Colon bleeding. Colon bleeding: Introduction. Colon bleeding: Injury or inflammation of the colon can lead to bleeding of the large intestine. See detailed information below for a list of 8 causes of Colon bleeding, Symptom Checker, including diseases and drug side effect causes. Â» Review Causes of Colon bleeding: Causes | Symptom Checker Â».
Some regulations-COSHH and those for lead, asbestos, ionising radiations and compressed air-state that records should be retained for much longer (up to 50 years) as ill health effects might not emerge until a long time after exposure.ealth records should not contain personal medical information. These must be kept separately and in confidence by the occupational health professional (See below for advice on medical in confidence records) .
These include: 1  I-9s. They must be kept 1 year beyond the employment of the employee if they have been employed longer than three years. 2  OSHA exposure records. The six year timeframe will cover the 5 years that the OSHA 300 logs have to be kept, but it does not cover the 30 years that exposure records must be kept. 3  Litigation.