Heavy Bleeding Investigation: Initial Assessment

The patient presents with heavy, prolonged menstrual bleeding (menorrhagia). The goal is to identify the investigation least likely to be recommended as an initial step.

Evaluating Diagnostic Options

• Urine pregnancy test: Essential first step to rule out pregnancy-related complications (e.g., miscarriage, ectopic pregnancy) as a cause for abnormal bleeding.
• Ultrasound uterus and adnexa: A standard imaging technique to visualize the pelvic organs and identify structural abnormalities like fibroids or polyps that can cause heavy bleeding.
• Coagulation profile: Necessary to screen for underlying bleeding disorders (e.g., Von Willebrand disease), which can manifest as heavy menstrual bleeding, particularly in young patients.
• Dilatation and curettage (D&C): An invasive procedure involving cervical dilation and scraping of the uterine lining. While it can be diagnostic or therapeutic, it's typically reserved for specific situations or after less invasive methods have been explored.

Rationale for Excluding D&C Initially

For an 18-year-old unmarried girl with heavy menstrual bleeding, the initial approach focuses on less invasive diagnostic methods. A pregnancy test is crucial. Ultrasound helps assess anatomical causes. Blood tests, including a coagulation profile, screen for systemic issues.

Dilatation and curettage (D&C) is generally NOT considered an initial investigation for heavy menstrual bleeding in this demographic. It is more invasive and usually performed if initial investigations are inconclusive, bleeding is severe and requires immediate intervention, or if malignancy is suspected (though rare at this age). Therefore, it is the investigation NOT usually advised first.