely unsustainable in our current health care system. At the same time, there are calls for health system improvement that focus on increasing quality and patient-centeredness while holding organizations accountable for the cost and outcomes of care they provide. It is unclear what role might exist for alternative sites such as RCs and UCCs in such a framework. In an ideal world, patients would seek care for non-emergent conditions at their primary care office. While new initiatives such as medical home demonstrations and accountable care organizations (26,27) encourage primary care and seek to improve access, this seems unlikely to provide a widespread solution in the near term. Increasingly, acute care is provided outside of the primary care setting. Both the shortage of primary care physicians and the increased number of people likely to seek primary care as insurance coverage is expanded under the Affordable Care Act will likely contribute to worsening primary care access. Recent experience in Massachusetts indicates that such expansions are not likely to lead to a drop in low-acuity ED visits,(28) indicating a need to further investigate alternatives for providing non-emergent care. Supplementary MaterialAppendixNOTES1. Berry A, Brousseaus D, Brotanek JM, Tomany-Korman S, Flores G. Why Do Parents Bring Children to the Emergency Department for Nonurgent Conditions? A Qualitative Study. Ambul Pediatr. 2008;8(no. 6):360–367. 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How many patients an emergency clinic can handle in one day is an example of what?
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