Serum is serum

My prostate specific serum is 5.3.

For a complement fixation test, you will need serum samples from the patient being tested, heat-inactivated complement serum, specific antigen-antibody complexes, an indicator system to visualize complement activity, saline or buffer solutions, and control samples. The test is used to detect the presence of specific antibodies in the patient's serum by measuring the level of complement fixation.

blood serum containing antibodies against specific antigens; provides immunity to a disease

Yes, a 4.2 albumin serum result is normal. The normal range for this specific test is between 3.4 and 5.4 grams per deciliter.