The normal non-pregnant uterus weighs in gm is?

ESIC Nursing Officer 2016 (shift-1)

Obstetrics & Gynaecology

Easy

Appeared in: ESIC Nursing Officer 2016 (shift-1)

Explanation

The standard accepted weight for a normal, non-pregnant uterus in a nulliparous woman (one who has not given birth) is approximately 60 grams.
Uterine weight varies based on parity. After pregnancy, the uterus remains slightly larger and heavier than its pre-pregnancy state.
Sources indicate the weight of a non-pregnant uterus ranges from about 50 g to 70 g, making 60 g the most accurate average among the choices.
During pregnancy, the uterus undergoes massive hypertrophy, increasing in weight from about 50-70 g to approximately 1100 g by term.

Option A: A weight of 95 grams is significantly above the normal range for a nulliparous, non-pregnant uterus.
Option B: A weight of 80 grams is heavier than the average for a nulliparous woman.
Option D: While within the lower limits of the normal range, 50 grams is less representative of the average weight than 60 grams.

Visual 1: Diagram - A comparative illustration showing the relative size and shape of a nulliparous uterus, a multiparous uterus, and a uterus at full-term pregnancy. This helps visualize the changes in size and weight discussed.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Normal anatomy and physiology of the uterus as background academic context rather than a clinical decision trigger.
Assessing uterine size is a fundamental part of the bimanual pelvic exam. A nurse or doctor palpates the uterus to check for normal size, shape, and consistency. An enlarged or irregularly shaped uterus can signal the need for further investigation, such as an ultrasound.
Deviations from the normal weight and size can indicate pathologies. For example, a bulky, tender uterus might suggest adenomyosis, while a firm, irregularly enlarged uterus could indicate fibroids.
What if? If the question specified a 'multiparous woman,' an answer of 80 g would be more appropriate, as the uterus typically weighs more after one or more pregnancies.

How to Approach the Question

This is a factual recall question that tests your knowledge of basic anatomy and physiology.
Identify the key terms in the question: 'normal', 'non-pregnant uterus', and 'weighs'.
Recall the standard anatomical values for the female reproductive organs.
Recognize that 'normal' in this context typically refers to the baseline state, which is a nulliparous woman (has not given birth).
Compare the given options to the known average weight of a nulliparous uterus (around 60 g).
Eliminate options that are too low (50 g, less common average) or too high (80 g, 95 g), which are more typical for a multiparous woman or a pathological state.

Concept Tested & Keywords

Concept Tested: Normal anatomy and physiology of the uterus.
Stem keywords: normal, non-pregnant, uterus, weighs, gm
Lead-in keywords: BEST, MOST RELEVANT CLUE
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.

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