Method 1: Using the @media At-rules. The @media rule is used to define different style rules for different media types in a single style sheet. It is usually followed by a comma-separated list of media types and the CSS declarations block containing the styles rules for target media. The style declaration in the example below tells the browser to display body content in 14 pixels Arial font on the screen, but in case of printing it will be in a 12 points Times font.
Serological tests may be performed for diagnostic purposes when an infection is suspected, in rheumatic illnesses, and in many other situations, such as checking an individual's blood type. Serology blood tests help to diagnose patients with certain immune deficiencies associated with the lack of antibodies, such as X-linked agammaglobulinemia.
When your blood is tested, doctors can identify the type(s) of antibodies and antigens that are in your blood sample and identify the type of infection you have. Sometimes the body mistakes its own healthy tissue for outside invaders and produces these unnecessary antibodies.erologic TestingâAntigens and Antibodies. To understand serologic tests and why they are useful, it is helpful to know a little about the immune system and why we get sick. Antigens are substances that provoke a response from the immune system. They are most often too small to be seen with the naked eye.