Polarization (also polarisation) is a property of waves that can oscillate with more than one orientation. Electromagnetic waves such as light exhibit polarization, as do some other types of wave, such as gravitational waves. Sound waves in a gas or liquid do not exhibit polarization, since the oscillation is always in the direction the wave travels.
If heterophil antibodies are present, the blood clumps (agglutinates). This result usually indicates a mono infection. Monospot testing can usually detect antibodies 2 to 9 weeks after a person is infected. It typically is not used to diagnose mono that started more than 6 months earlier. EBV antibody test. For this test, a sample of blood is mixed with a substance that attaches to antibodies against EBV.
1 A monospot, which confirms that you've got mono. Blood tests that look for EBV antibodies and liver function tests can also help with a diagnosis of mono.  A CBC (complete blood count) will show if your lymphocytes, a type of white blood cell, show certain changes that may be a sign of mono.