Load test patients

Load patients from the Dashboard

To start, open the Patients page in the Dashboard and click the Load Sample Patients button you can find in the top right.

The dialog box opens with two options. You can load the built-in patients, or drop in your own files.

Option 1. Use the built-in patients

Click the Load button next to Seed 10 synthetic patients. This adds ten synthetic patients, each with a full history of conditions, lab results, and medicines. It is the quickest way to see how a dashboard will look.

This option shows up only when the sandbox has no built-in patients yet.

Option 2. Upload your own file

Choose or drag your files onto the dialog. Each file must be a FHIR JSON. Every file needs to have at least one patient inside it.

Whichever option you pick, the new patients land in the same list.

How to generate patient data

Here are a few easy ways to get sample patient data.

Generate patients with Synthea

Synthea is a free tool that creates synthetic patients as FHIR files. Run the commands below to clone the repo and run it.

git clone https://github.com/synthetichealth/synthea.git
cd synthea
./run_synthea -p 5 --exporter.fhir.export true --exporter.fhir.version R4

The -p 5 part asks for 5 patients. You can find the files in output/fhir/, one file per patient with their full history. You can pick one or multiple files you want and drop them into the dialog box.

Generate using an LLM

Describe the patient in plain words and ask for a FHIR R4 bundle in return.

Generate a FHIR R4 transaction Bundle for one Patient with these properties.
Demographics: 47-year-old female, US address.
Conditions: Type 2 diabetes, onset 2019.
Observations: HbA1c (7.4%) and blood pressure (138/89) in the last three months.
Medications: Metformin 500 mg twice daily.
Use urn:uuid: fullUrls with cross-references. Return only the JSON, no commentary.

Take a file you generated using Synthea, and ask any LLM of your choice to modify the patient details. This is useful when a Synthea patient needs a change, like a different age or an extra condition.

Here is a FHIR R4 bundle from Synthea (paste/upload your Synthea data).
Change the patient to 62 years old and add high blood pressure.
Keep everything else the same and return only the modified JSON, no commentary.

Good to know

• Give every patient a name. A patient with no name appears as Unknown Patient in the list.
• Uploading the same patient twice is safe. The repeat is skipped, so you never get duplicates.

File Upload Limits

You can upload up to 50 files at once, each up to 50 MB.