| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Urea nitrogen measurement, urine | Is a | Urea nitrogen measurement | true | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Has intent | Diagnostic intent | false | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Has measured component | Blood urea nitrogen | false | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Method | Investigation - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Component | Blood urea nitrogen | false | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Method | Evaluation - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Is a | Electrolytes measurement, urine | false | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Component | Electrolyte | false | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Has specimen | Urine specimen | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Urea nitrogen measurement, urine | Is a | Urine urea measurement | false | Inferred relationship | Existential restriction modifier |  |  | 
| Urea nitrogen measurement, urine | Method | Measurement - action | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Urea nitrogen measurement, urine | Component | Urea nitrogen | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Urea nitrogen measurement, urine | Component | Urea | false | Inferred relationship | Existential restriction modifier | 4 |  | 
| Urea nitrogen measurement, urine | Is a | Urine substance measurement | true | Inferred relationship | Existential restriction modifier |  |  |