Periodic Acid Schiff (PAS) Staining Technique For Carbohydrates

Periodic Acid Schiff (PAS) staining is one of the most commonly performed special staining technique in histopathology laboratory which is used to highlight molecules with high percentage of carbohydrate content such as mucin, glycogen, fungi and basement membrane in skin. Principle of PAS Staining PAS method works by exposing the tissue to periodic acid. Periodic […]

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Common blood collection tubes, their additives and laboratory uses

The evacuated tube system for blood collection in use for various laboratory tests consists of tubes of various sizes, with color coded tops indicating tube contents. Most blood collection tubes contain an additive that either accelerates clotting of the blood (clot activator) or prevents the blood from clotting (anticoagulant). The list below lists the most […]

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