What is shown continuously on television and movies is that they either die fairly quickly, or, if you apply pressure, then get the bullet out, the patient will recover.
That's not the case.
The single best way to treat a gunshot wound to the abdomen is to get the person to a hospital as soon as possible.
Even if you have IV fluids at your disposal, there is debate among trauma surgeons about giving fluids to a patient with abdominal trauma showing signs of blood loss. Some say raising a low blood pressure promotes bleeding from injury sites; others argue that hypotension compromises adequate perfusion.
In olden days, Military Anit-Shock Trousers were applied. They fell out of favor some decades ago.
Since its first use in frontline emergency care, the Military Anti-Shock Trousers (MAST) has become one of the most widely studied and debated medical devices in pre hospital care. It has enjoyed both widespread support as well as harsh criticisms. Few medical devices have engendered such divergent opinion.
If you're on the street, call 911. If you're an EMT, follow your guidelines. If you're a doctor, do the usual trauma assessment and treat as you go. If you're a trauma surgeon, you kind of know what to do.
Evaluation of Penetrating Abdominal Trauma
Penetrating Abdominal Trauma
Initial Evaluation of the Trauma Patient
Military anti-shock garment: Historical relic or a device with unrealized potential?