An increased AST level is usually a sign of liver disease. Liver disease is even more likely when the levels of substances checked by other liver blood tests have also increased. An increased AST level may be due to any of the following:
In order to keep itself fresh, the lettuce gives off carbon dioxide, causing a slight odour. This carbon dioxide is not harmful and the odour should disappear quickly once the salad package is opened.
In this chapter, both oilborne and. waterborne preservative chemicals are described as to their. potential and uses. See Table 14â2 for a summary of pre-. servatives and their retention levels for various wood prod-. ucts. Some active ingredients can be used in both oilborne. and waterborne preservatives.