Test Code LAB900 Culture, Sputum

Specimen Type
Sputum
Specimen Requirement
Sputum specimens should be collected under the direct supervision of a nurse or physician. Before collecting the specimen, the patient should gargle or rinse with water to remove superficial flora.
Expectorated: Collect the specimen in a sterile sputum system container by removing the container from bag, and lifting the top hinged lid. Instruct the patient to cough deeply to produce a lower respiratory specimen. Press the rim of the container to the patient’s lower lip to collect the specimen into the conical tube inside the container and keep the outside of the container clean. Remove the container from the conical tube and place the blue lid on the tube tightly. Dispose of the outside container.
Induced sputum: With the aid of a nebulizer, have the patient inhale 25 ml of 3-10% sterile saline. Collect the
induced sputum by using the sputum collection system as explained above.
Rejection Criteria
Reject if container is unlabeled or leaking.
Reject for inappropriate storage or transport.
Reject for excessive oral contamination as determined by Gram stain.
Storage and Transport
Transport the specimen to the Microbiology Lab within 2 hours at room temperature.
If transport is delayed, specimens may be stored at 2-8° C for up to 24 hours before testing.
Testing Schedule
Performed daily
Reference Range
No pathogens isolated or no growth in 2-3 days.
Testing Department
Microbiology
Method
Culture
CPT Code
87070 and 87205
Turnaround Time
Preliminary Result 24 hours
STAT Turnaround Time
Not Applicable