Bolus subType: square

Jump to...(notable fields on this type)

NB: All fields are required unless otherwise noted.

Jump to example JSON:

type

[ingestion, storage, client] The string bolus.

QUICK SUMMARY
Required:
    jellyfish: yes
    platform: yes

subType

[ingestion, storage, client] The string square.

QUICK SUMMARY
Required:
    jellyfish: yes
    platform: yes

Changelog for subType

_schemaVersion ? (future): We plan to migrate from square to extended in the future.

This is the sub-type of bolus event that represents a bolus insulin dose programmed to be delivered spread evenly over a duration of time (typically fifteen minutes to several hours).

We plan to migrate all Tidepool data to use extended as the value of this sub-type rather than square in order to improve the consistency of the data model. With subType containing extended and the extended field containing the value of the delivered insulin dose, this sub-type of bolus event will be parallel to normal boluses, where the subType is normal and the normal field contains the value of the delivered insulin dose.

extended

[ingestion, storage, client] A floating point value representing units of insulin.

QUICK SUMMARY
Required:
    jellyfish: yes
    platform: yes
Numerical type: Floating point value rounded to the appropriate significant figures for the device's precision.
Range:
    min: >= 0.0
    max: 100.0

The extended field encodes the numerical value of the dose of insulin delivered over the duration by an insulin pump. As with normal boluses, we do not allow the upload of boluses with a total delivered dose of 0 units.

Refer to the documentation for normal boluses for an explanation of the range of this field.

expectedExtended

This field is optional.

[ingestion, storage, client] A floating point value representing units of insulin.

QUICK SUMMARY
Required:
    jellyfish: no (optional)
    platform: no (optional)
Numerical type: Floating point value rounded to the appropriate significant figures for the device's precision.
Range:
    min: > `extended`
    max: 100.0

When a square bolus is interrupted (for example, by an occlusion or pump malfunction) or canceled by the user, the expectedExtended field is used to store the original value of the dose of insulin that the user programmed, while extended represents the value of the dose that was actually delivered.

Refer to the documentation for normal boluses for an explanation of the range of this field.

duration

[ingestion, storage, client] An integer value representing a duration of time in milliseconds.

QUICK SUMMARY
Required:
    jellyfish: yes
    platform: yes
Numerical type: Integer value representing milliseconds.
Range:
    min: 0
    max: 86400000

The duration field encodes the actual elapsed duration of time, in milliseconds, spent delivering the dose of insulin encoded in extended.

The user interface for some insulin pumps allows a user to program a square bolus with a 0 duration; this is logically equivalent to a normal bolus but in order to expose device data with the highest level of fidelity possible, we preserve the record as a sub-type square and allow the upload of the event with a value of 0 for duration.

To the best of our knowledge, no insulin pump allows the programming of a square bolus with a duration longer than twenty-four hours, and so we have chosen this as the maximum value accepted by the new platform APIs.

expectedDuration

This field is optional.

[ingestion, storage, client] An integer value representing an original programmed duration of time in milliseconds when the programmed event did not complete due to interruption or user cancellation.

QUICK SUMMARY
Required:
    jellyfish: no (optional)
    platform: no (optional)
Numerical type: Integer value representing milliseconds.
Range:
    min: >= `duration`
    max: 86400000

When a square bolus is interrupted (for example, by an occlusion or pump malfunction) or canceled by the user, the expectedDuration field is used to store the original duration of time that the user programmed for delivery of the dose of insulin encoded in extended. The duration field, in contrast, encodes the actual elapsed duration of dose delivery.

The minimum value of expectedDuration is any value greater than or equal to that encoded under duration since any other value (i.e., less than duration) cannot obtain from interruption or cancellation of a bolus. Note that the expectedDuration can only be equal to the duration in the very rare and special case that the duration is 0. See above under duration for discussion of the minimum and maximum values for this field.

clockDriftOffset

See common fields.

conversionOffset

See common fields.

deviceId

See common fields.

deviceTime

See common fields.

time

See common fields.

timezoneOffset

See common fields.

uploadId

See common fields.

_active

See common fields.

_groupId

See common fields.

_schemaVersion

See common fields.

_version

See common fields.

createdTime

See common fields.

guid

See common fields.

id

See common fields.

example (client)

{
    "type": "bolus",
    "subType": "square",
    "extended": 9.75,
    "expectedExtended": 14.625,
    "duration": 3600000,
    "expectedDuration": 5400000,
    "clockDriftOffset": 0,
    "conversionOffset": 0,
    "deviceId": "DevId0987654321",
    "deviceTime": "2018-05-14T18:17:06",
    "guid": "05934ef2-230c-42cb-bebc-e2163462dbf7",
    "id": "5753389d95f842c283de92bb85ca43cf",
    "time": "2018-05-14T08:17:06.859Z",
    "timezoneOffset": 600,
    "uploadId": "SampleUploadId"
}

example (ingestion)

{
    "type": "bolus",
    "subType": "square",
    "extended": 8.25,
    "expectedExtended": 12.375,
    "duration": 25200000,
    "expectedDuration": 37800000,
    "clockDriftOffset": 0,
    "conversionOffset": 0,
    "deviceId": "DevId0987654321",
    "deviceTime": "2018-05-14T18:17:06",
    "time": "2018-05-14T08:17:06.860Z",
    "timezoneOffset": 600,
    "uploadId": "SampleUploadId"
}

example (storage)

{
    "type": "bolus",
    "subType": "square",
    "extended": 6,
    "expectedExtended": 9,
    "duration": 23400000,
    "expectedDuration": 35100000,
    "_active": true,
    "_groupId": "abcdef",
    "_schemaVersion": 0,
    "_version": 0,
    "clockDriftOffset": 0,
    "conversionOffset": 0,
    "createdTime": "2018-05-14T08:17:11.860Z",
    "deviceId": "DevId0987654321",
    "deviceTime": "2018-05-14T18:17:06",
    "guid": "23f71af0-f30b-4348-88f6-4169bd46ffcb",
    "id": "b862128865b34aabad71d02389717579",
    "time": "2018-05-14T08:17:06.860Z",
    "timezoneOffset": 600,
    "uploadId": "SampleUploadId"
}

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