# Follow Up Blood Draw with Chris Cupp

> Follow-up blood draw for existing patients.

- Host: Chris Cupp
- Duration: 15 min
- Location: Range Medical, 1901 Westcliff Dr Suite 9 & 10, Newport Beach, CA 92660
- Host time zone: America/Los_Angeles
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://range-medical.cal.com/cupp/follow-up-blood-draw
- Event type id: 4835909

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4835909&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": 4835909,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

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