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Version: 3.1

Set up qualified ranges

Overview

This flow describes how to set up qualified ranges on an observation definition in Care. Qualified ranges are the rules that decide the interpretation that Care gives to a result. A rule can depend on the patient, such as age, gender, or tags, or on the encounter.

Pre-requisites

Permissions

PermissionAccess
Can Create Observation Definition on FacilityLets you add or change interpretation rules.

Steps

1. Add an interpretation rule

Go to the Observation Interpretation panel on the observation definition form. Click Add Interpretation. Care opens the Add/Edit Interpretation panel.

Note: You can add rules to the observation definition, or to its components. Care disables one panel when you use the other.

2. Name the rule

Enter a short title for the rule in the title box at the top of the panel. Use a title that you recognise later in the list of rules.

3. Add conditions

Conditions decide when Care applies the rule. Conditions are optional. Click Add in the Conditions section for each condition.

For each condition, select the metric, the operation, and the value.

ComponentsWhat it captures
MetricThe item to check, such as Patient Age, Patient Gender, Encounter Class, Patient Tags, or Encounter Tags.
OperationHow Care compares the value: Equals to, In range, or Has tag.
ValueThe value that Care compares against.

4. Add the value ranges

Click Add in the Ranges section. Enter the interpretation text in the Display box, for example Normal, Abnormal, or Critical. Enter a Min value and a Max value for that range. Turn on the highlight switch to make Care mark a result in that range.

Click Add again for each further range.

5. Set the fallback interpretation

Turn on Fallback for the rule. Care applies the fallback when a result matches the conditions of the rule, but no range holds the value.

6. Save the rule

Click Save. To discard the rule, click Cancel.

Note: Care checks the rules in the order that you add them. Care skips a rule when the conditions do not match. If no range holds the value and the rule has no fallback, Care checks the next rule.

Expected Outcome

  • The rule shows in the Observation Interpretation panel of the observation definition.
  • Care gives an interpretation to each new result for this observation definition from the first rule that matches.

Concepts:

Flows: