Stability of Lyophilized Homemade Control Serum After Reconstitution on SGOT and SGPT Levels Stored in Freezer at Temperature (-2° to -4°C) and -20°C for 8 Weeks

Improving health laboratory services is closely related to strengthening the quality of laboratories. Serum control part assurance Lyophilized homemade serum a type serum. This research aims determine stability lyophilized against Glutamic Oxaloacetic Transaminase (SGOT) and Pyruvic (SGPT) levels. used an experimental method with pooled sera as material stored at -2°C -4°C -20°C for 8 weeks. Pooled were obtained from respondents who had no history disease, free HIV, AIDS, HBsAg. The was conducted Reference Laboratory Clinical Chemistry Politeknik Kesehatan (Poltekkes) Kementerian Kesehatan, Surabaya. results study data analysis using linear regression test. SGOT parameter freezer temperature (-2 -4°C) showed that storage time effect 90.97% error component 9.03%. At (-20°C), result has 78.71% 21.29%. In SGPT -4°C), 96.71% 3.29%. 91.47% 8.53%. examinations did not exceed limits ±2SD ±3SD CV on also CCV limits, which be stable.