Galactomannan test Shankar-road

GALACTOMANNAN TEST

DESCRIPTION – galactomannan is a polysaccharide antigen that exists primarily in the cell walls of aspergillus species. GM may be released into the blood and other body fluids even in the early stages of aspergillus invasion, and the presence of this antigen can be sustained for 1 to 8 weeks

METHODOLOGY – semi quantitative enzyme immunoassay

TURN AROUND TIME – 1-2 days

SPECIMEN REQUIERED –

COLLECT – plain red or serum separator tube

SPECIMEN PREPARATION – separate serum from cells within 2 hours of collection. Transfer 2 ml serum to transport tube

STORAGE/TRANSPORT TEMPERATURE – frozen

STABILITY – refrigerated: 1 week; frozen; 1 week

UNACCEPTABLE CONDITION – plasma or hemolyzed specimens

SPECIAL INSTRUCTIONS – clinical history is mandatory