After-Hours STAT Specimen
For customers of UW Hospital and Clinics' Clinical Laboratories requesting special STAT services after hours (i.e. Methotrexate), pathologist approval must be obtained before testing will proceed with the exception of ethylene glycol, methanol and isopropanol.
Testing that requires pathologist approval after hours is noted in the UW Hospital and Clinics Lab Test Directory. For example, in the entry for Methotrexate (MTX), see the note "Pathology Resident approval is required after hours" in the Days Performed field.
To obtain pathology resident approval, the ordering physician should call UW Hospital and Clinics Paging at (608) 262-2122 and ask for the Clinical Pathology Resident on-call.
Ethylene Glycol and Volatiles (Methanol and Isopropanol) Screen and After-hours Testing Algorithm
- The patient is younger than 18 years old OR
- The patient is 18 years or older and has an osmo gap > 10 by this calculation:
Osmo Gap = Osmolality - [(Sodium x 2) + (Glucose/18) + (BUN/2.8)]