Genital swabs and labels

Step 10: Genital Swabs

Recover foreign DNA from genital area. Prior to collecting swabs from an unresponsive or unconscious patient, it is recommended to consult facility’s risk manager or legal personnel.

Female Patient

Recover foreign DNA from vulva swabs.

Patients may collect their vulva swabs with guidance from health care professional as the process is trauma-informed and patient-centered care. For chain-of-custody purposes, patients must be observed by the examiner while collecting their own vulva swabs. Document self-swabbing.

  1. Put on new gloves
  2. Swab the vulva with two swabs total (simultaneously)
  3. Swab the inner labia majora, labia minora and hymen
    • Avoid the urinary meatus
    • It may be necessary to pre-moisten the cotton-tipped applicators with sterile water
  4. Place the two swabs into a swab box
  5. Close both ends of the box
  6. Label box
  7. Place labeled box in the vulva/scrotal swab envelope
  8. Label and seal the envelope with examiner’s initials
  9. Place envelope in the SAEK

Recover foreign DNA from vaginal/cervical swabs.

Patients may collect their vaginal swabs with guidance from health care professional as the process is trauma-informed and patient-centered care. For chain-of-custody purposes, patients must be observed by the examiner while collecting their own vaginal swabs. Document self-swabbing.

  1. Change gloves
  2. Insert vaginal speculum
  3. Gently place two swabs slightly in the cervical os, hold for 5–10 seconds, swab the surface of the cervix, then swab the posterior fornix (bottom of cervix and the space below the cervix) of the vagina
  4. Remove speculum
  5. Place the two swabs into a swab box
  6. Close both ends of the box
  7. Label box
  8. Place labeled box in the vaginal/cervical/penile swab envelope
  9. Label and seal the envelope with examiner’s initials
  10. Place envelope in the SAEK

Male Patient

Recover foreign DNA from penile swabs.

Patients may collect their penile swabs with guidance from health care professional as the process is trauma-informed and patient-centered care. For chain-of-custody purposes, patients must be observed by the examiner while collecting their own penile swabs. Document self-swabbing.

  1. Change gloves
  2. Pre-moisten two swabs and swab the head of the penis, staying away from the urethral meatus
  3. Use same two swabs to swab under the foreskin and the shaft of the penis
  4. Place the two swabs into a swab box
  5. Close both ends of the box
  6. Label box
  7. Place labeled box in the vaginal/cervical/penile swab envelope
  8. Label and seal the envelope with examiner’s initials
  9. Place envelope in the SAEK

Recover foreign DNA from scrotal swabs.

Patients may collect their scrotal swabs with guidance from health care professional as the process is trauma-informed and patient-centered care. For chain-of-custody purposes, patients must be observed by the examiner while collecting their own scrotal swabs. Document self-swabbing.

  1. Change gloves
  2. Pre-moisten two swabs
  3. Use two swabs to swab the scrotum
  4. Prior to collecting swabs from an unresponsive or unconscious patient, it is recommended to consult facility’s risk manager or legal personnel
  5. Place the two swabs into a swab box
  6. Close both ends of the box
  7. Label box
  8. Place labeled box in the vulva/scrotal swab envelope
  9. Label and seal the envelope with examiner’s initials
  10. Place envelope in the SAEK

For more information on collecting genital swabs see the Protocol.