When the Hospital Is Full: A Smarter Approach to Caring for Medicine Patients Boarding in the ED Can hospitalists improve care before the patient ever reaches an inpatient bed?

The patient has been evaluated in the emergency department.

The decision has been made:

Admit to medicine.

But there is a problem.

There is no inpatient bed.

The patient remains physically in the emergency department—sometimes for hours.

The traditional response is often to focus primarily on finding the patient a bed.

But perhaps hospitalists should ask a different question:

If the patient is already admitted, why should inpatient care wait for the inpatient room?

Emergency department boarding is increasingly a hospital-wide patient-flow problem rather than simply an emergency-department problem.

One potential strategy is to bring elements of hospital medicine directly to admitted patients while they remain in the ED.

The goal is not to make boarding acceptable.

The goal is to make the period of unavoidable boarding safer, more organized, and more clinically productive.

What Is Emergency Department Boarding?

Emergency department boarding generally refers to patients who have been admitted to the hospital but remain in the ED while waiting for an inpatient bed.

These patients are no longer primarily undergoing an emergency evaluation.

A disposition decision has already been made.

They need inpatient care.

But the physical location where that care normally occurs is unavailable.

That creates an important mismatch:

The patient’s clinical status has transitioned to inpatient care, but the patient’s location has not.

Why Does ED Boarding Happen?

Boarding is often described as an emergency-department crowding problem.

But its causes frequently exist elsewhere in the hospital.

Potential contributors include:

• High hospital occupancy
• Delayed discharges
• Limited inpatient beds
• Nursing staffing constraints
• Environmental-services delays
• ICU capacity
• Post-acute placement delays
• Skilled nursing facility availability
• Transportation delays
• Diagnostic bottlenecks
• Inefficient patient flow

This is why simply asking the ED to “move patients faster” rarely solves the underlying problem.

For a broader look at the downstream causes of capacity constraints, read Delayed Hospital Discharges: Hidden Causes, Rising Costs, and What Healthcare Leaders Can Do.

Boarding Is a Hospital Problem

Once an admitted patient is waiting for a hospital bed, responsibility for the problem should not fall exclusively on emergency medicine.

Boarding affects:

• Emergency physicians
• Hospitalists
• Nurses
• Consultants
• Case managers
• Bed-management teams
• Hospital administrators
• Patients waiting in the ED
• Patients waiting to enter the ED
• Ambulance systems

A patient occupying an ED treatment space because no inpatient bed is available reduces emergency-department capacity for the next patient.

The consequences can therefore extend beyond the individual boarded patient.

Why Boarding Matters

Research has associated prolonged ED boarding with adverse outcomes in some settings.

Studies have reported associations involving:

• Longer hospital length of stay
• Mortality
• Delays in care
• Patient-safety concerns
• Clinician workload
• Patient experience
• Hospital crowding

However, the literature is heterogeneous.

Not every study has found the same outcomes, and observational associations should not automatically be interpreted as proof that boarding itself caused the outcome.

The appropriate conclusion is more measured:

Prolonged boarding is an important marker of hospital-system strain and may expose patients to additional clinical and operational risks.

What Happens to the Patient While Waiting?

Consider a patient admitted with:

• Pneumonia
• Heart failure
• Cellulitis
• Acute kidney injury
• COPD exacerbation
• Hyponatremia
• Diabetes
• Urinary infection

The decision to admit may have been made hours ago.

But important inpatient work remains.

Someone still needs to:

• Reassess the patient
• Review laboratory trends
• Review imaging
• Reconcile medications
• Adjust antibiotics
• Manage fluids
• Manage diuretics
• Address glucose
• Follow electrolytes
• Communicate with consultants
• Plan discharge
• Discuss care with the patient and family

Moving the patient upstairs does not magically initiate these tasks.

They can potentially begin while the patient remains in the ED.

The Key Idea: Start Inpatient Care Before the Inpatient Bed Arrives

This is the central operational opportunity.

Once the decision to admit has been made, hospitals can consider transitioning the patient from:

waiting for inpatient care

to

receiving inpatient care while waiting for an inpatient bed.

That distinction can fundamentally change how boarding is managed.

Rather than treating boarding time as clinically inactive waiting time, hospitals can use it to advance the patient’s care.

What Is a Hospital Medicine ED Boarder Service?

One approach is a dedicated hospital-medicine service responsible for admitted medicine patients who remain in the ED.

