Observation

Observations are to some extent a "catch-all" for clinical measurements, laboratory results, scores, and other evaluative measure which do not fit neatly in to a standalone category. Observation categories are:

• lab - e.g., "WBC" or "red blood cell count"
• vital - e.g., "BMI" or "height"
• measurement - e.g., a value measured by ECG
• social-habit - e.g., "alcoholic drinks" or "smoking"
• clinical-score - e.g., "Glasgow Coma score"
• survey-or-questionnaire - e.g., "personal health survey"

Trigger

Same as the Observation-Name.

Examples

_{Example of an 'Observation' for Karnofsky performance status greater than or equal to 70%. Note than Karnofsky performance status is a 'clinical-score'.}

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_{Example of an 'Observation' of BMI greater than 29.9 kg/m2. Note that BMI is a 'vital'.}

Arguments

• Duration - An Equality Comparison representing a duration of time that the Observation occurred.
• Eq-Comparison - An Equality Comparison in relation to the Observation. This is often a numeric value, operator, and unit, e.g., "> 40 kg".
• Location - The physical location the Observation occurred at.
• Minimum-Count - An Equality Comparison representing the minimum number of times an Observation event must occur, e.g., "... at least twice in the past year".
• Name - The Observation-Name, e.g., "hemoglobin", or "BMI". The Observation-Name also includes the Observation-Type as an attribute (e.g., "lab", or "vital").
• Polarity - The Observation Polarity.
• Provider - A Provider responsible for the Observation.
• Severity - The Severity of the Observation.
• Specimen - The Observation-Specimen, e.g., "tissue".
• Stage - An Equality Comparison indicating the stage or grade of an Observation.
• Temporality - An Equality Comparison representing the time period an Observation event occurred in.