Medical interventions (such as medical testing and treatments) almost always carry some risks. Those risks could impact quality of life Quality of Life in Older People Quality of life is often defined as the degree to which a person is healthy, comfortable, and able to participate in or enjoy life events. As such, it is highly personal. What one person views... read more . Patients and health care practitioners should weigh the benefits of tests and treatments against the potential negative impacts on quality of life (see also Medical Decision Making Medical Decision Making ).
Potential benefits of medical interventions include the following:
Increased life expectancy
Slowing of disease progression
Improved quality of life (such as being more able to go about daily activities)
Prevention of complications
Potential negative effects of medical interventions include the following:
Symptoms, such as discomfort, prolonged fatigue, loss of muscle strength, reduced mobility, and incontinence
Need for additional tests or treatments
When treatments are very likely to achieve benefits and very unlikely to have negative effects, decisions are relatively easy. However, when there are potentially significant negative effects, people need to work with their doctors to make the decisions that take into account quality of life. For example, aggressive cancer therapy may prolong life but have severe negative effects (including chronic nausea and vomiting) that greatly reduce quality of life. In this case, the person’s preference for quality of life versus duration of life and tolerance for risk and uncertainty may change or create health care goals and help guide what medical interventions to pursue.
The person’s perspective on quality of life may also affect treatment decisions when different treatments (for example, having surgery or taking medicines) may have different benefits, negative effects, or both. Health care practitioners can help people understand what could happen with the various treatment options, enabling people to make more informed decisions regarding medical testing Medical Testing Decisions Because many different diseases can cause the same symptoms, it can be challenging for doctors and other primary care practitioners to identify the cause. Doctors first gather basic information... read more and treatments Medical Treatment Decisions Before recommending treatment, doctors weigh the potential risk of harm from a treatment against its potential benefit. (See also Overview of Medical Decision Making and The Science of Medicine... read more .
When making medical decisions, life expectancy often matters more than age. For example, people with a limited life expectancy may not live long enough to benefit from aggressive treatment of a slowly progressive disorder (for example, radical prostatectomy for a localized, slow-growing prostate cancer). Nevertheless, even people with a limited life expectancy may consider having invasive treatments that may improve quality of life (for example, joint replacement surgery).
Regardless of the overall treatment goals, doctors consider the need to relieve symptoms, such as pain, nausea, and shortness of breath. Having to live with such symptoms can significantly affect quality of life.