I work in a radiology clinic — I just read the reports, I’m no doctor — and it just so happens I have a report handy to consult on an abdominal GSW.
I don’t know what your story is going to require, but here’s some medical-sounding stuff you can peruse, and use as necessary. I’m trusting that picnurse will add or correct as needed.
As picnurse said, the patient will probably be intubated. In particular, that’s called an endotracheal or ET tube. The staff may also say that patient is on a ventilator, or vented; if the patient has to be transported in a hurry somewhere, he might be bagged (that is, those hand-held squeezey bags operated by a respiratory therapist). This tube might be taken out right after surgery if the patient is breathing on his own.
This patient also had a feeding tube, also called an NG or nasogastric (from the nose to the stomach) tube. It probably means the patient came in unconscious. That tube probably wouldn’t come out right after abdominal surgery, as the bowels don’t like to be handled by surgeons; it takes them a few days to start working properly again.
The patient will almost certainly also have a vascular line, particularly for infusing units of blood, but also for adding meds. This particular patient with a right upper quadrant (RUQ) GSW has a vascular access in his right subclavian vein, but they might instead put in a CVC (central venous catheter) in his right or left internal jugular vein, or a PICC line (peripherally inserted CvC or just “peripheral line”) in one of his arms.
This patient also has RUQ abdominal drains, presumably as a result of bleeding.
Even if they know the patient had a GSW and where, they’ll likely take an X-ray to see where the bullet is, and if it fragmented. To get the right flavor of doctory talk, let me imagine for you what the X-ray will read like:
Imaginary left lower quadrant X-ray of an imaginary patient with GSW to the spleen SUPINE ABDOMEN XR, AP VIEW, AT 1115 HOURS There are radiopaque metal fragments in the LLQ consistent with known bullet wound. Possible fracture in left ninth rib. Detail is obscured by underlying backboard. The spleen is inadequately visualized.
AP view stands for anteroposterior, or “from the front to the back.”