UV Light Causes Specific Types of Dark Spots. 1  Melasma: Itâs a common condition characterized by grayish patches on the face, forehead or on the upper lip. 2  Solar Lentigines â Freckles: These are red or brown raised spots caused by long term exposure to the sunlight. 3  Ephelides: These fall under the category of freckles.
What is the antibody titer test? The antibody titer is a test that detects the presence and measures the amount of antibodies within a personâs blood. The amount and diversity of antibodies correlates to the strength of the bodyâs immune response.
A titre is a method used to find the concentration of a given solution by Titration. It is used in the filed of Chemistry as an analyticla tool for finding the concentrations. It is also used in blood tests. A titre in a blood test measures the concentration of antibody in the blood of a human.This test is normally performed to find out if an individual has developed immunity to any particular diseases by detecting the essential concentration of antibodies in his/her body. One more use for a titre test is to ascertain the presence of a disease by examining the concentration of viruses or bacteria in the blood or by examining the antibodies. 2  Various diseases in which this can be helpful include mononucleosis, Lyme disease, or hepatitis.