Any piece of program code in a high-level language which, when (if) its execution terminates, returns a value. In most programming languages, expressions consist of constants, variables, operators, functions, and parentheses. The operators and functions may be built-in or user defined.
If oral contrast is required, about 45 to 60 minutes is needed for the contrast to move through your digestive tract. Actual scan times vary from a few seconds to several minutes. If no oral contrast is required, the examination will take about 15 to 30 minutes, including the time for intravenous preparation and interview. In some cases additional scanning is required as scans are tailored to suit individual diagnostic needs.
Several other things can affect how long Ativan stays in a personâs system including their body weight or how much of the drug is consumed. According to AddictionBlog.org, large doses of the drug can stay in a personâs system for several weeks. Ativan can also be detected in hair for about 90 days.