Total Weight gain during pregnancy is?

Appeared in: MNS 2015

Explanation

The average total weight gain for a woman with a desirable body weight during a full-term pregnancy is approximately 11–13 kg.
This value is a standard reference point in antenatal care for assessing maternal and fetal well-being.
The weight gain is attributed to the fetus, placenta, amniotic fluid, growth of the uterus and breasts, increased blood volume, and maternal fat stores.
Weight gain is not linear; it is slower in the first trimester (about 1 kg) and accelerates in the second and third trimesters (about 0.5 kg/week).

Option A: A weight gain of 9 kg is below the average for a woman with a normal BMI. It falls at the lower end of the recommended range (11.5-16 kg) and might be considered insufficient.
Option B: 10 kg is still below the accepted average of 11-13 kg for a healthy pregnancy in a woman with a normal BMI.
Option D: While 12 kg is within the healthy range (11-13 kg), 11 kg is more commonly cited as the average figure for calculation and general guidance.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Physiological changes during pregnancy, specifically average weight gain as background academic context rather than a clinical decision trigger.
Monitoring weight gain is a fundamental aspect of antenatal care. It serves as a non-invasive screening tool for potential complications.
Nurses are responsible for accurately measuring and tracking weight at each visit, plotting it on a chart, and educating the mother on healthy nutrition to meet her target.
Sudden or excessive weight gain requires prompt investigation for preeclampsia, including blood pressure measurement and urine testing for proteinuria.

How to Approach the Question

This is a factual recall question that tests your knowledge of a standard physiological value in obstetrics.
First, identify the key concept: 'Total Weight gain during pregnancy'.
Recall the average value for a healthy woman with a normal pre-pregnancy BMI. The standard figure is around 11 kg or 25 pounds.
Scan the options to find the value that most closely matches this standard figure.
Select the option for 11 kg, recognizing it as the most commonly cited average in nursing and medical literature.

Concept Tested & Keywords

Concept Tested: Physiological changes during pregnancy, specifically average weight gain.
Stem keywords: Total Weight gain, pregnancy
Lead-in keywords: BEST, MOST RELEVANT CLUE
Negative lead-in flag: false

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E6 Nutrition Kumud Khanna 2e p. 80-82

E6 Physiology Guyton 4SAE Part 3 p. 61-63

Practise the full MNS 2015

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