Sign in →

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