Reasons you may not be able to
have the test or why the results may not be helpful include a sample that is
too small; is dried out; contains only saliva; or is from nasal secretions, not
What To Think About
There is a chance of
false-negative test results with sputum cytology. This
means that the test shows a lung condition is not present when it actually
is present. Follow-up testing may need to be done if your symptoms
A sputum culture is a test to find and
identify bacteria or fungi that are infecting the lungs or breathing passages.
It is also done to identify the best antibiotic to treat a lung infection. To learn more, see the topic
a needle lung
biopsy are more commonly used than sputum cytology
because the results provide more information about airway problems.