Depending on the hospital, the team might include:

• Hospitalists
• Physician assistants
• Nurse practitioners
• Nurses
• Pharmacists
• Case managers
• Social workers

The precise structure can vary.

The core principle is:

The location of the patient should not determine whether hospital-level care progresses.

What Does the Evidence Say?

A study published in the Journal of Hospital Medicine evaluated a hospital medicine ED boarder service at a large urban academic medical center.

The study included general-medicine patients admitted through the ED.

Patients were divided into:

• Nonboarders
• Boarded patients covered by the hospital-medicine ED boarder service
• Boarded patients not covered by the service

The hospitalist-led team provided ongoing care to admitted patients while they waited for inpatient beds.

Among boarded patients, those covered by the hospital medicine service had a shorter median hospital length of stay than boarded patients who were not covered.

The study was observational.

Therefore, it cannot prove that the hospitalist service itself caused the reduction in length of stay.

But the findings support an important operational hypothesis:

Advancing inpatient care during boarding may reduce otherwise lost clinical time.

Another Hospitalist-Led Boarding Model

Another hospitalist-led pilot focused on observation patients boarding in the ED.

During the pilot, 175 patients were managed by the hospitalist team.

The intervention group had shorter average hospital stays and lower direct costs than the comparison group.

Again, these findings should be interpreted within the limitations of the study design.

But they reinforce the concept that hospitalists can potentially play a useful role in managing patients before an inpatient bed becomes available.

What Could Hospitalists Actually Do for Boarded Patients?

A hospitalist-led boarding strategy should involve more than simply writing an admission note.

The objective should be to move the patient’s entire hospitalization forward.

1. Reassess the Diagnosis

The ED diagnosis is often provisional.

Hospitalists can reassess:

• Does the working diagnosis still make sense?
• Are important alternatives being considered?
• Have new laboratory or imaging results changed the picture?
• Is the patient improving or deteriorating?

This creates continuity between emergency evaluation and inpatient management.

2. Optimize Medications

Medication reconciliation and treatment review can begin immediately.

Hospitalists can address:

• Home medications
• Duplicate medications
• Renal dosing
• Anticoagulation
• Antibiotics
• Insulin
• Diuretics
• Antihypertensives
• Potentially unnecessary medications

Waiting for an inpatient bed is not a clinical reason to postpone medication optimization.

3. Review Antibiotics

Patients admitted with suspected infection may have received empiric antibiotics in the ED.

During boarding, clinicians can reassess:

• Indication
• Spectrum
• Dose
• Renal adjustment
• Culture results
• Microbiology history
• Duration
• Source control

For patients with sepsis, see 2026 Surviving Sepsis Campaign Guidelines: What Every Hospitalist Needs to Know.

4. Reassess Fluids and Volume Status

A fluid strategy appropriate during initial emergency stabilization may not remain appropriate hours later.

Hospitalists can reassess:

• Blood pressure
• Perfusion
• Urine output
• Oral intake
• Fluid balance
• Congestion
• Kidney function

This is particularly important in patients with:

• Sepsis
• Heart failure
• Kidney disease

For additional review, see Heart Failure in Hospital Medicine.

5. Follow Acute Kidney Injury

A patient admitted with AKI should not simply wait for the inpatient bed before kidney-focused management continues.

Review:

• Creatinine trends
• Urine output
• Hemodynamics
• Medications
• Potential nephrotoxins
• Volume status
• Electrolytes

Hospitalists interested in predictive approaches to AKI can also read Can AI Help Prevent Acute Kidney Injury? What Hospitalists Should Know About ESTOP-AKI.

6. Manage Electrolytes

Abnormal electrolytes frequently evolve while patients are boarding.

Important abnormalities may include:

• Hyponatremia
• Hypernatremia
• Hypokalemia
• Hyperkalemia
• Hypomagnesemia

Repeat testing and treatment should be driven by clinical need rather than by whether the patient has physically reached the floor.

7. Advance Diagnostic Testing

Boarding time can potentially be used to complete necessary testing.

Depending on the clinical situation, this may include:

• Repeat laboratory studies
• Imaging
• Echocardiography
• Ultrasound
• Microbiology
• Additional diagnostic evaluation

The goal is not indiscriminate testing.

The goal is to avoid unnecessary delays in tests that are already clinically indicated.

8. Involve Consultants Earlier When Appropriate

If the patient clearly requires specialist input, consultation may be able to begin while the patient is boarding.

