The University of Chicago Medicine Laboratories

• Laboratory Critical Value List
• Laboratory Locations, Hours and Contacts
• Anticoagulation Monitoring
• Thromboelastography TEG at UCM
• Phlebotomy and Collection Center
• Licensure and Accreditation Information

Links

• Mayo Test Catalog
• Genetic Services Laboratory Test Menu
• Department of Pathology
• UChicago MedLabs
• Blood Donation

Specimen Collection and Handling

• Specimen Collection Do's and Don'ts Tip Sheet
• Order of Blood Draw Procedure
• Order of Draw Tube Guide 
• Glucose Tolerance Testing Collection
• Microbiology Specimen Collection
• Urine and Stool Specimen Collection
• Urine Collection Patient Instructions
• AlloMap Processing Instructions
• AlloMap JobAid

Announcements

• Test Delay - Mayo Clinical Labs/LIPA1 and APOLB (eff. 06.04.26)
• Obsolete Tests – Mayo Clinical Laboratories (eff. 06.01.26)
• Blood Bank Computer System (Sunquest) is Now Up and Operational (in Recovery) (eff. 5/28/2026)
• Blood Bank Computer system (Sunquest) Scheduled Downtime (2 hours – 11 AM to 1PM) (eff. 05.28.26)
• New Test Order - Lab Miscellaneous Sendout Request (eff 05.27.26)
• Fecal Pancreatic Elastase Testing Offered at UCM Clinical Chemistry Lab - Hyde Park (eff. 4.28.26)
• Standardization of Bilirubin Panel and Hepatic Function Panel Order Naming (eff. 4.27.26)
• EPOC Analyzer Potassium (K), Hematocrit (Hct) and calculated Hemoglobin (cHgb) Analytes Being Turned Off Until Further Notice
• New Differential Reference range for patients <16 years old (eff. 4.07.26)
• Enhanced Liver Fibrosis (ELF) Score Test Update (eff 4.06.26)
• Rh Immune Globulin (RhIG / RhoPhylac) Distribution Changes
• Technical Issues Affecting Microorganism Identification Resolved (eff.3.13.26)
• Blood Bank Computer System (Sunquest) Issues (Downtime) Resolved (eff.3.17.2026)
• Blood Bank Computer System (Sunquest) Issues (Downtime)
• Removing STAT order option for sendout-tests
• Microorganisms Identification Delays in Clinical Microbiology Laboratory
• Laboratory Diagnosis of Clostridioides difficile Infection (CDI) Algorithm Changes
• Change of aPTT Heparin Theraputic Range
• Preeclampsia Risk Assessment (sFlt-1/PlGF Ratio) Method Change at UCM Clinical Chemistry Lab - Hyde Park
• Effective Immediately: Standardization of ED and Pediatric Clinical Chemistry Panel Orders
• Mean Platelet Volume (MPV) Reference Range Change
• Notice of Testing Transition: Anti-Thyroperoxidase and Anti-Thyroglobulin Antibodies
• DCAM Infusion Clearance Laboratory Opening 12/16/2025
• New Instrumentation for Osmolality Testing 
• Updates to available TEG assays
• Send-Out of Cyclosporine A, Everolimus, and Sirolimus Testing
• Pediatric Conjugated Bilirubin Reagent Shortage

Transfusion

• Transfusion Service
• Pre-Transfusion Laboratory Testing
• Emergency Transfusions
• Massive Transfusion Protocol / Emergency Transfusion Guide
• MTP Runner Tip Sheet
• Maximum Surgical Blood Ordering Schedule
• Circular of Information for Blood and Components
• Therapeutic Apheresis - Scope of Services
• Satellite Location Transfusions (Nursing SOP)

Forms

• RhIG Dose Calculator
• Reference Guide for Stimulation Tests 

Mayo Clinic Laboratories

• Policies
• Terms of Use