Small bowel obstruction is commonly related to adhesions, hernia, tumor, inflammatory stricture, volvulus, gallstone ileus, or intussusception. Large bowel obstruction is often related to malignancy, volvulus, stricture, fecal impaction, hernia, or pseudo-obstruction. Proximal bowel fills with gas, fluid, and secretions. Vomiting, third spacing, dehydration, electrolyte imbalance, and renal injury can follow. Strangulation means blood flow is compromised and requires urgent escalation. For NCLEX-RN (Canada), items rarely announce the topic in the first sentence. Anchor to objective data, trajectory, and the safest next step for the role named in the stem before distractors compete. On the exam, writers often pair stable-sounding options with unstable data—notice the mismatch before you commit. If the stem names a license or role, reread that line; scope errors are classic trap answers even when the clinical topic is familiar. Run a 60-second scan: breathing work and oxygenation, perfusion and end organs, neuro baseline, likely infection sources, and devices that can fail quietly. When two answers feel partly right, pick the one that reduces imminent harm and matches orders for the role you were given. Train yourself...