Schmitt-Thompson triage protocols are the standardized guidelines most nurse triage services use to assess patients over the phone. Barton Schmitt, MD developed the pediatric set. David Thompson, MD developed the adult set. Together they are the most widely adopted telephone triage standard in the United States.
If you are evaluating an after-hours vendor, the protocol question matters more than almost anything else on the demo. Here is what the protocols do and what to ask about them.
What Are Schmitt-Thompson Triage Protocols?
Each protocol covers a single presenting complaint, such as fever, abdominal pain, or head injury. Within that protocol, a nurse works through ordered questions designed to surface the most serious possibility first.
The questions lead to a disposition. Dispositions range from calling emergency services immediately, to being seen within a set timeframe, to managing the symptom at home with specific instructions.
Importantly, the ordering is deliberate. The most urgent criteria appear first, so a serious presentation is caught early in the call rather than at the end.
Why Standardized Protocols Matter
Consistency is the main benefit. Two nurses handling the same symptom reach the same disposition, regardless of who answers.
That consistency has three practical effects for a practice:
- Predictable clinical quality. Advice does not vary with individual judgment or experience level.
- Defensible documentation. The note shows which protocol was used and why a disposition was reached.
- Reduced risk. Under-triage is the primary danger in phone assessment, and protocol ordering is designed specifically to prevent it.
By contrast, a general call script has none of these properties. It records what was said rather than what was assessed.
How Protocols Are Maintained
Clinical guidance changes. As a result, protocol sets are reviewed and revised on a regular cycle rather than written once.
This matters when you evaluate vendors. A service using an outdated protocol version is applying old guidance to current patients. Therefore ask which version is in use and when it was last updated.
Can Protocols Be Customized for Your Practice?
Yes, and this is where many practices get real value. Standard protocols define the clinical floor. Custom orders let your physicians adjust dispositions to match how they want their own patients handled.
For example, a practice may want all newborn fever calls escalated directly, even when the protocol would allow home care. Another may want specific post-operative symptoms routed straight to the surgeon on call.
Ask any vendor whether custom orders are supported, who approves them, and how quickly they can be changed.
Questions to Ask a Nurse Triage Vendor
- Which protocol set do you use, and what version?
- How often are protocols updated, and who reviews them?
- Can we add custom orders, and is there a cost?
- Does the clinical note record which protocol was applied?
- How are nurses trained and audited on protocol use?
- What is your under-triage monitoring process?
A vendor that cannot answer these quickly is not running a protocol-driven service, whatever the marketing says.
Protocols Are Only Half the Answer
Good protocols still need licensed nurses applying them. Automated menus and general agents cannot perform clinical assessment, no matter which guidelines sit behind them.
For more on how the models differ, see our comparison of an automated medical answering service and live nurse triage, or read what nurse triage involves.
What Are Nurse Triage Protocols in General?
Nurse triage protocols are any structured set of clinical guidelines that direct how a nurse assesses a patient by phone. Schmitt-Thompson is the most widely adopted example, but the category is broader.
All credible protocol sets share four features. First, they organize questions by presenting complaint. Second, they order questions so the most serious possibility is ruled out first. Third, they end in a defined disposition rather than open advice. Fourth, they are reviewed and updated on a schedule.
If a vendor cannot describe their protocols in those terms, they are likely using a call script instead. RN triage protocols and nurse triage protocols are often used interchangeably in vendor materials, so ask what sits behind the label.
How Protocols Reduce Practice Risk
Under-triage is the central danger in telephone assessment. It happens when a serious presentation is treated as routine.
Protocol ordering exists specifically to prevent this. Because red-flag criteria appear before routine questions, a nurse encounters the dangerous possibilities early rather than after a long conversation about symptom history.
Over-triage carries a cost too, though a different one. Sending every caller to the emergency department is clinically safe but expensive for patients and damaging to continuity. Well-maintained protocols aim to reduce both errors at once.
Frequently Asked Questions
What are Schmitt-Thompson triage protocols?
They are standardized telephone triage guidelines used by nurses to assess symptoms by phone. Barton Schmitt developed the pediatric set and David Thompson developed the adult set.
Are Schmitt-Thompson protocols evidence based?
Yes. They are built from clinical evidence and expert review, and they are revised on a regular schedule to reflect current practice.
Do all nurse triage services use them?
No. Some vendors use proprietary scripts or general call guides instead. Ask any vendor to name the protocol set they use and how often it is updated.
Can a practice customize the protocols?
Usually yes. Practices can add custom orders so that specific dispositions match how their physicians want patients handled.
Ask Us About Our Protocols
We are happy to walk through the protocol set we use, how custom orders work, and what your clinical documentation would look like.
Schedule a demo to see it in detail.
