UPSC CMS 2026 Exam β€” August 2, 2026. Revise smart with India's #1 CMS resource. Get Books
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True Labor / Onset β€” UPSC CMS MCQs (Obstetrics & Gynaecology) · 3 questions

2023 P2 Q46

Q1. Which of the following are the characteristics of true labor pains? 1. Intensity and duration of contractions increase progressively 2. Progressive effacement and dilatation of the cervix 3. Formation of the β€˜bag of forewaters’ 4. Pain is confined to lower abdomen and groin Select the correct answer using the code:

  1. 1, 2 and 3
  2. 1, 2 and 4
  3. 2, 3 and 4
  4. 1, 3 and 4

Answer & explanation β€” reveal it in the interactive practice above.

PYQ 2020–2025 β€” page 253

2024 P2 Q45

Q2. Which of the following features are correct regarding onset of true labour? 1. Regular uterine contractions 2. Progressive cervical dilation and effacement 3. Presence of show 4. Labour and delivery are synonymous Select the correct answer using the code:

  1. 1, 2 and 3
  2. 1, 2 and 4
  3. 1, 3 and 4
  4. 2, 3 and 4

Answer & explanation β€” reveal it in the interactive practice above.

PYQ 2020–2025 β€” page 335

2024 P2 Q48

Q3. Onset of labour is initiated by which of the following? 1. Uterine distension 2. Increased CRH and ACTH from foetal hypothalamic-pituitary-adrenal axis 3. Increased level of progesterone immediately before labour 4. Increased synthesis of myometrial receptors for oxytocin due to effect of oestrogen Select the correct answer using the code:

  1. 1, 2 and 3
  2. 1, 2 and 4
  3. 1, 3 and 4
  4. 2, 3 and 4

Answer & explanation β€” reveal it in the interactive practice above.

PYQ 2020–2025 β€” page 336

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