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Difficulty: EasyClinical Preventive Services and Screening

A 25-year-old woman presents for a routine well-woman examination. Arrange the following steps in the correct chronological order for the appropriate cervical cancer screening and subsequent clinical management of this patient according to current guidelines.

  1. 1Perform primary screening with cervical cytology alone.
  2. 2Identify atypical squamous cells of undetermined significance (ASC-US) on the cytology report.
  3. 3Conduct reflex high-risk human papillomavirus (HPV) DNA testing.
  4. 4Proceed with colposcopy for direct visual assessment.

Answer

The correct sequence is: perform primary screening with cervical cytology alone, identify ASC-US on the report, conduct reflex high-risk HPV DNA testing, and proceed with colposcopy.
The sequence follows the standard algorithmic approach to cervical cancer screening and management. A 25-year-old woman first undergoes routine cervical cytology. When this results in ASC-US (a borderline abnormal finding), the most appropriate triage step is reflex high-risk HPV testing. Because this triage test is positive, the patient must subsequently undergo colposcopy for direct visual assessment and potential biopsy to rule out high-grade cervical dysplasia.

Step-by-Step Solution

1
Identify the appropriate initial screening test for a 25-year-old woman.
Cervical cytology alone.
Current USPSTF guidelines recommend cervical cytology every 3 years for women aged 21 to 29 years, as opposed to primary HPV testing or co-testing.
2
Identify the abnormal finding that requires triage.
ASC-US cytology result.
An abnormal finding such as ASC-US is necessary to prompt further investigation beyond routine scheduled screening.
3
Select the appropriate triage step for ASC-US.
Reflex high-risk HPV testing.
Reflex HPV testing determines whether the ASC-US is related to a high-risk HPV infection, which carries a higher risk of progression to cervical cancer.
4
Determine the definitive diagnostic step for a positive triage test.
Colposcopy.
If high-risk HPV is detected in the setting of ASC-US, colposcopy is indicated to visually assess the cervix and obtain biopsies of any suspicious areas.

Key Concept

Cervical cancer screening guidelines and the stepwise management of atypical squamous cells of undetermined significance (ASC-US) in women aged 21-29.
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Topics

Clinical Preventive Services and Screening

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