C PEPTIDE - NUH C PEPTIDE - SGH C REACTIVE PROTEIN - TTSH C1 EST INHIBITOR (ANTIGEN) - TTSH C1 ESTERASE INHIBITOR(FUNCTIONAL) - TTSH C1Q HLA CLASS I & II - HSA C3 - TTSH C4 - TTSH Cabbage Cacao CADMIUM, BLOOD - SGH CADMIUM, URINE - SGH CAFFEINE LEVEL - HSA Calcitonin CALCITONIN - SGH Calcium Calcium Ionised Calcium, Urine Calcium, Urine 24hr CALCULI ANALYSIS - NUH CALCULI, BILIARY - SGH CALCULI, URINARY - SGH CALR EXON 9 MUTATION DETECTION - TTSH Cancer Antigen 125 (CA 125) Cancer Antigen 15.3 (CA 15.3) Cancer Antigen 19.9 (CA 19.9) Cancer Chromo Karotyping (CYG) - NUH CANCER CHROMO KARYOTYPING (CYG) - NUH Candida albicans Cannabinoids, Urine Carambola Carbamazepine (Tegretol) Carbapenem-resistant Organism (CRO) PCR - XPERT CARBOXY HAEMOGLOBIN - SGH Carcinoembryonic Antigen (CEA) Cardiac Enzymes CARDIOLIPIN (IGG & IGM) AB - TTSH Carrot Cashew nut Castor bean Cat dander CATECHOLAMINES 24 HR URINE - NUH Cauliflower CD10 (CALLA AG) - SGH CD19 - SGH CD20 (PAN B) - SGH CD3 (PAN T) - SGH CD34 HSC ENUMERATION - SGH CD34+ Cell Count - NUH CD38 - SGH CD4 (T HELPER/INDUCER) - SGH CD5 (B & T SUBSET) - SGH CD56 - SGH CD7 - SGH CD8 (T CYTOTOXIC/SUPPRESSOR) - SGH Celery CELL MARKERS (BONE MARROW) - SGH Ceruloplasmin Cervical Screen - HPV DNA & Pap Smear (ThinPrep) Chicken CHIKUGUNYA SEROLOGY - EHI CHIKUGUNYA VIRUS - EHI Chilipepper CHIMERISM STUDIES - NUH CHLAMYDIA ANTIBODY (CFT) - SGH CHLAMYDIA DIRECT (IF) - SGH CHLAMYDIA TRACHOMATIS Chlamydia Trachomatis DNA and Neisseria Gonorrhoeae DNA Chlamydia Trachomatis PCR CHLAMYDIA TRACHOMITIS PCR - NUH Chlamydia, Herpes & Gonorrhoea Chloramin T Chloride Chloride, Urine Chloride, Urine 24hr Cholesterol, HDL Cholesterol, LDL (Calculated) Cholesterol, LDL (Measured) Cholesterol, Total CHOLINESTERASE, SERUM - SGH CHORIONIC VILLUS KARYOTYPING - KKH CHORIONIC VILLUS KARYOTYPING - SGH CHORIONIC VILLUS QF-PCR - KKH CHROMIUM, BLOOD - SGH CHROMIUM, URINE - SGH CHROMOGRANIN A - SGH Chymopapain CIH (FUNCTIONAL & ANTIGEN) - TTSH Cladosporium herbarum Clam CLOSTRIDIUM DIFFICILE CULTURE, STOOL - SGH CLOSTRIDIUM DIFFICILE PCR - SGH Clostridium Difficile Toxins A & B CMV AG IF (OTH SOURCE) CMV AG IF PP65 (BLOOD) - SGH CMV BUFFY COAT C/S - NUH CMV CULTURE - SGH CMV IgG (Cytomegalovirus IgG Antibody) CMV IGG AVIDITY TESTING - NUH CMV IgM (Cytomegalovirus IgM Antibody) CMV PCR - SGH CMV PCR (QUANTITATIVE) - KKH CMV TITRE (CFT) - SGH CMV VIRUS (PCR) - NUH Coagulation Profile Cocaine, Urine Cockroach Oriental Cockroach, American Cockroach, German Coconut Codfish Coffee COLD AGGLUTININ SCREEN (NR) - HSA COLD AGGLUTININ SCREEN (PR) - HSA COLD AGGLUTININ SCREEN (SC) - HSA Common ragweed