For treatment, recurrence monitoring: When CEA levels are initially elevated and then decrease to normal after therapy, it means the cancer has been successfully treated. A steadily rising CEA level is often the first sign of tumor recurrence. CEA test may be used in combination with other tumor markers in the evaluation of cancer. Not all cancers produce CEA, and a positive CEA test is not always due to cancer. Therefore, CEA is not recommended for screening the general population.
Tan Delta is also known as the 'loss angle' or 'dissipation factor'. It is used to test the level of degradation in insulation materials of electrical machines and power cables. Tan Delta, also called Loss Angle or Dissipation Factor testing, is a diagnostic method of testing electrical equipment to determine the integrity of the insulation. This is done to try to predict the remaining life expectancy of the equipment.
Genotypic Tests. With a genotypic test, a blood sample containing your HIV is examined to see if there are any mutations. The test results will pinpoint the exact HIV genes where the mutation or mutations occur.henotypic Tests. Phenotypic tests look for drug resistance in a completely different way from genotypic tests. Instead of finding specific mutations, they measure the ability of someone's HIV to reproduce in the presence of HIV medications.