HA499 Unit 4 Capstone Literature Review Example

Why Scans Arrive Without Approval and What Might Stop It: A Capstone Literature Review Organized by Three Questions, Weighing a Thin Evidence Base on Hospital-Side Authorization Checks for Outpatient Advanced Imaging

[Student Name]

Purdue University Global

HA499: Bachelor's Capstone in Health Care Administration

Unit 4 Literature Review

[Instructor Name]

[Date]

The search counts are bracketed for the writer's own search; the review is a course model and its judgments about evidence strength are the writer's.

Purpose and Questions

The capstone problem is the postponement of outpatient advanced imaging at check-in because no authorization is on file. The review asks:

1. Why do scans reach the day of service without approval?

2. What interventions have been tried to close the gap?

3. How strong is the evidence that a hospital-side verification step works in a community hospital?

Search Method

Searches covered health services, health policy and radiology databases from [2005] to the present, using combinations of prior authorization, utilization management, imaging, radiology benefit management, denials and revenue cycle. Of [146] records screened, [18] were read in full. Sources were included if they described how authorization works in practice, measured its burden or delays, or evaluated a change. Most included sources are descriptive or policy analyses; very few are controlled evaluations.

How the Sources Were Weighed

Each source was graded by design. Large surveys and claims analyses were treated as strong for describing how common a problem is, but not for showing what would fix it. Single-site before-and-after reports were treated as weak for causation, because volume, staffing and insurer rules change at the same time. Commentary and policy documents were used for context and for describing rules, not as evidence of effect.

Question 1: Why Scans Arrive Without Approval

Authorization is a requirement set by insurers and carried out by providers. For advanced imaging, many commercial insurers have delegated it to radiology benefit management companies, whose call centers review requests against criteria; one early description found that such a program appeared to slow the growth of MRI, CT and PET use in a large commercial market (Levin et al., 2010). The program achieved its aim for the insurer by adding a step for the provider. That step is costly. A national survey of physician practices estimated roughly three weekly hours per physician spent on health plan contacts, with nurses and clerical staff spending many more, with a national time cost of tens of billions of dollars a year (Casalino et al., 2009). When a step is costly and shared between offices, it tends to be done late or not confirmed. Delays are common even when a request is made. In a large study of branded prescriptions that were initially rejected for prior authorization, only about a third were processed within a day (Wang et al., 2026). Imaging is a different service, but the pattern of waiting for an insurer's decision is similar. Commentary on authorization intermediaries describes how added parties and unclear responsibilities can delay care (Linfield & Moskatel, 2025). The literature explains why approvals go missing: the work is costly, it sits with an office that does not perform the scan, and decisions take time to travel back.

Question 2: What Has Been Tried

Insurer-side changes: Federal regulators adopted a rule in 2024 that requires certain payers, among them Medicare Advantage plans, state Medicaid and children's coverage programs and plans sold on the federal exchanges, to send decisions within set timeframes and to build electronic interfaces for authorization (89 Fed. Reg. 8758, 2024). These requirements should shorten waits for some patients, but they do not cover most employer plans and they do not make sure the hospital learns of the decision. Provider-side changes: Hospitals and practices have created centralized authorization teams, added electronic tools that check whether a service needs authorization and required an approval number before a scan is confirmed. Reports of such changes are mostly internal or presented at conferences, with before-and-after comparisons and few controls. Process redesign: Quality improvement methods, including process mapping, are used to find where tasks fall between roles; mapping is most effective when it involves the staff who do the work and leads to action (Antonacci et al., 2018).

Question 3: How Strong Is the Evidence?

The evidence that authorization requirements create burden and delay is reasonably strong: large surveys and claims studies show it. The evidence that a hospital-side check reduces postponements and denials is weak. Most reports are single-site, before-and-after, often in academic centers with larger staff, and rarely published in peer-reviewed journals. They suggest benefit but cannot rule out other causes, such as changes in insurer rules or volume. A community hospital differs from academic centers in staffing and in its share of orders from independent practices, which may make a hospital-side check both more needed and harder to carry out.

Gaps

No study found compares outcomes for patients whose scans were postponed with those whose scans were confirmed in advance. No study estimates how often postponed patients take their scan elsewhere. None examines how independent practices respond when a hospital asks them to confirm approvals sooner. The cost of a hospital authorization team relative to recovered revenue is rarely reported.

What Patients Experience

Few sources describe the patient's side directly. The local complaint log fills part of the gap: patients describe taking time off work, arranging rides and arriving to be told the scan cannot happen. Some describe paying out of pocket to avoid another delay. A review of the hospital's own complaints is therefore a necessary supplement to the published literature for this capstone.

Implications for the Capstone

1. The capstone should treat its intervention as a test, with careful before-and-after measurement and a comparison group if possible, such as orders from practices not yet included.

2. The intervention should assign clear ownership of the confirmation step, since unclear responsibility appears throughout the literature.

3. The financial case should not assume large effects, given weak evidence.

4. The new federal rule may shorten waits for Medicare Advantage patients, which could reduce the problem regardless of the intervention; the evaluation should separate the two.

Conclusion

The literature explains the problem well and the solution poorly. It shows why approvals go missing and why the burden falls on providers, but it offers little rigorous evidence that a hospital-side check works. That makes the capstone's careful design and measurement more important, not less. The next units build on that conclusion: the SWOT analysis weighs options with the evidence gap in mind, and the financial justification uses conservative assumptions about how many postponements a hospital-side check would prevent.

References

Antonacci, G., Reed, J. E., Lennox, L., & Barlow, J. (2018). The use of process mapping in healthcare quality improvement projects. Health Services Management Research, 31(2), 74-84. https://doi.org/10.1177/0951484818770411

Casalino, L. P., Nicholson, S., Gans, D. N., Hammons, T., Morra, D., Karrison, T., & Levinson, W. (2009). What does it cost physician practices to interact with health insurance plans? Health Affairs, 28(4), w533-w543. https://doi.org/10.1377/hlthaff.28.4.w533

89 Fed. Reg. 8758 (2024). Medicare and Medicaid programs; patient protection and Affordable Care Act; advancing interoperability and improving prior authorization processes (final rule).

Levin, D. C., Bree, R. L., Rao, V. M., & Johnson, J. (2010). A prior authorization program of a radiology benefits management company and how it has affected utilization of advanced diagnostic imaging. Journal of the American College of Radiology, 7(1), 33-38. https://doi.org/10.1016/j.jacr.2009.09.012

Linfield, R. Y., & Moskatel, L. S. (2025). Red-tape roadblocks: How prior authorization intermediaries delay optimal patient care. Annals of Internal Medicine, 178(1), 136-137. https://doi.org/10.7326/ANNALS-24-02781

Wang, Y., Levy, J. F., Mattingly, T. J., & Anderson, G. (2026). Prior authorization and associated delays and denials of branded medication dispensation. JAMA Health Forum, 7(4), Article e260760. https://doi.org/10.1001/jamahealthforum.2026.0760