Routine chemistry

Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour. SHIPPING/ TRANSPORTATION REQUIREMENTS Shipping Temperature: Refrigerated (Preferred) STABILITY IN SERUM/PLASMA Room Temperature: 3 days at 20-25°C │ Refrigerated: 7 days at 2-8°C │ Frozen: 7 daysat -20°C

Spot/ random urine in leak proof container. This test is prone to adulteration (dilution, swapping of samples etc.) by clients undergoing testing. Referring institutions should ensure that there is proper chain of custody. The lab reserves the right to take safeguards against adulteration e.g., requesting sample recollection, supervised collection etc.

Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour. SHIPPING/ TRANSPORTATION REQUIREMENTS Shipping Temperature: Refrigerated ANALYTE STABILITY Room Temperature: 4 DAYS at 20-25°C │ Refrigerated: 7 DAYS at 2-8°C │ Frozen: 3 MONTHS at -20°C

Stone(s) is/ are obtained either 1) Surgically i.e. in theatre or 2) By the patient by FILTERING FIRST MORNING VOID URINE. They should then be allowed to DRY e.g. by air drying at room temperature for at least 24 hours on tissue or a towel. The dried stone(s) should then be put in a SCREW CAPPED PLASTIC CONTAINER with patient identifiers and the SOURCE/ TYPE OF STONE (e.g. renal, gall bladder stone; this is MANDATORY; where exact source location is known, capture that as well e.g. right kidney, left ureter). Do NOT submit in formalin, urine or other liquid or tape the specimen. Transport dry stone(s) at ambient temperature. Dry stones do not stick to the container. Stones that are received wet will have prolonged TAT to allow drying of the stone prior to analysis. Empty containers, taped specimens will be rejected.

Collect in EDTA (purple top) vacutainer, preferably pre-chilled & immediately place in ice slurry. Avoid fist clenching during collection. Centrifuge and separate plasma within 15 minutes of collection, label separation aliquot and freeze immediately. SHIPPING/ TRANSPORTATION REQUIREMENTS Shipping Temperature: Frozen STABILITY IN SERUM/PLASMA Room Temperature: 15 minutes at 20-25°C │ Refrigerated: 2 hours at 2-8°C │ Frozen: 3 weeks at -20°C

Cleanse collection site with NON-ALCOHOLIC disinfectant e.g. povidone iodine. Do NOT use spirit / isopropanol which is an alcoholic agent. Use SST tube, allow to clot and centrifuge within 1-2 hours of collection; do NOT open / uncap tube / aliquot (analyte is volatile) SHIPPING/ TRANSPORTATION REQUIREMENTS Shipping Temperature: Refrigerated ANALYTE STABILITY Room Temperature: 14 DAY at 20-25°C │ Refrigerated: 6 MONTHS at 2-8°C │ Frozen: 6 MONTHS at -20°C

FASTING (10-12 hours) is required. Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour. Transport serum sample REFRIGERATED. SHIPPING/ TRANSPORTATION REQUIREMENTS Shipping Temperature: Refrigerated ANALYTE STABILITY Room Temperature: 1 day at 20-25°C │ Refrigerated: 8 days at 2-8°C │ Frozen: 3 month at -20°C

Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour. SHIPPING/ TRANSPORTATION REQUIREMENTS Shipping Temperature: Refrigerated ANALYTE STABILITY Room Temperature: 3 DAYS at 20-25°C │ Refrigerated: 7 DAYS at 2-8°C │ Frozen: 6 MONTHS at -20°C

Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour. Test components: Sodium, Chloride, Potassium.

Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour. Fasting is NOT routinely required. However fasting lipid profile should be considered in the setting of high triglyceride values (>4.5-5mmol/L), suspected genetic lipid disorders, pancreatitis (ACC/ AHA/ EFLM guidelines) and will be done when this is EXPLICITLY stated by the ordering doctor/ clinician. TEST COMPONENTS: Total cholesterol, Triglycerides, HDL cholesterol, LDL cholesterol, VLDL cholesterol SHIPPING/ TRANSPORTATION REQUIREMENTS Shipping Temperature: Refrigerated ANALYTE STABILITY Room Temperature: 2 DAYS at 20-25°C │ Refrigerated: 7 DAYS at 2-8°C │ Frozen: 1 YEAR at -20°C