**Core Concept**
The management of an atonic uterus involves three steps: the first step involves administering uterotonic agents to stimulate uterine contractions, the second step involves correcting any underlying causes, and the third step involves supportive care to prevent complications.
**Why the Correct Answer is Right**
The third step of management of atonic uterus involves providing supportive care to prevent complications such as hemorrhage, infection, and coagulopathy. This includes maintaining fluid and blood product resuscitation, administering broad-spectrum antibiotics, and closely monitoring vital signs and laboratory values. **Massive transfusion protocols** may be initiated in cases of severe hemorrhage.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because administering additional uterotonic agents would be part of the first step of management, not the third step.
**Option B:** This option is incorrect because correcting underlying causes would be part of the second step of management, not the third step.
**Option C:** This option is incorrect because administering vasopressors would be part of managing hypotension, not the third step of managing atonic uterus.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that atonic uterus is a leading cause of postpartum hemorrhage (PPH), and prompt recognition and management can significantly improve maternal outcomes. The **"4 Ts"** in PPH management are:
* Tone (uterine atony)
* Tachysystole (hypertonic uterus)
* Trauma (uterine rupture)
* Thrombin (coagulopathy)
**Correct Answer: C. Administering broad-spectrum antibiotics and maintaining fluid and blood product resuscitation.**
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