Coated with ultrasonically spray-dried microscopic silica particles which activate blood clotting.

Contain an inert polymer gel that separates the serum from the blood clot during centrifugation, preventing contamination of the serum.

Gently mix the blood collection tube by inverting 5-6 times immediately to activate clotting after blood drawing.

Allow the tube to stand for 30 minutes or until the clot is formed before centrifuging.

Centrifugation: 1800-2200 g for 8-15 minutes at 18-25°C.

Liver function tests (ALT, AST, bilirubin, albumin)

Kidney function tests (BUN, creatinine, electrolytes)

Hormone assays (TSH, cortisol, testosterone, estrogen)

Hormone assays (TSH, cortisol, testosterone, estrogen)

Therapeutic drug levels (digoxin, lithium, anticonvulsants)

Vitamin & mineral levels (Vitamin D, iron, folate)