| 133 | 133 | A well-known problem in clinical information recording is the assignment of "status" to recorded items. Kinds of status include variants like "actual value of P" (P stands for some phenomenon), "family history of P", "risk of P", "fear of P", as well as negation of any of these, i.e. "not/no P", "no history of P" etc. A proper analysis of these so called statuses shows that they are not "statuses" at all, but different categories of information as per the ontology of FIGURE 18. In general, negations are handled by using "exclusion" archetypes for the appropriate Entry type. For example, "no allergies" can be modelled using an Evaluation archetype that describes which allergies are excluded for this patient. Another set of statement types that can be confused in systems that do not properly model information categories concern interventions, e.g. "hip replacement (5 years ago)", "hip replacement (recommended)", "hip replacement (ordered for next tuesday 10 am)". |
