1. Non-lab observables
The Observables project is supposed to develop a/the model for non-lab observables during 2012
Non-lab → unlimited scope
Need for determining scope principles

2. Examples of current observables
Vital signs
Scores and indexes
Device settings observables
Drug-related observables
Imaging observables (imaging technique)
Date/Time, duration observables

3. Examples of current observables
Overlap with SNOMED CT attributes
Specimen laterality (observable entity)
Site observables
Biopsy site (observable entity) – Procedure site - Direct
Method observables
Method of drug administration (observable entity) – Route of administration

4. Vital signs Blood pressure Body temperature
How to represent systolic and diastolic phase?
Mean Arterial Pressure?
Jugular Venous Pressure?
Cuff size? Device?
Body temperature
Where is the core body temperature?
Device?

5. Vital signs
Respiratory rate
Heart rate

6. Symptoms (and scores) Pain (e.g. VAS)
Fatigue, Shortness of Breath, Anxeity, ...

7. Pain
”an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage” [IASP]
”an unpleasant experience on the part of a human subject that is both sensory and emotional and that is of a type that is either canonical pain (PCT) or phenomenologically indistinguishable from canonical pain.” [Smith]

8. Pain Types of pain and non-pain [Smith]
Pain due to disorder (disordered structure)
Pain behaviour discordant with disorder
Neuropathic pain
Pain behaviour without pain
Disorder without pain

9. Pain Clinical use cases Condition or Observation result? VAS Intensity
Sensory characteristics
Localisation
Temporal characteristics …
Condition or Observation result?

10. Pain Pain – a condition Pain assessment – an observation/observable
What to represent?

11. Pain observables Pain observable Ability to sense pain
Characteristic of pain
Characteristic of pain at anatomical site
Characteristics of pain of head and neck region
Characteristic of headache
Headache character
Characteristics of pain of truncal structure
Abdominal pain characteristic
Site of gastrointestinal tract pain
Type of gastrointestinal tract pain
Homans' sign location
Pain intensity
Feature of present pain intensity
Pain score
Brief pain coping inventory score
Brief pain inventory score
Dallas pain questionnaire score
Pain self efficacy questionnaire score
Visual analogue scale pain score
Pain threshold
Pattern of pain
Pain character
Affective dimension of pain
Sensory dimension of pain
Pain control behavior
Pain level
Acceptable pain level status
Pain level: disruptive effects
Pain level: psychological effects
Pain tolerance
Pain tolerance level
Response to pain
Type of abdominal pain