Pain is defined as an unpleasant subjective sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage (ISAP, 1979).
According to Logan (1995) pain and discomfort are actual postoperative problems that Irene will experience as a result of her breast cancer surgery, therefore management of her pain is of one high priority (Mallett & Dougherty, 2000).
According to Alexander et al (1994) pain can be described as acute or chronic in nature and the experience of pain may also affect the patient psychologically. Therefore they describe acute pain, as