What is the normal cervical length?

Prepare for the WCUI/Smith Chason Exit Assessment – Abdomen, Vascular, OB/GYN Test. Enhance your study with flashcards and detailed multiple choice questions, complete with hints and explanations. Master your exit exam with confidence!

Multiple Choice

What is the normal cervical length?

Explanation:
Normal cervical length is about 3 to 5 centimeters. This length represents the distance from the internal os to the external os along the cervical canal and is most accurately measured with a transvaginal ultrasound, especially during pregnancy. The 3–5 cm range is considered the typical normal span; lengths shorter than about 2.5 cm (before mid-pregnancy) raise concern for cervical insufficiency and higher risk of preterm birth, while lengths within 3–5 cm fit the standard normal range. Among the given options, 3–5 cm best matches this usual normal range.

Normal cervical length is about 3 to 5 centimeters. This length represents the distance from the internal os to the external os along the cervical canal and is most accurately measured with a transvaginal ultrasound, especially during pregnancy. The 3–5 cm range is considered the typical normal span; lengths shorter than about 2.5 cm (before mid-pregnancy) raise concern for cervical insufficiency and higher risk of preterm birth, while lengths within 3–5 cm fit the standard normal range. Among the given options, 3–5 cm best matches this usual normal range.

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