Table 1.

Patient Presentations and Outcomes

Patient Characteristics	Vital Signs	Physical Exam	Labarotory Values	CT Findings	Length of Stay after Surgery Consult	Discharge Disposition
Patient 1: 38 year old man with cirrhosis and unclear etiology of free air	T: 97.0 P: 94 BP: 92/53 RR:22	No AMS Abdomen tender and distended without peritonitis	WBC: 29.5 Lactate: 5.1 mg/dl	Large amount of diffuse free air and ascites	3	Death
Patient 2: 52 year old woman with metastatic cancer of unknown primary with erosive gastric mass	T: 97.4 P: 115 BP: 135/82 RR: 23	No AMS Abdomen tender and distended without peritonitis	WBC: 15.4 Lactate: 4.8 mg/dl	Moderate diffuse free air throughout abdomen with mass eroding into stomach	5	Death
Patient 3: 76 year old woman with metastatic squamous cell carcinoma with perforation of colonic stent	T: 97.3 P: 128 BP: 103/55 RR: 21	AMS Abdomen tender with peritonitis but non-distended	WBC: 11.8 Lactate: 2.1 mg/dl	Moderate amount of diffuse free air throughout abdomen	1	Death
Patient 4: 48 year old man with metastatic melanoma and perforated diverticulitis	T: 97.8 P: 110 BP: 113/81 RR: 20	AMS Abdomen tender, distended with peritonitis	WBC: 18.2 Lactate: 5.3 mg/dl	Large amount of diffuse free air throughout abdomen with diverticulitis	1	Death
Patient 5: 46 year old man with metastatic colon cancer and perforation from paracentesis	T: 98.2 P: 122 BP: 112/67 RR: 26	No AMS Abdomen tender and distended without peritonitis	WBC: 24.2 Lactate: not obtained	Moderate, diffuse free air throughout abdomen with ascites	6	Home Hospice
Patient 6: 26 year old man with AIDS and small bowel lymphoma with anastomotic breakdown 2 weeks after small bowel resection	T: 98.2 P: 72 BP: 122/76 RR: 14	No AMS Abdomen tender but non-distended without peritonitis	WBC: 13.4 Lactate: 1.4 mg/dl	Small amount of diffuse free air throughout abdomen along with small amount of air around anastomosis	25	Home Hospice
Patient 7: 66 year old man with cirrhosis and unresectable hepatoma and perforated diverticulitis	T: 97.1 P: 89 BP: 99/62 RR: 18	No AMS Abdomen tender and distended without peritonitis	WBC: 12.4 Lactate: 1.8 mg/dl	Moderate diffuse free air throughout abdomen with ascites	3	Inpatient Hospice
Patient 8: 52 year old man with recurrent duodenal cancer s/p Whipple procedure with perforation of obstructed afferent limb	T: 99.7 P: 89 BP: 137/77 RR: 19	AMS Abdomen distended but non-tender without peritonitis	WBC: 18.2 Lactate: 0.7 mg/dl	Moderate diffuse free air throughout the abdomen	26	Inpatient Hospice

T=temperature, P=pulse, BP=blood pressure (in mmHg), RR=respiratory rate, AMS=altered mental status, WBC=white blood cell count (in thousands),