DOCTOR INFORMATION
Vaginal Swabs (OSCE)
Introduction
- Greet patient and introduce yourself
- Explain the procedure in a patient friendly manner
- Explain that a chaperone will be present throughout the procedure and why
- Get patient consent β
- Check the patient is not in any pain or pregnant π€°
- Ask patient to remove underwear whilst you leave the room, and cover themselves with the sheet provided
Equipment
Disposable gloves β
Paper towels
Lubricant
Speculum and light
High vaginal swab in charcoal
Endocervical swab in charcoal
Endocervical nucleic acid amplification test (NAAT)
Inspection of the vulva
Inspection:
- Don gloves β
- Ask patient to lie in the supine position then move their heels to their bottom, relaxing their knees so that they fall outwards
- Assess the vulva to identify abnormalities
Scars: indicate prior surgery or lichen sclerosus
Masses: indicates Bartholinβs cyst or vulval malignancy
Ulcers: indicate genital herpes
Varicosities: varicose veins due to pelvic obstruction (e.g. malignancy) or chronic venous disease
White lesions: patchy, surrounding vulva or anus, indicates lichen sclerosus
Vaginal atrophy: typically present in post-menopausal women
Abnormal vaginal discharge: indicates bacterial vaginosis, candidiasis, chlamydia or gonorrhoea
Insert the speculum:
- Get consent to insert speculum again β
- Separate labia using left hand β
- Insert the speculum gently, with it oriented sideways
- Once it is inserted, rotate it 90Β° π
- Open blades to obtain optimum visualisation of the cervix
- Fix the blades at this position by tightening the locking nut
Cervix visualisation
Inspect the cervix:
Masses: indicate cervical malignancy
Ulcers: indicate genital herpes
Open cervical os: indicates inevitable/incomplete miscarriage
Erosion surround os: indicates ectropion or early cervical cancer
Abnormal discharge: indicates trichomonas, bacterial vaginosis, candidiasis, chlamydia or gonorrhoea
Vaginal Swabs
Technique:
- Remove lid of swab sample tube
- Use swab to take relevant samples
- Put used swab back in its tube and put the lid back on
- Place tube in tray
Should I take double or triple swabs β
This depends on local guidelines β
Double: Endocervical nucleic acid amplification test (NAAT) and high vaginal swab in charcoal
Triple: Endocervical nucleic acid amplification test (NAAT) and high vaginal swab in charcoal and Endocervical swab in charcoal
First: Endocervical nucleic acid amplification test (NAAT):
- Use the cleaning swab to remove excess mucous from the cervix to allow better visualisation of the external os
- Insert testing swab 5mm into endocervix
- Rotate swab for 10 to 15 seconds β
- Remove swab from cervix, break it at the score line and put it in transport tube
- Put lid back on sample
Detects: chlamydia and gonorrhoea
Second: endocervical swab in charcoal:
- Insert testing swab 5mm into endocervix
- Rotate swab for 10 to 15 seconds β
- Remove swab from endocervix, break it at the score line and put it in transport tube
- Put lid back on sample
Detects: gonorrhoea
Third: high vaginal swab in charcoal:
- Insert swab into posterior fornix (discharge pools here)
- Rotate swab for 10 seconds β
- Remove swab from posterior fornix, break it at score line and put it in sample tube
- Put lid back on sample
Detects: candida, bacterial vaginosis, trichomonas vaginalis, group B streptococcus
Speculum removal
- Loosen locking nut
- Close blades slightly
- Rotate speculum 90Β° (inspect vaginal walls simultaneously) π
- Use sheet to cover patient
- Tell patient the examination is complete and you will leave the room to allow them to change β
- Appropriately dispose of waste π
- Wash hands β
Completion
- Label samples appropriately β
- Thank patient
- Inform patient they will receive results via method requested
- Document procedure β
- Send swabs to the lab to process
Summary:
- Greet the patient and explain the procedure
- Inspect the vulva to identify any abnormalities
- Insert the speculum into the vagina and fix it into place by tightening the locking nut
- Inspect the cervix to identify any abnormalities
- Take double or triple vaginal swabs, depending on local guidelines
- Remove speculum by loosening locking nut, closing blades and rotating it
- Complete procedure by thanking patient and sending swabs to lab
Related Articles
This step by step guide is designed to take you through the Cervical Screening Test, also known as Smear Test in OSCEs.