# Lab Testing - SIBO Breath Test with EH Diagnostics, Treatment, & Labs

> Preparation Instructions for Your Upcoming Labwork/Testing: Our SIBO Breath Test is an at-home test. By scheduling this appointment, we will have your kit prepared and ready for you to pick up at your appointment time. Please let us know if you have any questions.

- Host: EH Diagnostics, Treatment, & Labs
- Duration: 30 min
- Location: In Person (Organizer Address)
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://extension-health.cal.com/proto/sibo-breath-test
- Event type id: 4111492

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4111492&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 4111492,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.