Lower Respiratory Culture for Cystic Fibrosis

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General Information

Lab Name
Lower Respiratory Culture_CF
Lab Code
LRSCFC
Epic Ordering
Culture Resp Lower, Bact CF Patient
Description

This test is also acceptable for patients with a diagnosis of bronchiectasis.

Susceptibility panel for cystic fibrosis lower respiratory cultures:

The Sensititre Gram Negative GNX2F® susceptibility test panel is a micro-dilution susceptibility test to determine quantitative antimicrobial susceptibilities of Enterobacteriaceae and Non-Enterobacteriaceae. Panels are innoculated with a standardized suspension of expontentially growing organisms and incubated at 35°C for 24 to 48 hours. The minimum inhibitory concentrations (MIC) for the test organism are determined by assessing the lowest antibacterial concentration showing inhibition of growth.

This test was developed and the performance characteristics determined by the University of Washington Department of Laboratory Medicine. It has not been cleared or approved by the US Food and Drug Administration. This test is used for clinical purposes. It should not be regarded as investigational or for research. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) as qualified to perform high complexity clinical laboratory testing.

Synonyms
Components

Interpretation

Reference Range
See individual components

Ordering & Collection

Specimen Type
Sputum. Post transplant CF patients only: ESwab or Amies gel transport swab
Collection

Sputum: obtain specimen from deep cough (usually in AM), induction or intubation; do not send saliva.

Handling Instructions

Transport specimens in a sterile, leak-proof container, ideally within 2 hours of collection at room temperature or up to 24 hours refrigerated.

Specimens will be rejected if received > 24 hours after collection. Viability of organisms is significantly reduced after 24 hours.

Quantity
requested: 2-5 mL sputum
minimum: 1 mL sputum or swab (post transplant CF only)

Processing

Processing

Performance

LIS Dept Code
Microbiology (MC)
Performing Location(s)
UW-MT Microbiology
206-520-4600

Clinical Lab, Room # NW177,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195
Other Locations/Notes

UW-MT Microbiology performs testing for UW-MT and UW-NW.

Frequency
Processed upon receipt
Available STAT?
No

Billing & Coding

CPT codes
87070, 87081
LOINC
623-9
Interfaced Order Code
UOW618