A nurse is caring for a client who is at 30 weeks of gestation.
The nurse should plan to immunize the client with which of the following vaccines? (Select all that apply)

Choice A rationale

Fundal massage is the primary intervention for uterine atony and postpartum hemorrhage to stimulate uterine contraction and tamponade bleeding. However, an amniotic fluid embolism (AFE) is characterized by sudden cardiopulmonary collapse, hypoxia, and coagulopathy, where fundal massage is irrelevant to the underlying pathology.

Choice B rationale

AFE involves the sudden entry of amniotic fluid into the maternal circulation, triggering a massive anaphylactoid reaction, acute respiratory distress, and severe refractory hypotension, leading to cardiac and respiratory arrest. Initiating cardiopulmonary resuscitation (CPR) is often immediately required to support life functions.

Choice C rationale

Assisting the client to empty their bladder may be beneficial during labor to allow the fetal head to descend, but it is not a priority intervention for the life-threatening, acute physiological crisis of an AFE. The immediate focus must be on optimizing oxygenation, circulation, and treating the underlying shock and coagulopathy.

Choice D rationale

AFE causes severe pulmonary vasoconstriction and acute respiratory distress, leading to profound hypoxemia. Applying oxygen at 2 L/min via nasal cannula is insufficient for this level of respiratory compromise; the client requires high-flow oxygen, often nonrebreather mask or mechanical ventilation, to maintain adequate arterial oxygen saturation.

Choice A rationale

Sequential compression devices (SCDs) are applied preoperatively to promote venous return and prevent venous stasis in the lower extremities, significantly reducing the risk of deep vein thrombosis (DVT) and subsequent pulmonary embolism (PE), which are critical concerns during and after major surgery like a cesarean birth. Prophylaxis should commence before the operation for maximal effect.

Choice B rationale

An indwelling urinary catheter is typically inserted prior to the cesarean section, after the client receives regional anesthesia, to ensure the bladder is empty during the procedure, preventing injury to the bladder by the surgeon and maintaining a clear surgical field. It is not delayed until immediately following the procedure.

Choice C rationale

Oxytocin is a uterotonic agent administered post-delivery of the placenta (not prior to the procedure) via continuous IV infusion to stimulate uterine contractions, which is crucial for preventing postpartum hemorrhage by promoting myometrial contraction and vessel constriction.

Choice D rationale

The surgical timeout, a critical patient safety measure that verifies the correct patient, procedure, and surgical site, is performed by the entire surgical team immediately prior to the incision, typically after the client enters the operating room and is prepped, not while they are in the preoperative holding area.