Correct Answer: B

Rationale: The correct answer is B: Fundus. In uterine inversion, the uterus is turned inside out, with the fundus protruding through the cervix. The fundus is the last part to be replaced during the reduction process because it is the uppermost part of the uterus. The cervix, isthmus, and body are other parts of the uterus that are not the last to be replaced in uterine inversion. The cervix is the lower part, the isthmus is the narrow portion, and the body is the main part of the uterus. Hence, the fundus is the correct choice for the last part to be replaced in uterine inversion.

Correct Answer: A

Rationale: The correct answer is A because signs of obstructed labor include a dry vagina due to prolonged pressure, oedema of the cervix due to prolonged contractions, and caput succedaneum which is swelling of the baby's scalp from prolonged pressure. Choice B is incorrect because plenty of amniotic fluid is not a sign of obstructed labor. A hot/dry vagina is not a typical sign of obstructed labor. Meconium-stained liquor can be a sign of fetal distress, but not specifically obstructed labor. Choice C is incorrect because meconium-stained liquor is a sign of fetal distress, not necessarily obstructed labor. A hot/dry vagina is not a typical sign of obstructed labor. Diluted urine is not a typical sign of obstructed labor. Choice D is incorrect because while caput succedaneum is a sign of obstructed labor, oedema of the cervix is more indicative of obstructed labor than plenty of amni

Correct Answer: C

Rationale: The correct answer is C: Not more than two previous caesarean section scars. This is because a trial of scar refers to a trial of labor in a woman who has had previous cesarean sections. The guideline typically recommends that a trial of scar should be considered in women with no more than two previous cesarean section scars to reduce the risk of uterine rupture. Choices A, B, and D are incorrect because the estimated fetal weight, availability of a level one hospital, and pelvis size are not specific criteria used to determine eligibility for a trial of scar.

Correct Answer: B

Rationale: The correct answer is B: Emergency cesarean section. Emergency cesarean sections can increase the risk of puerperal sepsis due to the urgency of the procedure, which may lead to inadequate sterilization or contamination. Other choices are less directly associated with puerperal sepsis: A may increase the risk of infection, but not specifically puerperal sepsis. C relates to general hygiene practices and D focuses on delays in seeking care, which may affect treatment outcomes but are not direct predisposing factors to puerperal sepsis.

Correct Answer: D

Rationale: Rationale for Correct Answer (D: Atelectasis): 1. Ascorbic acid deficiency can lead to impaired collagen synthesis, affecting lung tissue integrity. 2. Anemia reduces oxygen-carrying capacity, increasing the risk of lung collapse. 3. Volume contraction can lead to decreased lung compliance, predisposing to atelectasis. Summary of Incorrect Choices: A: Prolonged intubation is more related to airway issues, not specifically affected by the mentioned risk factors. B: Thromboembolism is more linked to blood clotting issues rather than the mentioned risk factors. C: Delayed wound healing is more influenced by nutritional deficiencies and blood flow, not directly linked to lung complications like atelectasis.