Aggressive IVF resuscitation, continued after revascularization due to capillary leak
Correct electrolyte imbalances prior to IV contrast or surgical exploration
Analgesia (usually Opioids
IV antibiotics - broad spectrum antibiotics to prevent sepsis 
Second-generation cephalosporin plus metronidazole, OR
Levofloxacin 500 mg IV q24 hours PLUS Metronidazole 15 mg/kg IV LOAD over 1 hour, for severely ill, maintenance 500 mg IV q6 hours, OR
Piperacillin/tazobactam 3.375 mg IV q6 hours
Anticoagulation with heparin is usually appropriate in all patients with<unk> , with exception of those with typical contraindications
Some experts will recommend delaying heparin for 48 hours due to risk for intraluminal bleeding in bowels
Correct electrolyte imbalances prior to IV contrast or surgical exploration
Second-generation cephalosporin plus metronidazole, OR
Levofloxacin 500 mg IV q24 hours PLUS Metronidazole 15 mg/kg IV LOAD over 1 hour, for severely ill, maintenance 500 mg IV q6 hours, OR
Piperacillin/tazobactam 3.375 mg IV q6 hours
Some experts will recommend delaying heparin for 48 hours due to risk for intraluminal bleeding in bowels
Papaverine infusion (30-60m g/h IV) OR
Surgical embolectomy OR<unk>  artery bypass surgery OR
Retrograde open<unk>  stenting OR
tPA intra-arterial thrombolysis with IR
PLUS/MINUS surgical resection of necrotic bowel after any of above interventions
PLUS/MINUS 24-48 hour second-look surgery
Transcatheter vasodilation via:
PGE1, alprostadil
PGI2, epoprostenol
Papaverine, most commonly used, though use in caution with angina, recent stroke, MI, glaucoma
PGE1, alprostadil
PGI2, epoprostenol
Papaverine, most commonly used, though use in caution with angina, recent stroke, MI, glaucoma
Heparin/warfarin either alone or in combination with surgery
Up to 5% of patients require intervention beyond anticoagulation alone
Immediate heparinization should be started even when surgical intervention is indicated
Decreases progression of thrombosis and improves survival
PLUS/MINUS tPA intra-arterial thrombolysis with IR
PLUS/MINUS laparotomy for evidence of bowel necrosis, peritonitis, stricture, severe GI bleeding
Decreases progression of thrombosis and improves survival
Angioplasty with or without stent placement or surgical revascularization
Mesenteric ischemia
Infectious colitis
Intestinal ischemia
Ischemic colitis
Large bowel obstruction
Ulcerative colitis
Malignant bowel obstruction
CMV colitis