12. Loeb M, et al. Development of minimum criteria for the initiation of antibiotics in residents of long term care facilities: results of a consensus conference. Infect Control Hosp Epidemiol. 2001;22(2):120-124.
Normal results vary based on the method and activators used. Normal APTT results are usually between 25-40 seconds; PTT results are between 60-70 seconds.APTT results for a patient on heparin should be 1.5-2.5 times normal values.An APTT longer than 100 seconds indicates spontaneous bleeding.artial thromboplastin time (PTT), a test for detecting coagulation defects of the intrinsic system by adding activated partial thromboplastin to a sample of test plasma and to a control sample of normal plasma. The time required for the formation of a clot in test plasma is compared with that in the normal plasma.
Generally, the levels of AST ranges from 5 to 43 or 45 units per liter and of ALT from 7 to 56 or 60 units per liter. The upper level tends to be lower in females. A. The serum glutamic-oxaloacetic transaminase (SGOT), now referred to as aspartate aminotransferase (AST) and serum glutamic-pyruvic transaminase (SGPT), called alanine aminotransferase (ALT) are enzymes whose levels are tested to detect liver damage from any cause. They also rise in muscle and heart disease.