Trials for External Quality Control

In 2001 Pro­fes­sor Dr. E. Nieschlag, then pres­i­dent of the Ger­man Soci­ety of Androl­ogy (DGA), ini­ti­ated QuaDeGA, as an exter­nal qual­ity con­trol pro­gramme for semen analy­sis. Ini­tially par­tic­i­pa­tion was vol­un­tary. Since the Ger­man Fed­eral Med­ical Board (BÄK) released its Guide­lines for Qual­ity Assur­ance in Sper­ma­tol­ogy (RiliBÄK) in 2011, par­tic­i­pa­tion in a qual­ity con­trol pro­gramme is manda­tory for all lab­o­ra­to­ries in Germany.

QuaDeGA car­ries out exter­nal qual­ity con­trol tri­als twice a year. Con­sist­ing of two washed and fixed sperm prepa­ra­tions, these sam­ples allow for the esti­ma­tion of sperm con­cen­tra­tion and prepa­ra­tion and stain­ing of a smear for the assess­ment of mor­pho­log­i­cally nor­mal forms. Film sequences of two dif­fer­ent native semen sam­ples are pro­vided on the QuaDeGA plat­form for analy­sis of sperm motility.

Analy­ses should fol­low the guide­lines set out in the WHO Lab­o­ra­tory Man­ual for the Exam­i­na­tion and Pro­cess­ing of Human Semen, 5th edition

The man­ual is also avail­able in German.