> For the complete documentation index, see [llms.txt](https://gl-docs.gitbook.io/zkpass/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gl-docs.gitbook.io/zkpass/use-cases/employee-onboarding/blood-test-result-user-data.md).

# “Blood Test Result” User Data

QualityHealth Labs, which takes the client role of the Data Issuer, defines and issues the Blood Test Result [user data](/zkpass/getting-started/key-concepts/user-data.md), which is shown here in two different formats.

{% tabs %}
{% tab title="Report Format" %}

### Test Information

* **Test ID**: SCREEN-7083-12345
* **Test Name**: QualityHealth Comprehensive Screen
* **Test Date**: August 27, 2023, at 14:00 UTC

### Lab Details

* **Lab Name**: QualityHealth Labs
* **Lab ID**: QH801874
* **Lab Address**: 1234 Elm St, Oakland, USA

***

### Subject Information

#### Personal Details

* **Name**: Jane Doe
* **Date of Birth**: December 12, 1985
* **Blood Type**: A+

#### Contact Information

* **Email**: <jane.doe@gmail.com>
* **Phone**: 650-555-1234

#### Address

* **Street**: 789 Oak Street
* **City**: San Jose
* **State**: CA
* **ZIP Code**: 95134

***

### Genetic Information

#### DNA Markers

* **APOE**: E3, E3
* **BRCA1**: Normal
* **MTHFR**: C677T, A1298C

#### Haplogroups

* **Paternal**: R1b1
* **Maternal**: H1a1

***

### Drug Test Results (measured in ng/mL)

* **Amphetamines**: 0
* **Cocaine**: 8
* **Opiates**: 102
* **Benzodiazepines**: 0
  {% endtab %}

{% tab title="JSON Format" %}
{% code lineNumbers="true" %}

```json
{
  "testID": "SCREEN-7083-12345",
  "testName": "QualityHealth Comprehensive Screen",
  "testDate": "2023-08-27T14:00:00Z",
  "lab": {
    "name": "QualityHealth Labs",
    "ID": "QH801874",
    "address": "1234 Elm St, Oakland, USA"
  },
  "subject": {
    "firstName": "Jane",
    "_firstName_zkpass_public_": true,
    "lastName":  "Doe",
    "dateOfBirth": "1985-12-12",
    "bloodType": "A+",
    "DNAInfo": {
      "markers": {
        "APOE": [
          "E3",
          "E3"
        ],
        "BRCA1": "Normal",
        "MTHFR": [
          "C677T",
          "A1298C"
        ]
      },
      "haplogroups": {
        "paternal": "R1b1",
        "maternal": "H1a1"
      }
    },
    "contact": {
      "email": "jane.doe@gmail.com",
      "phone": "650-555-1234"
    },
    "address": {
      "street": "789 Oak Street",
      "city": "San Jose",
      "state": "CA",
      "zip": "95134"
    }
  },
  "measuredPanelsNgML": {
    "amphetamines": 0,
    "cocaine": 8,
    "opiates": 102,
    "benzodiazepines": 0
  }
}
```

{% endcode %}
{% endtab %}
{% endtabs %}

As indicated above, the blood test result actually contains several sensitive information on the patient, such as the blood type, DNA information, home address, and contact information.&#x20;

However, Namaste Tech only wants to know if the user has no history of Amphetamine and Cocaine use. Sending the entire blood test to Namaste Tech is not only unnecessary but also reveals sensitive information about the user, which over time can leak out of Namaste Tech’s database, thus compromising the privacy of the user.