Unstable angina is potentially serious, and chest pain is persistent, but blood tests do not show markers for heart attack. With NSTEMI, the blood tests suggest a heart attack, but most likely, injury to the heart is less serious than with a full-blown heart attack.
How long to keep records. You must normally keep records for at least 6 years from the end of the last company financial year they relate to. You may need to keep records longer if: 1  they show a transaction that covers more than one of the companyâs accounting periods.2  the company has bought something that it expects to last more than 6 years, like equipment or machinery. 3  you sent your Company Tax Return late.ou must also keep any other financial records, information and calculations you need to complete your Company Tax Return. This includes records of all money: 1  spent by the company, eg receipts, petty cash books, orders and delivery notes.
A Decade of Records. How long you should keep your business records on file depends on the action, expense or event the document records, according to the Internal Revenue Service. Documents that pertain to transactions and payments should be kept for at least 10 years, according to Financial Web.his means you must have accounts payable records available so you may document gain or loss on a sale or disposal of an asset for the length of time in which the asset remains in service. Afterward, you must keep all records and receipts pertaining to the asset for an additional three years, according to QBalance.com.