CULTURE, EXUDATE

Mnemonic

C

Synonym

Exudate Culture - Drainage Culture - Wound Culture

Includes

Gram stain, anaerobic culture and susceptibility, if generally applicable

Guidelines

Preferably collect before therapy. Avoid swab collection if aspirates or biopsy samples are available. Do NOT use this order for actual pieces of tissue, see Culture, Tissue. Limit sampling to wounds that are clinically infected, chronic and nonhealing. Do not culture fresh bite wounds as they will contain respiratory organisms introduced with the bite and cannot predict cause of infection. Order AFB, Fungus and Virology separately.

Specimen Collection Requirements

Collect

Use culture collection-transport swab, swab in anaerobic transport tube or pus in sterile container. Collect sample from base or advancing margin of lesion.

Handling

Must specify specimen source on order or requisition. Notify Microbiology if specific organisms are being sought, such as the causative agents of Cat Scratch disease or Rat Bite Fever. Deliver to laboratory ASAP.

Preferred Volume

2 swabs, 0.50 mL

Minimum Volume

1 swab, 0.25 mL

Transport

Room temperature

Rejection Criteria

Frozen specimen, leaking or nonsterile containers, specimen in formalin type preservative

Testing Information

Performed

7 days/week

Method

Standard Aerobic and Anaerobic Bacterial Culture

Referral Lab

Samaritan Health Services

Reference Values

Reference Values

Negative

CPT Codes

87070, 87205

Last Updated: Thursday, January 5, 2017 03:42:08 AM