What is the most common cause of shoulder dystocia during delivery?

Correct Answer: A

Rationale: The correct answer is A: fetal macrosomia. Fetal macrosomia, defined as a birth weight above 4 kg, is the most common cause of shoulder dystocia during delivery. This occurs when the baby's shoulders get stuck behind the mother's pelvic bone, leading to complications. Macrosomia is more likely in pregnancies with gestational diabetes, maternal obesity, and advanced maternal age, but the primary risk factor for shoulder dystocia is fetal macrosomia due to the large size of the baby. Maternal obesity, diabetes, and advanced age are secondary risk factors that can contribute to the likelihood of shoulder dystocia but are not the primary cause.

Correct Answer: B

Rationale: The correct answer is B: administer a uterotonic medication. This is the priority nursing action because a boggy uterus indicates uterine atony, which can lead to postpartum hemorrhage. Uterotonic medications help the uterus contract and reduce bleeding. Performing fundal massage (A) can be done after administering the medication to aid in uterine contraction. Administering an analgesic (C) or pain medication (D) is not the priority as the main concern is preventing excessive bleeding.

Correct Answer: D

Rationale: The correct answer is D: prepare the person for a blood transfusion. Meconium-stained amniotic fluid indicates fetal distress, which can lead to hypoxia and potential blood loss in the laboring person. The priority action is to prepare for a potential blood transfusion to address any hemorrhage that may occur during delivery. This is crucial for ensuring the safety and well-being of both the laboring person and the baby. Incorrect options: A: Prepare for an emergency cesarean section - While meconium-stained amniotic fluid may indicate fetal distress, the priority is addressing potential maternal blood loss. B: Document the amount of meconium - Documenting is important but not the priority when the person's health is at risk. C: Notify the healthcare provider - While important, immediate action to address potential blood loss takes precedence over notifying the healthcare provider.

Correct Answer: A

Rationale: The correct answer is A: administer a preoperative medication. This is crucial prior to an emergency cesarean birth to ensure the person is adequately prepared for the procedure. Preoperative medications can help reduce anxiety, prevent complications such as aspiration during anesthesia induction, and promote smooth recovery post-surgery. Administering pain relief (B) and epidural block (C) may be important for comfort but are not the priority in this urgent situation. Administering IV fluids (D) is generally important in preparation for surgery, but administering preoperative medication takes precedence in this scenario to ensure the person's safety and well-being during the emergency cesarean birth.

Correct Answer: A

Rationale: The correct answer is A: place the person on their left side. This intervention helps to optimize placental perfusion and reduce pressure on the vena cava, improving fetal oxygenation. Late decelerations indicate uteroplacental insufficiency, and changing the person's position can help alleviate this. Applying oxygen via mask (B) is important but secondary to optimizing perfusion. Administering pain medication (C) is not the priority in this situation. Performing a vaginal examination (D) is unnecessary and could potentially worsen the situation.