| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Porphobilinogen measurement, quantitative, urine | Is a | Urine - bile chemistry measurement | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Is a | Porphobilinogen measurement | true | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Has measured component | Porphobilinogen | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Method | Investigation - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Has intent | Diagnostic intent | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Component | Porphobilinogen | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Porphobilinogen measurement, quantitative, urine | Method | Evaluation - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Component | Bile | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Has specimen | Urine specimen | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Porphobilinogen measurement, quantitative, urine | Component | Metabolites and metabolic markers | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Method | Measurement - action | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Porphobilinogen measurement, quantitative, urine | Is a | Urine drug measurement | false | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | Scale type | Quantitative | true | Inferred relationship | Existential restriction modifier | 4 |  | 
| Porphobilinogen measurement, quantitative, urine | Is a | Urine substance measurement | true | Inferred relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | PBCL flag true | PBCL flag true: report, request, level, test | false | Additional relationship | Existential restriction modifier |  |  | 
| Porphobilinogen measurement, quantitative, urine | PBCL flag true | PBCL flag true: report, request, level, test | false | Additional relationship | Existential restriction modifier |  |  |