Test Code MRACF Culture and Sensitivity, Respiratory, Cystic Fibrosis
Additional Codes
| Epic Ordering Code | LAB3053104 |
|---|---|
| NBS code | LBC09828 |
| Service code | 23062 |
Specimen Requirements
Submit only one of the following
| Preferred |
| White sterile container |
Specimen Type: Sputum, induced sputum, ETT aspirate, tracheal aspirate, BAL
Container/Tube: Sterile screw-capped container
Volume: 2.0 mL
Minimum Volume: 0.5 mL
Collection Instructions:
Sputum:
- Rinse mouth with water to remove food particles.
- Collect 4 to 5 deep coughs into a sterile container.
- Do not send saliva.
- Cap container tightly, label, and send to the laboratory immediately.
BAL: BAL fluid is preferred to bronchial washings for bacterial culture.
Specimen Type: Throat swab. ("Cough swab" from paediatric patients who are unable to expectorate sputum)
Container/Tube: eSwab, M40 transystem Amies agar transport media (for non-NUH patients)
Volume: 1 swab
Collection Instructions: Please refer to eSwab Training Slides.
Please indicate if extended incubation is required when slow growing bacteria such as Nocardia, Actinomyces are suspected.
For non-CF patient, please use the test code "Culture and Sensitivity, Respiratory" for routine culture.
Specimen Stability and Condition
| Specimen Type | All types |
|---|---|
| Transport Condition | Submit sample to lab immediately (ambient) |
| Refrigerate |
Acceptable up to 1 day (Some groups of bacteria may be lost when refrigerated) |
| Unacceptable condition |
Frozen sample |
| Special instructions | A Gram smear is included with this test. |
Methodology
Conventional Culture
Days and Times Performed
Monday through Sunday, TAT 4 - 6 days
Reference Interval
No growth of respiratory pathogens.
Testing Laboratory
National University Hospital
Clinical Microbiology, 67724343
Useful For
Isolation of microorganisms associated with cystic fibrosis.
Update
Last updated 28/7/2026
LOINC Code Information
79425-5