Examples could include:

• Cardiology
• Nephrology
• Gastroenterology
• Infectious disease
• Pulmonology
• Neurology

The hospital room should not necessarily be the trigger for a clinically indicated consultation.

9. Begin Mobility and Delirium Prevention

Boarding can be especially difficult for older adults.

Prolonged time in an ED environment may involve:

• Limited mobility
• Sleep disruption
• Noise
• Lack of daylight cues
• Unfamiliar surroundings

Hospital-level care should therefore include attention to:

• Mobility
• Orientation
• Hearing aids
• Eyeglasses
• Sleep
• Medication review
• Nutrition

These issues should not wait for an inpatient room when they can reasonably be addressed earlier.

10. Start Discharge Planning

This may be one of the most underused opportunities.

The patient may not even have reached an inpatient floor, but discharge planning can already begin.

Ask:

• What was the patient’s baseline function?
• Where does the patient live?
• Is family support available?
• Are home services needed?
• Is medication access a concern?
• Is transportation a barrier?
• Could rehabilitation be required?
• Is skilled nursing placement likely?
• What follow-up will be needed?

For a broader discussion, read Reducing Hospital Length of Stay: Evidence-Based Strategies That Improve Patient Flow.

Some Patients May Never Need an Inpatient Bed

This is an interesting operational possibility.

Suppose a patient remains in the ED for an extended period after admission.

During that time:

• Treatment is initiated
• Symptoms improve
• Laboratory abnormalities improve
• Consultants evaluate the patient
• The patient ambulates
• Oral intake improves
• Follow-up is arranged

Eventually, the patient may no longer require inpatient hospitalization.

In selected circumstances, the patient might potentially be discharged without ever occupying a traditional inpatient bed.

This should occur only when clinically appropriate.

But from a patient-flow perspective, it demonstrates why care progression matters more than physical location.

Observation Units Can Help

Not every patient requiring continued evaluation needs a traditional inpatient admission.

Well-designed observation pathways may help selected patients with conditions such as:

• Chest pain
• Syncope
• Mild heart failure
• Cellulitis
• Asthma
• Dehydration
• Selected infections

The appropriate population depends on local protocols and resources.

For more on this strategy, read The Evidence: Observation Units Improve Hospital Efficiency.

Hospitalists Should Not Simply Replace Emergency Physicians

A hospitalist boarding service should not create ambiguous responsibility.

Hospitals need clearly defined transitions of care.

Important questions include:

• When does hospital medicine assume primary responsibility?
• Who responds to acute deterioration?
• Who handles ED-specific emergencies?
• Who places orders?
• Who communicates with consultants?
• Who updates families?
• Who owns discharge decisions?
• How are handoffs performed?

Unclear ownership can create new safety problems.

Standardization Matters

Boarding care should not depend entirely on which physician happens to be working.

Hospitals can consider standardized processes involving:

• Responsibility transfer
• Medication reconciliation
• Repeat assessment
• VTE prophylaxis
• Diet
• Mobility
• Glucose management
• Lines and catheters
• Delirium prevention
• Discharge planning
• Consultant follow-up

A standardized framework can help prevent important elements of inpatient care from being missed.

Hospitalists can use The Daily Hospitalist Checklist as a broader framework for systematic inpatient review.

Communication Is Critical

Boarded patients can easily fall between clinical teams.

Emergency clinicians may reasonably view the patient as admitted.

Inpatient teams may subconsciously view the patient as still being in the ED.

That creates risk.

Hospitals should establish clear communication regarding:

• Primary team
• Nursing responsibilities
• Consultant recommendations
• Pending tests
• Medication changes
• Clinical deterioration
• Family updates
• Disposition

The patient should always know who is responsible for their care.

Boarding Care Requires Appropriate Resources

A hospitalist cannot deliver effective inpatient care in the ED without adequate infrastructure.

Hospitals should consider whether boarded patients have appropriate access to:

• Nursing
• Medications
• Monitoring
• Meals
• Mobility assistance
• Toileting
• Pharmacy
• Case management
• Social work
• Therapy
• Consultants

Simply assigning a hospitalist without addressing these systems may accomplish relatively little.

Don’t Normalize Boarding

There is an important tension here.

Hospitals should improve care for patients who are boarding.

But they should not allow improved boarding processes to make prolonged boarding seem acceptable.

A hospitalist-led boarding service is a mitigation strategy.

It is not a substitute for solving the underlying capacity problem.

