Correct Answer: B

Rationale: The correct answer is B: A surgical procedure in which the cartilage of the pubic symphysis is divided. Pubiotomy involves cutting the pubic symphysis cartilage to widen the pelvic outlet during difficult childbirth. This procedure helps facilitate labor by increasing the pelvic diameter. Choices A, C, and D are incorrect because they do not accurately describe pubiotomy. Choice A refers to accessing the lower uterine segment, choice C involves ligating pubic bones for cancer, and choice D pertains to perineal tissue dissection during labor, which are unrelated to pubiotomy.

Correct Answer: B

Rationale: The correct answer is B: Pneumothorax. Respiratory distress syndrome is characterized by difficulty breathing due to immature lungs in premature infants. Pneumothorax, a condition where air leaks into the chest cavity, is a common complication as the fragile lungs are prone to air leaks. Cerebral palsy (A), epilepsy (C), and fractured ribs (D) are not direct complications of respiratory distress syndrome. Pneumothorax is the most likely and common complication due to the fragility of the premature infant's lungs.

Correct Answer: A

Rationale: The correct answer is A because monozygotic twins, also known as identical twins, develop from a single fertilized egg and share the same genetic material. This results in them always being of the same sex. Choice B is incorrect because fingerprint patterns are not solely determined by genetics. Choice C is incorrect because monozygotic twins will have the same blood group since they share the same DNA. Choice D is incorrect because superfetation, the fertilization of multiple eggs at different times during the same pregnancy, is not common in monozygotic twins.

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: 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.