Infectious Disease Laboratories:Microbiology
5.0 mL (minimum 1.0 mL)
Cause for rejection:
Specimen received in nonsterile container. Sputum specimen containing food particles. Specimen sent on swab is not appropriate for culture.
Sputum culture includes gram stain to check the quality of the specimen. A gram stain showing >25 squamous epithelial cells indicates that the specimen is contaminated with saliva and should be repeated if possible. The laboratory will communicate with the nurse or doctor if the specimen is contaminated to ascertain whether the specimen should be cultured. A CF patient will be processed regardless of gram stain result per CF protocol.
Preliminary report available after 24 hours
CF (cystic fibrosis) Sputum Culture