SCREENING TESTS
RELIABILITY AND VALIDITY
, WHAT IS A SCREENING TEST?
• A screening test is done to detect potential hea
disorders or diseases in people who do not have a
symptoms of disease.
• The goal is early detection and lifestyle changes
surveillance, to reduce the risk of disease, or to dete
it early enough to treat it most effectively.
• Screening tests are not considered diagnostic, but a
used to identify a subset of the population who shou
have additional testing to determine the presence
absence of disease
, WHEN IS A SCREENING TEST HELPFUL?
• What makes a screening test valuable is its ability to
detect potential problems, while minimizing unclear,
ambiguous, or confusing results.
• While screening tests are not 100% accurate in all
cases, it is generally more valuable to have the
screening tests at the appropriate times, as
recommended by your health care provider, than to n
have them at all.
• However, some screening tests, when used in people
not at high risk for disease, or when testing for very
rare diseases, can cause more problems than they
RELIABILITY AND VALIDITY
, WHAT IS A SCREENING TEST?
• A screening test is done to detect potential hea
disorders or diseases in people who do not have a
symptoms of disease.
• The goal is early detection and lifestyle changes
surveillance, to reduce the risk of disease, or to dete
it early enough to treat it most effectively.
• Screening tests are not considered diagnostic, but a
used to identify a subset of the population who shou
have additional testing to determine the presence
absence of disease
, WHEN IS A SCREENING TEST HELPFUL?
• What makes a screening test valuable is its ability to
detect potential problems, while minimizing unclear,
ambiguous, or confusing results.
• While screening tests are not 100% accurate in all
cases, it is generally more valuable to have the
screening tests at the appropriate times, as
recommended by your health care provider, than to n
have them at all.
• However, some screening tests, when used in people
not at high risk for disease, or when testing for very
rare diseases, can cause more problems than they
