Sputum Specimen Collection
Amount To Collect
5 ml (about 1 teaspoon) is the necessary amount for most tests on sputum. However, multiple tests are often ordered so more specimen may be necessary. Also some testing is best done on serial specimens, therefore, you may be asked to collect for 3 days in a row.
When To Collect
It is best to collect sputum specimens the first thing in the morning when you get up. Collect specimens only at that time unless instructed to do otherwise by hospital personnel or your physician.
The sputum collection containers may be obtained from the physician's office or from the laboratory. These are sterile and should be opened only when putting in specimen. After specimen is obtained replace the lid tightly on the cup and return to the laboratory within 2 hours.
If you are asked to collect sputum for multiple days (i.e. 2 or 3), each day's specimen must be delivered to the laboratory within the 2 hour time frame.
How To Collect
Gargle and rinse your mouth with water just after you get up and before you collect the specimen. (This helps to eliminate accumulated cells arid normal bacteria that may interfere with your test results.)
Inhale repeatedly to the full capacity of your lungs and exhale the air with an explosive cough. This should produce mucus from the lungs that is to be expectorated into the container. The specimen MUST BE FROM THE LUNGS. "Spit" from the mouth is inadequate and will give incorrect results to your physician.
After The Specimen Is Collected
Transport specimen within 2 hours to the lab and give directly to lab personnel. When more than one specimen has been ordered, collect specimens on consecutive mornings. Transport each specimen as collected to the laboratory.