In a pregnant woman, the hegar's sign occurs at?

Appeared in: PGIMER Sangrur NO - 2023

Explanation

Hegar's sign is a probable sign of pregnancy characterized by the softening of the lower uterine segment, also known as the isthmus.
It is detected during a bimanual pelvic examination, where the examiner can compress the softened isthmus between the vaginal and abdominal fingers.
According to obstetric literature, this sign appears early in gestation, typically between the 6th and 10th week.
Among the given choices, 6 weeks represents the earliest point at which Hegar's sign can be detected.

Option B: While Hegar's sign is present at 8 weeks, this is not its earliest appearance. The sign can be detected from 6 weeks onwards.
Option C: 10 weeks is near the end of the period when Hegar's sign is most prominent, not its initial appearance.
Option D: At 12 weeks of gestation, the uterus has enlarged sufficiently to become an abdominal organ, making the bimanual examination to elicit Hegar's sign difficult or impossible.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Timing of Probable Signs of Pregnancy as background academic context rather than a clinical decision trigger.
Recognizing probable signs of pregnancy, like Hegar's sign, is a fundamental skill for nurses and midwives. It aids in the early diagnosis of pregnancy and the timely initiation of antenatal care.
It is important to remember that these are 'probable' signs, not 'positive' signs. Conditions other than pregnancy (e.g., uterine fibroids) can sometimes cause uterine softening, so confirmation with a positive sign (like ultrasound visualization of the fetus) is essential.
Patient education is key. A nurse should be able to explain these early changes to the expectant mother to reassure her and encourage adherence to antenatal appointments.

How to Approach the Question

First, identify the key term in the question: 'Hegar's sign'.
Recall the definition of Hegar's sign, which is the softening of the lower uterine segment.
Access your knowledge about the timeline of pregnancy signs. Remember that Hegar's sign is one of the early probable signs.
Recall the specific time frame for its appearance, which is typically between 6 to 10 weeks of gestation.
Compare this time frame to the options provided: 6 weeks, 8 weeks, 10 weeks, and 12 weeks.
Select the option that represents the earliest point in this range, which is 6 weeks.

Concept Tested & Keywords

Concept Tested: Timing of Probable Signs of Pregnancy
Stem keywords: pregnant woman, hegar's sign
Lead-in keywords: occurs at
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.
Negative lead-in flag: false

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E6 Midwifery Obstetrics and Gynecology Nursing Sandeep Kaur p. 7-12

Practise the full PGIMER Sangrur NO - 2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.