• C-Reactive Protein (CRP)

  • C-peptide

  • C. diff

  • C. diff infection (CDI) testing

  • C. difficile

  • C1

  • C1 esterase inhibitor

  • C1q

  • C2

  • C3

  • C4

  • C5

  • C6

  • C7

  • C8

  • C9

  • CA 15-3 Test

  • CA-125

  • CALR Mutation

  • CCP

  • CCT

  • CD4 and CD8

  • CEA

  • CF DNA analysis

  • CF Gene Mutation Testing

  • CF gene mutation panel

  • CGM

  • CH100

  • CH50

  • CK-MB Test

  • CLO test

  • CO2 Content

  • COVID-19 IgG, IgM antibody test

  • COVID-19 PCR (polymerase chain reaction)

  • CRCL

  • CRP for heart disease

  • CSF Analysis

  • CYP2C19 Genotype

  • Caeruloplasmin

  • Calcidiol (25-hydroxyvitamin D [25(OH)D])

  • Calcifidiol (25-hydroxy-vitamin D)

  • Calcitonin

  • Calcitriol (1,25 dihydroxyvitamin D [1,25(OH)(2)D])

  • Calcium Test

  • Calculus Analysis

  • Calprotectin

  • Calreticulin Mutation Analysis (myeloproliferative neoplasm)

  • Cancer Antigen 125 (CA125) Test

  • Cancer Antigen 15-3

  • Cancer Antigen 19-9

  • Cancer Antigen 19-9 (CA 19-9) Test

  • Capexion®

  • Carbagen SR

  • Carbamazepine

  • Carbon Dioxide Content

  • Carcinoembryonic Antigen (CEA)

  • Cardiac Biomarkers

  • Cardiac CRP

  • Cardiac Risk Assessment

  • Cardiolipin Antibodies

  • Catecholamines, plasma and urine

  • Centromere Antibody

  • Cervical Cytology

  • Cervical screening test

  • CgA

  • Chickenpox and Shingles Tests

  • Chlamydia Test

  • Chloride Test

  • Cholecalciferol (vitamin D3)

  • Cholesterol Test

  • Cholinesterase Test

  • Chromogranin A

  • Ciclosporin

  • Citrulline antibody

  • Cl

  • Clopidogrel (CYP2C19 Genotyping)

  • Clopidogrel Pharmacogenetic Testing

  • Clostridioides difficile and C. difficile Toxin Testing

  • Clotting factors

  • Coagulation Cascade

  • Coagulation Factors

  • Coeliac Disease Tests

  • Complement

  • Complement Activity, Complement Component C3, Complement

  • Component C4

  • Complex PSA

  • Continuous Glucose Monitoring

  • Copper

  • Coronavirus (COVID-19) Testing

  • Coronavirus 2019 Test

  • Corrected Reticulocyte

  • Corticotropin

  • Cortisol Test

  • Cosyntropin

  • Creatine Kinase (CK) Test

  • Creatine Phosphokinase (CPK)

  • Creatinine

  • Creatinine Clearance

  • Cross-linked fibrin degradation product (XDP)

  • Cryocrit

  • Cryoglobulin

  • Cryoprotein

  • Cu, 24-hour urine copper

  • Cyclosporin

  • Cystatin C

  • Cystic fibrosis (CF) genotyping

  • Cytomegalovirus (CMV)

  • c-ANCA

  • c-erbB-2

  • cffDNA

  • cytotoxic T-cells