Common Silver Birch Common Wasp (Yellow Jacket) Complement C3 Complement C4 Comprehensive 1 Inhalant Panel (20 allergens) Comprehensive 2 Inhalant Panel (19 allergens) COMPREHENSIVE DRUG SCREEN (BLOOD) - HSA COMPREHENSIVE DRUG SCREEN (URINE) - HSA Constitut Chromo Karotyping (PCYG) - NUH - Temporarily Suspended Feb 2022 COPPER (BLOOD) - SGH Corn Coronary Risk Screen - Basic Coronary Risk Screen - Comprehensive Cortisol Cotinine, Urine COVID PCR EXPRESS Cow's milk COXIELLA BURNETTI CFT - SGH C-Peptide Crab C-Reactive Protein C-Reactive Protein, High Sensitive Creatine Kinase CREATINE KINASE ISOENZYME - NUH Creatine Kinase-MB Creatinine Creatinine - Post Dialysis Creatinine Clearance Test Creatinine, Urine CROSSMATCH CRYOGLOBULIN SCREEN - NUH Cryopreservation - HSA CRYPTOCOCCAL AG (QUANTITATIVE) - NUH CRYPTOCOCCAL AG (QUANTITATIVE) - SGH CRYPTOCOCCUS AG (QUALITATIVE) - SGH CRYPTOCOCCUS CULTURE - SGH CRYPTOCOCCUS SMEAR/STAIN - SGH Cryptomeria japonica (Japanese cedar) CRYTOCOCCAL NEOFORMAN MICROSCO - SGH CSF BLAST - SGH CSF FOR MENINGITIS AND ENCEPHALITIS-NUH CSF LACTATE - NUH C-TELOPEPTIDES (CTX) - NUH Cucumber Culture and Sensitivity for Salmonella, Shigella, Vibrio, Campylobacter Culture and Sensitivity, Wound Culture and Sensitivity, Abscess Culture and Sensitivity, Blood Culture and Sensitivity, Blood X 2 Culture and Sensitivity, Body Fluids Culture and Sensitivity, Bone Marrow Culture and Sensitivity, Carbapenem Resistant Enterobacteriaceae Culture and Sensitivity, Catheter Culture and Sensitivity, Cerebrospinal Fluid Culture and Sensitivity, Ear Culture and Sensitivity, Eye Culture and Sensitivity, Genital specimen Culture and Sensitivity, Miscellaneous Culture and Sensitivity, MRSA (Methicillin Staphylococcus aureus) Culture and Sensitivity, Neisseria gonorrhoeae Culture and Sensitivity, Pus Culture and Sensitivity, Sputum / Lower Respiratory Culture and Sensitivity, Sterile Body Fluid CULTURE AND SENSITIVITY, STREPTCOCCUS B Culture and Sensitivity, Throat Swabs / Upper Respiratory Culture and Sensitivity, Tissue Culture and Sensitivity, Urine Culture and Sensitivity, VRE (Vancomycin Resistant enterococci) Culture for Candida auris Culture, Blood Fungal Culture, Fungus Culture, Mycoplasma Hominis (for genital specimens only) Curvularia lunata CYANIDE - HSA Cyclosporine Monoclonal, Parent CYP2C19 GENOTYPING - TTSH CYP2D6 GENOTYPING WITH CNV - TTSH CYP3A5 GENOTYPING - TTSH CYSTICEROSIS SEROLOGY - NUH CYTO (OUTS) CELL BLOCK - SGH CYTO (OUTS) CYTOLOGY FNA - NUH CYTO (OUTS) CYTOLOGY FNA - SGH CYTO (OUTS) FLUID CYTOLOGY - NUH CYTO (OUTS) FLUID CYTOLOGY - SGH Cytomegalovirus DNA Quantitation