| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Aldosterone measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine cotinine measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine urea measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine pregnanediol measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine substance metabolite screening test | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Aluminum measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine inorganic phosphate measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Porphyrins, qualitative measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine fat measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Magnesium measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine titratable acidity measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Metanephrines measurement, total, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine pregnanetriol measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Alkaloids measurement, urine screening | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Porphyrins, quantitation and fractionation, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine ethambutol level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Screening for ethyl glucuronide in urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine nitrogen measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine methadone metabolite level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine vitamin C measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine rifampicin level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Measurement of diphenhydramine in urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Arsenic measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine bicarbonate measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Quantitative measurement of mass concentration of beryllium in urine specimen | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| No drug found in urine | Interprets | False | Urine substance measurement | Inferred relationship | Existential restriction modifier | 1 | 
| Urine fructose measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine steroid profile | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine ketone test | Is a | False | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Measurement of 17-hydroxycorticosteroid in 24 hour urine specimen | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Uric acid measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| D-lactate measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine phenothiazine measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine benzodiazepine measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine lithium measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine cocaine metabolite screening | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| 3-Methoxy-4-hydroxphenylglycol measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine bisacodyl level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine barbiturate measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine ethanolamine measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Alcohol measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine isoniazid measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Quantitative measurement of mass concentration ratio of excretion of histamine to excretion of creatinine in 24 hour urine specimen | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine vitamin B2 measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine bile salt measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| 24 hour urine phosphate output measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine methaqualone level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine oxalate measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine screening for blood | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine urobilin measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine morphine metabolite level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Measurement of amoxapine and metabolite in urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine heptaporphyrin concentration measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Silica measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine organic acid level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Drug level in urine specimen above therapeutic range | Interprets | False | Urine substance measurement | Inferred relationship | Existential restriction modifier | 1 | 
| Urine albumin/creatinine ratio measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine catecholamine measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine rhein level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine reducing substance measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine N-methyl histamine measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine amphetamine measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine methylenedioxyethylamphetamine screening test | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Qualitative measurement of anabolic steroid in urine | Is a | False | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine dipstick test | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine opiate measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine hexaporphyrin measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Finding of urine substance level | Interprets | True | Urine substance measurement | Inferred relationship | Existential restriction modifier | 1 | 
| Urine nickel:creatinine ratio | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine 17 ketogenic steroid measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Measurement of protein in urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Lactose measurement, urine, qualitative | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Lactose measurement, urine, quantitative | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine sucrose measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine maltose level | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Drug, medicament, or biological substance in urine above reference range | Interprets | False | Urine substance measurement | Inferred relationship | Existential restriction modifier | 1 | 
| Urea nitrogen measurement, urine | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine substance level above reference range | Interprets | True | Urine substance measurement | Inferred relationship | Existential restriction modifier | 1 | 
| Urinalysis, acetone or ketone bodies measurement | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Measurement of concentration of amphetamine in urine specimen (procedure) | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  | 
| Urine sulphonylurea screening test | Is a | True | Urine substance measurement | Inferred relationship | Existential restriction modifier |  |