Use cases · Before surgery or a procedure · Emergency department · Hospital ward · Specialist clinic · Primary care · Pharmacy
Allergy screening
Allergy records are often vague, and many patients labelled allergic, especially to penicillin, aren't truly allergic, which limits treatment choices. TESSA asks what the reaction was, when it happened, how it was treated and whether the medicine was taken safely since, so the team can tell a likely true allergy from a side effect or intolerance.

At a glance
- Does
- Information gathering, Summarisation
- Setting
- Before surgery or a procedure, Emergency department, Hospital ward, Specialist clinic, Primary care, Pharmacy
- Specialty
- Any specialty
- Who
- Patient-facing
Also searched as
drug allergy history · allergy assessment before surgery · adverse reaction history
Questions
What does TESSA do in allergy screening?
Allergy records are often vague, and many patients labelled allergic, especially to penicillin, aren't truly allergic, which limits treatment choices. TESSA asks what the reaction was, when it happened, how it was treated and whether the medicine was taken safely since, so the team can tell a likely true allergy from a side effect or intolerance. It does this through information gathering, summarisation.
Does TESSA diagnose the patient?
No, TESSA never gives a patient a diagnosis. It collects and collates the information the patient provides, asks probing questions and performs risk assessment; a clinician reviews the summary and decides, and no diagnosis, summary or management plan reaches the patient until the clinician signs.
What happens if the patient mentions a warning sign?
Warning or worrying signs that require immediate attention or action go straight to the care team without alarming the patient. For time-critical presentations, TESSA supports the clinician only and is not currently intended for patient use.
How is patient information protected?
The patient surface runs on session codes, not names, and each institution's data is kept apart with a full audit trail. Our own Anonesia by TINYHealth is a proprietary software and code that removes PIIs, e.g. names, ID numbers and contact details from text before it reaches an AI model.
How do we start with this use case?
Each new use case is built and validated with clinical teams, on your own pathways and guidance. Book a meeting with us to start.


