**Core Concept**
The patient is likely suffering from a ruptured abdominal aortic aneurysm (AAA), a life-threatening condition that requires immediate surgical intervention. AAA occurs when the aorta, the main blood vessel that carries blood from the heart to the rest of the body, dilates and ruptures, leading to severe abdominal pain, hypotension, and tachycardia.

**Why the Correct Answer is Right**
The correct answer is to perform an emergency surgical repair, also known as aneurysmectomy. This involves replacing the affected section of the aorta with a synthetic graft, thereby restoring blood flow to the lower extremities and preventing further bleeding. The patient's high pulse rate (tachycardia) and low systolic blood pressure (hypotension) are indicative of hemorrhagic shock, which is a medical emergency that requires prompt surgical intervention.

**Why Each Wrong Option is Incorrect**
**Option A:** Administration of intravenous fluids and vasopressors may help stabilize the patient temporarily, but it does not address the underlying cause of the hemorrhage and is not a substitute for surgical repair.

**Option B:** Activating the trauma team and performing a FAST (Focused Assessment with Sonography for Trauma) exam may help identify the extent of the bleeding, but it does not provide a definitive diagnosis or guide management.

**Option C:** Administering pain relief medication, such as morphine, may help alleviate the patient's distress, but it does not address the life-threatening nature of the condition and may even mask signs of ongoing bleeding.

**Clinical Pearl / High-Yield Fact**
In patients with suspected ruptured AAA, the "5 Ps" mnemonic can be used to remember the key features of the condition: Pain (abdominal pain), Pulse (tachycardia), Pressure (hypotension), Pallor (pale skin), and Paresthesia (numbness or weakness in the lower extremities).

**Correct Answer:** C. Emergency surgical repair