| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Is a | Pyrrole measurement | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Is a | Porphyrin measurement | true | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Is a | Porphyrin screening | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Has measured component | Porphyrin | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Method | Investigation - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Has intent | Diagnostic intent | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Component | Porphyrin | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Method | Evaluation - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Method | Measurement - action | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Is a | Evaluation of stool specimen | true | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Is a | Measurement of substance in specimen | true | Inferred relationship | Existential restriction modifier |  |  | 
| Porphyrin measurement, fecal, qualitative or semi-quantitative | Has specimen | Stool specimen | true | Inferred relationship | Existential restriction modifier | 1 |  |