Hospitals still need to address:

• Discharge delays
• Bed turnover
• Staffing
• Post-acute placement
• Hospital occupancy
• Patient flow
• Admission patterns

Reducing Length of Stay Can Reduce Boarding

One of the most effective ways to create inpatient capacity is to improve patient flow throughout the hospital.

Even modest improvements in length of stay can potentially free inpatient capacity.

Strategies can include:

• Earlier discharge planning
• Multidisciplinary rounds
• Earlier identification of barriers
• Medication reconciliation
• Timely consultation
• Diagnostic coordination
• Improved post-acute placement processes

For a comprehensive review, read Reducing Hospital Length of Stay.

Delayed Discharges Feed ED Boarding

A patient waiting upstairs for:

• Skilled nursing placement
• Transportation
• Home oxygen
• Durable medical equipment
• Insurance authorization
• Family arrangements

may indirectly prevent another admitted patient from leaving the ED.

This illustrates why boarding is a system problem.

The emergency department may be where the problem becomes visible.

But the cause may be somewhere else entirely.

Read Delayed Hospital Discharges for a deeper look at these barriers.

What Should Hospitals Measure?

A hospitalist-led ED boarding program should be evaluated rather than simply implemented and assumed to work.

Potential measures include:

BOARDING TIME

How long do admitted patients remain in the ED?

LENGTH OF STAY

Does earlier hospitalist management change total hospital LOS?

TIME TO TREATMENT

Are important medications and interventions delivered sooner?

DISCHARGE TIMING

Are patients discharged earlier?

ICU TRANSFERS

Are deteriorating patients recognized appropriately?

SAFETY EVENTS

Are medication errors, falls, or other events changing?

READMISSIONS

Are there unintended downstream effects?

PATIENT EXPERIENCE

Do patients understand the care plan and responsible team?

CLINICIAN EXPERIENCE

How does the model affect emergency physicians, hospitalists, nurses, and other staff?

A Practical Hospitalist Boarding Framework

Hospitals considering this approach can think in four phases.

Phase 1: Identify

Identify admitted medicine patients who are expected to remain in the ED beyond a locally defined threshold.

Phase 2: Transition

Clearly transfer primary responsibility to the hospital medicine team when appropriate.

Phase 3: Advance Care

Begin inpatient-level management:

• Reassessment
• Medication reconciliation
• Treatment optimization
• Diagnostic follow-up
• Consultant coordination
• Mobility
• Nutrition
• Discharge planning

Phase 4: Reassess Disposition

Regularly ask:

Does this patient still require hospitalization?

If yes, continue appropriate inpatient care while awaiting a bed.

If no, evaluate whether safe discharge is now possible.

Frequently Asked Questions

What is ED boarding?

ED boarding generally refers to an admitted patient remaining in the emergency department while waiting for an inpatient bed or another appropriate destination.

Is ED boarding just an emergency-department problem?

No. Boarding often reflects hospital-wide capacity and patient-flow problems involving inpatient beds, staffing, discharge processes, and post-acute care.

Can hospitalists care for admitted patients while they remain in the ED?

Yes. Some hospitals have developed hospital-medicine services specifically for admitted patients boarding in the ED.

Does a hospitalist-led boarding service reduce length of stay?

Observational research has found shorter hospital LOS among some boarded patients covered by hospitalist-led services compared with boarded patients without that coverage. However, observational findings do not prove causation.

Should every hospital create an ED hospitalist team?

Not necessarily. The appropriate model depends on boarding volume, staffing, hospital structure, resources, and local needs.

Can a boarded patient be discharged directly from the ED?

Potentially, if the patient improves sufficiently and a safe discharge plan is established. The decision should be based on clinical appropriateness rather than location.

Does improving boarding care solve hospital crowding?

No. Better boarding care can mitigate some risks and delays, but hospitals must still address the underlying causes of insufficient inpatient capacity.

Bottom Line

Once a patient has been admitted to medicine, inpatient care should not necessarily wait for an inpatient room.

When boarding cannot immediately be avoided, hospitals can consider using that time to:

reassess the patient

optimize treatment

review medications

follow diagnostic results

involve consultants

promote mobility

begin discharge planning

and

continually reassess whether hospitalization is still required.

A hospitalist-led ED boarding service is not a cure for hospital crowding.

But it represents an important shift in thinking:

Don’t just wait for the bed. Advance the care.

The emergency department may be the patient’s physical location.

But once the patient is admitted, the hospitalization has already begun.