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Clear
 
Test Code:
090-40-0220-01

Order Name:
Ear C/S

 
Useful For:
Diagnosis of bacterial infections
 
Methodology:
  1. Conventional Culture Technique
  2. Identification by MALDI-TOF
  3. Suceptibility test by Vitek 2 Compact
 
AliasesName:
Aerobic culture
Aerobic bacteria culture
Culture, General Bacteria
Bacteria cullture
 
 
 
Test Code:
090-40-0220-01

Order Name:
Ear C/S

 
Patient Preparation:
Medications: Do not use antibiotics before collection of specimen
 
Collection Specimen Or Container:
Ear/ Stuart transport medium or Sterile container

Inner Ear:
Tympanocentesis reserved for complicated, recurrent, or chronic persistent otitis media.
  1. For intact ear drum, clean ear canal with soap solution and collect fluid via syringe aspiration       technique (tympanocentesis).
  2. For ruptured ear drum, collect fluid on flexible shaft swab via an auditory speculum                         (aerobic culture only)
Outer Ear:
  1. Use a moistened swab to remove any debris or crust from the ear canal
  2. Obtain a sample by firmly rotating swab in the outer canal.
 
Specimen Testing Type:
Ear, volume Entire collection  or Sterile container
 
Sub Mission Container:
Stuart transport medium  or Sterile container
 
Rejection Criteria:
Specimen in formalin or dry swab will be reject.
 
Specimen Stabillity:
Specimen Type Temperature Time
Ear Room temperature, 18oC to 25oC 24 hours
 
 
 
Test Code:
090-40-0220-01

Order Name:
Ear C/S

 
Method detail:
  1. Conventional Culture Technique
  2. Identification by MALDI-TOF
  3. Suceptibility test by Vitek 2 Compact
 
Schedule:
Tested daily (24 hours)
 
Turnaround Time:
Received specimen to report within 3 days.
 
Performing Location:
Microbiology, Laboratory Department Tel. 14171
 
Specimen Retention Time:
7 days
 
 
 
Test Code:
090-40-0220-01

Order Name:
Ear C/S

 
 
Clinical Information:
An ear infection (sometimes called acute otitis media) is an infection of the middle ear, the air-filled space behind the eardrum that contains the tiny vibrating bones of the ear. Children are more likely than adults to get ear infections. Because ear infections often clear up on their own, treatment may begin with managing pain and monitoring the problem. Sometimes, antibiotics are used to clear the infection. Some people are prone to having multiple ear infections. This can cause hearing problems and other serious complications. The following organisms have been recovered from tympanocentesis: S pneumoniae , H influenzae , Moraxella (Branhamella) catarrhalis , Streptococcus pyogenes, Staphylococcus aureus , Pseudomonas aeruginosa. E coli, Klebsiella pneumoniae, Pseudomonas aeruginosa may be isolated from neonates. In therapeutic failures, S aureus, and P aeruginosa are most frequently recovered. Otitis externa is frequently caused by P aeruginosa and less frequently by Candida sp, Proteus sp, S aureus, and Trichophyton sp.
 
Reference Value:
No growth or usual flora
 
Interpretation:
Any microorganism found where no resident flora is present is considered significant and is reported. For specimens contaminated with the usual bacterial flora, bacteria that are potentially pathogenic are identified.
 
Clinical Reference:
  1. Amy L. Leber, editor. Clinical Microbiology Procedure Handbook 4th Edition. Washington DC: American Society for Microbiology; 2016
  2. James H. Jorgensen, Michael A. PFALLER. Manual of Clinical Microbiology 11th ed. Washington, DC: ASM Press; 2015
  3. https://www.mayocliniclabs.com (Retrieved: 29 Jan 2019)