Slide Examination – Genital Smear
Conformément au Règlement de l’Ontario 671/92 de la Loi sur les services en français, les renseignements d’analyses de laboratoire liés à la présente page ne sont offerts qu’en anglais parce qu’ils sont de nature scientifique ou technique et destinés uniquement à l’usage des fournisseurs de soins de santé qualifiés et non aux membres du public.
Specimen Requirements
| Test Requested | Required Requisition(s) | Specimen Type | Minimum Volume | Collection Kit |
Slide examination
Bacterial vaginosis (BV) and/or Trichomonas/Trichomonas vaginalis and/or yeast |
Genital – female vaginal, male urethral |
Neisseria gonorrhoeae Culture Kit (6-Pack); Kit order#: 390051 |
Submission and Collection Notes
The PHO GC kit/Neisseria gonorrhoeae culture kit (kit order # 390051) is sent with slides and swabs for preparing slide examinations if required.
Unsuitable specimens: Only the sites indicated above are acceptable for testing, other specimen sources will not be accepted. Broken or chipped slides, and unlabeled slides are not acceptable and testing will not be performed.
Make a thin smear by rolling the swab on the microscopic slide.
Female vaginal smears are observed for bacterial vaginosis (BV), pus cells, Trichomonas species and yeast-like cells. Smear preparations from pre-pubertal female patients (i.e. ≤ 12 years) will only be tested for pus and yeast cells. Trichomonas and bacterial vaginosis (BV) results will only be reported if requested on the requisition.
Male urethral smears are observed for intracellular gram negative diplococci (GNDC), suggestive of Neisseria gonorrhoeae infection and pus cells. Trichomonas and/or yeast results will only be reported if requested on the requisition.
Storage and Transport
Label the frosted portion of the slide with the patient’s name (or initials), one other identifier and the site. Failure to provide this information may result in rejection or testing delay. Allow the smear preparation to air dry completely before placing in the slide mailer; secure with elastic band, if necessary.
Test Frequency and Turnaround Time (TAT)
Slide examination testing for genital smears is performed daily, Monday to Friday.
Turnaround time is up to 4 days from receipt by PHO laboratory.
Smears are heat fixed and stained by Gram staining techniques.
Interpretation
For female smear preparations, pus cells, Trichomonas vaginalis, and yeast are interpreted as present or not present. Bacterial counts are performed to interpret the overall direct smear as a normal, altered or bacterial vaginosis presentation.
For male smears, pus cells and intracellular gram negative diplococci are interpreted as present or not present.
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