Correct Answer: D

Rationale: The use of bed cradle in leg thrombosis management is to promote venous drainage. Elevating the legs on a bed cradle helps improve blood flow back to the heart, reducing swelling and preventing blood clots. Keeping the legs straight (A) is not the main purpose. Preventing embolism (B) is important but not the direct purpose of a bed cradle. Controlling body temperature (C) is unrelated to the use of a bed cradle for leg thrombosis.

Correct Answer: C

Rationale: The Mauriceau-Smellie-Veit maneuver is the correct answer for delivering the head in a breech presentation. This maneuver involves applying pressure to the fetal head with the fingers in the mouth to flex the head, guiding it through the pelvis. This technique helps prevent hyperextension of the head and facilitates a safe delivery. The Lovset maneuver involves rotating the fetus to disengage the impacted shoulder, not for delivering the head. The Burns Marshall Method is used for delivering the aftercoming head in a breech presentation. The Reverse woodscrew maneuver is a technique to disimpact a shoulder dystocia, not for delivering the head in a breech presentation.

Correct Answer: A

Rationale: Rationale for Correct Answer (A): 1. Previous C-section and uterine scars weaken the uterine wall. 2. Fetal macrosomia (large baby) increases pressure on the uterus. 3. Trauma can cause direct injury to the uterus. 4. Prolonged labor can lead to uterine overdistension and fatigue, increasing rupture risk. Summary of Incorrect Choices: B: Malpresentation, premature rupture of membranes, obesity, malnutrition, anemia are not direct factors for uterine rupture. C: Uterine fibroids, excessive weight gain, smoking, poor prenatal care can contribute to complications but not primary causes of uterine rupture. D: Not all factors in choices B and C are predisposing factors for uterine rupture, making this choice incorrect.

Correct Answer: A

Rationale: The correct answer is A: Caput succedaneum. This swelling is a result of pressure during birth and typically resolves on its own. Subgaleal hemorrhage involves bleeding into the potential space between the periosteum and skull, presenting as a boggy mass. Intracranial injury refers to damage within the skull, often due to trauma. Neonatal cephalhematoma is a subperiosteal collection of blood, causing a localized swelling. Caput succedaneum is the most likely diagnosis based on the description provided.

Correct Answer: B

Rationale: The correct answer is B: Escherichia coli. Puerperal sepsis is often caused by endogenous bacteria from the mother's own flora. E. coli is a common endogenous bacteria found in the gastrointestinal tract and can cause infection during childbirth. Chlamydia trachomatis is a sexually transmitted infection, not typically associated with puerperal sepsis. Clostridium tetani causes tetanus, not puerperal sepsis. Pseudomonas aeruginosa is an environmental pathogen, not typically an endogenous cause of puerperal sepsis.