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Test Code C Cath Tip Catheter Tip Culture

Biohazard Infectious

Clinical System Name

Catheter Tip Culture


Cath Tip Culture

Cathether Tip Culture

Intravascular Catheter


Includes Bacterial Culture. Gram Stain is not performed. Sample is cultured for Aerobic bacteria.

Sample Requirements

Specimen: Catheter Tip

Container: Sterile Container (without any liquid or other additives) 

Preferred Vol: N/A

Minimum Vol: N/A


Processing Instructions

CPA: Send sample to Microbiology for processing. 


Off-site collection:  Cath Tip cultures are not set up at Off-site Children's Lab locations. Sample should be kept at room temperature for courier pickup and delivery to SCH Micro.




Temp Time
Room temp 2 h
Refrigerated N
Frozen N



Procedure Performed Turn Around Time (TAT)
Gram Stain N/A


Culture 24/7 48 - 72 hours

Cultures are read at appropriate intervals to detect early bacterial growth. STAT culture requests are not applicable.

Note: Gram Stains are not performed on Cath Tip cultures.


Performing Laboratory

Seattle Children's Laboratory



Microbiology Laboratory

CPT Codes



This test is not limited to the CPT codes listed.  Others may be added as more testing is necessary and depending on the pathogens isolated (example: MIC's and ID's).

Reporting Information

Preliminary Report:  18 - 24 hours

Negative Final Report: 48 hours


Growth of >15 colonies of a single organism is considered positive.


Notifiable Result

See Link below for Notifiable Conditions for WA state labs:


See Link below for PDF of phone numbers for Local Health jurisdictions (by County) in WA State: