Which of the following is the confirmatory diagnostic investigation for cervical cancer?

UPRVUNL - 2021

Obstetrics & Gynaecology

Easy

Appeared in: UPRVUNL - 2021

Explanation

A biopsy is the definitive or 'gold standard' method for diagnosing cervical cancer.
It involves the removal of a small tissue sample from the cervix for microscopic examination, a process known as histopathology.
This examination is the only method that can directly identify and confirm the presence of malignant (cancerous) cells, distinguishing them from pre-cancerous changes or benign conditions.
An abnormal Pap smear result is the most common reason to perform a cervical biopsy.

Option A: A CT (Computed Tomography) scan is an imaging study used for staging cancer, not for initial diagnosis. It helps determine if the cancer has spread to lymph nodes or other organs after a diagnosis has been confirmed.
Option B: A 'Uterine scan,' typically an ultrasound, is an imaging technique. While it can visualize the uterus and cervix and may identify a mass, it cannot differentiate between benign and malignant tissue. It cannot confirm a cancer diagnosis.
Option D: A Pap smear is a screening test, not a confirmatory diagnostic test. It is designed to detect abnormal cells on the cervix that require further investigation.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Confirmatory diagnostic procedures for cervical cancer as background academic context rather than a clinical decision trigger.
Nurses play a vital role in patient education, explaining the difference between a screening test (Pap smear) and a diagnostic test (biopsy). This helps manage patient anxiety and ensures compliance with follow-up appointments.
Nursing responsibilities include preparing the patient for a biopsy procedure, obtaining informed consent, and providing post-procedure care instructions, such as monitoring for bleeding or signs of infection.
What if? If a patient has a normal Pap smear but reports persistent symptoms like post-coital bleeding, a nurse should recognize this as a red flag. The patient should be encouraged to see their provider for further evaluation, which may include a colposcopy and biopsy, as Pap smears can have false-negative results.

How to Approach the Question

First, identify the key term in the question: 'confirmatory'. This asks for the test that provides a definitive diagnosis.
Next, analyze the purpose of each option. Categorize them as either screening, diagnostic, or staging tests.
Recall that a Pap smear is a widely known screening tool used for early detection of cellular changes.
Recognize that CT scans and other imaging are primarily used for staging—that is, determining the extent of the disease after it has been diagnosed.
Conclude that a biopsy, which involves examining the actual tissue, is the only option that can definitively confirm the presence of cancer cells.
Therefore, select the option that represents the definitive diagnostic procedure.

Concept Tested & Keywords

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