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

Announcements

• 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
• Urinalysis with reflex to urine culture order (LABHEUAC) Update at UCM Hyde Park and Ingalls Memorial
• Changes to Malaria test name and reporting
• Clinical Chemistry HBSAB Anti-HBs II Assay Update
• Resolution of Testing Delays at UCM Hyde Park Clinical Chemistry Lab
• Testing Delays at UCM Hyde Park Clinical Chemistry Lab
• Change to Protein C Testing Methodology (Switch to Chromogenic Protein C Assay)
• Blood Bank Downtime Recovery
• Tacrolimus Testing Method Change at UCM Clinical Chemistry Lab - Hyde Park
• Changes in Ordering and Result Reporting for Fetal Hemoglobin
• New JAK2 Reflex to CALR Test

Specimen Collection and Handling

• 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 Instruction
• AlloMap JobAid

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