NPO & Post-Op Diet Progression (GI (PN)) tests whether you stay within PN scope: carry out ordered care, observe and report changes, and escalate when the plan or stability is unclear. US NCLEX-PN items emphasize stable clients, task sequencing, and reporting when findings exceed PN scope. Connect NPO and Post-Op Diet Progression to bedside cues you will reassess first: vitals trends, work of breathing, perfusion, mentation, and pain or ischemic equivalents when relevant. NCLEX items often reward recognizing when subtle instability outweighs reassurance, then selecting nursing actions that protect airway, circulation, and neurologic status before routine tasks.