PT  - JOURNAL ARTICLE
AU  - Emma M Dyer
AU  - Sormeh Salehian
TI  - How to interpret urine toxicology tests
AID  - 10.1136/archdischild-2018-316139
DP  - 2020 Apr 01
TA  - Archives of disease in childhood - Education & practice edition
PG  - 84--88
VI  - 105
IP  - 2
4099  - http://ep.bmj.com/content/105/2/84.short
4100  - http://ep.bmj.com/content/105/2/84.full
SO  - Arch Dis Child Educ Pract Ed2020 Apr 01; 105
AB  - A 13-year-old girl presents to the emergency department for the second time with an unresponsive episode. She has a GCS (Glasgow Coma Scale) score of 11 on arrival and all other observations are normal. The story is unclear, but there are ongoing safeguarding concerns and the family are known to social services. All investigations are normal. After a period of observation on the ward, her GCS returns to normal and she appears well. Both on the first presentation and this presentation ingestion of a toxin was suspected. However, this was denied by the patient and urine toxicology screen was negative. Does this rule out toxin ingestion? Will this change your management?