57 yo F evaluated on surgical floor for Continuous bilious emesis over last 12 hrs. Had 10 episodes of vomiting which continued despite IV Antibiotics. Underwent TAH, b/l salpingo-oophorectomy, omentectomy, tumor debulking for epithelial ovarian cancer 4 days ago. During procedure, 2 L ascites was drained. Ate solid food yday for lunch & unable to hold down even small sips of water. Last BM was prior to surgery& not passed flatus. PMH Type 2 DM (metformin). PSH C/S x3. VSS. BMI 37. Exam markedly distended abd w/vertical skin incision &ABSENT bowel sounds. Staples clean and dry. Labs K 2.9(L), HCO3 30, BUN 26, glucose 58(L). Abd X ray Dilated loops of bowel w/air in distal colon&rectum. Next step?
a) Intravenous fluid resuscitation
b) Abdominal exploration
c) Nasogastric tube insertion
d) Repeat abdominal X-ray in 6 hours