Laboratory Services

Culture, Lower Respiratory

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Updated Test Information:

Test Description
Culture, Lower Respiratory
Synonym(s)

Sputum Culture, Lower Respiratory Culture, Tracheal Aspirate, BAL, Bronchial lavage, Bronchial Brushing, Expectorated Sputum, Endotracheal Culture

Test ID
CULTRESP
Performing Lab

Labcorp

General Information

Identify significant bacterial pathogens from sputum/lower respiratory specimens and potential bacterial cause of pneumonia

Specimen Type

Lower Respiratory

Specimen Requirements

Expectorated sputum
1 to 2 mL sputum minimum


Aspirates, biopsy, tissue, bronchial washing
1 g tissue, 10 to 50 mL lavage fluid, 5 mL bronchial washing
Sterile screw-cap container

Alternate Specimen Type

Sputum, Bronchoalveolar Lavage (BAL), Bronchoalveolar Brushing, Tracheal Aspirate, Expectorated Sputum, Endotracheal Suction, Throat

Minimum Sample Volume

1 mL fluid

Stability

72 hours: 2°C to 8°C

Unacceptable Specimen Conditions

Multiple specimens (more than one in 24 hours), frozen specimen, improper labeling, delayed specimens (greater than 72 hours), or poor quality sputum (presence of greater than 10 epithelial cells per 100x field). 

Methodology

Stain/Culture

Estimated TAT

2-4 days. Positive culture reported as soon as detected.

Testing Schedule

Monday-Saturday

CPT Code(s)

87070
87205

Reference Range

No significant bacterial pathogens isolated.

Reflex Conditions

Identification and susceptibility performed on significant isolates.

LOINC Code(s)

624-7, 32355-0

Additional Information

Organism identification and susceptibility tests are billed separately from the culture.