Test Code EARGS EAR CULTURE WITH GRAM STAIN
Methodology
Conventional Culture Technique
Includes Gram stain.
Specimen Requirements
Submit only 1 of the following specimens:
Inner Ear
Intact Eardrum
Container/Tube: Sterile container(s)
Specimen Volume: 0.5 mL of fluid
Collection Instructions: Tympanocentesis is reserved for complicated, recurrent, or chronic persistent otitis media.
1. Clean ear canal with soap solution, aspirate fluid via syringe aspiration technique by a physician trained in this procedure.
2. Label container with patient’s legal name, date and actual time of collection, and type of specimen.
Note: 1. Specimen source is required.
2. If anaerobes are suspected, collect specimen using sterile technique and place into anaerobic transport device, see ANAER “Culture, Anaerobic.”
Inner Ear
Ruptured Eardrum
Container/Tube: Swab(s)
Specimen Volume: Entire specimen
Collection Instructions:
1. Collect fluid on 1 flexible-shaft swab (ie, culture swab via
auditory speculum).
2. Insert swab into moist sponge in swab container to preserve
specimen.
3. Label container with patient’s legal name, date and actual time of collection, and type of specimen.
Note: 1. Specimen source is required.
2. If anaerobes are suspected, collect specimen using sterile technique and place into anaerobic transport device, see ANAER “Culture, Anaerobic.”
Outer Ear
Container/Tube: Swab(s)
Specimen Volume: Entire specimen
Collection Instructions:
1. Use a sterile swab moistened with sterile saline to remove any debris or crust from ear canal.
2. Obtain specimen by firmly rotating 2 culture swabs in outer canal.
3. Insert each swab into moist sponge in swab container to preserve specimen.
4. Label container with patient’s legal name, date and actual time of collection, and type of specimen.
Note: 1. Specimen source is required.
2. If anaerobes are suspected, collect specimen using sterile technique and place into anaerobic transport device, see ANAER “Culture, Anaerobic.”
Day(s) Test Set Up
Monday through Sunday
Reference Values
No growth
Performing Laboratory
Logan Health Medical Center Laboratory
Test Classification and CPT Coding
87070-Culture
87205-Gram stain
87076-Anaerobic identification, each (if appropriate)
87077-Aerobic identification, each (if appropriate)
87184-Kirby-Bauer, each (if appropriate)
87186-MIC, each (if appropriate)
Specimen Transport Temperature
Ambient/Refrigerate NO/Frozen NO