Laboratory Resources:

List of Critical Values

eGFR Calculation

Antibiogram 2026

Mayo Allergen Panels

Test Requisitions:

NCH Lab Requisition

VDHL Test Requisition

Pathology Requisition

Invitae Test Requisitions:

Invitae Genetic Testing Guidance

Neurodevelopmental Disorders Test Requisition

Invitae Requisition Form

Specimen Collection Guidelines:

• Glucose Tolerance Tests
• Therapeutic Drug Level Collection Times
• 24 Hour Timed Urine Collection
• Specimen Collection for Urinalysis and Urine Cultures
• Specimen Collection for Stool Samples
• Specimen Collection for Microbiology Samples
• Specimen Collection for Chlamydia and Gonorrheae Testing
• Specimen Collection for ThinPrep Testing
• Specimen Collection for Covid-19 Testing
• Collection of Post Vasectomy Semen Specimens
• Specimen Collection for Cytology Samples
• Specimen Collection and Handling of Surgical Pathology and Cytology Specimens
• Surgical Pathology Tissue Submission Criteria and Exemption

Mayo Clinic Laboratories

• Policies
• Terms of Use