Stage 1 — Recognize cues. The nurse assesses a client on the orthopedic unit during the evening shift. Review the assessment note. Highlight the findings that require immediate follow-up.

Quick answer
Highlight the insects on the wall, disorientation with drifting attention, BP 168/96 with HR 124, and coarse tremor with diaphoresis.

Why this is correct
POD 3 after a last drink on the morning of admission is about 72 hours after cessation, squarely in the 48- to 96-hour window for withdrawal delirium. Visual hallucinations plus inattention and disorientation define an acute delirium, and tremor, sweating, hypertension, and tachycardia well above his preoperative 132/80 and 78 show autonomic hyperactivity. Together they need rapid-response evaluation and safety measures; the last-drink timing is unselectable history that explains why this pattern is emerging now.

Easy analogy or mental picture
Picture a car whose accelerator was held down by alcohol for 30 years. Remove the alcohol and the engine over-revs: racing pulse, high BP, shaking, sweating, and a mind that cannot hold focus.

Memory hook
Day 3 after the last drink plus shakes, sweats, and bugs on the wall equals withdrawal delirium until proven otherwise.

NCLEX decision rule
For new confusion after surgery, look for the cause that fits both the timing and the vital-sign pattern. Hyperadrenergic delirium with hallucinations does not come from controlled pain, a small remote opioid dose, or expected surgical findings.

Why the other choices are wrong
Knee pain 3/10 is controlled, so pain-driven agitation does not fit. Oxycodone 5 mg given 6 hours ago would more likely cause sedation and slow breathing, not tachycardia, tremor, and hallucinations, though medication effects remain on the differential. Swelling and bruising around a knee incision on POD 3 are expected. A hemoglobin of 11.2 after 13.0 preoperatively is an expected arthroplasty blood loss without instability. SpO2 95 percent is acceptable, and the absence of prior withdrawal seizures is reassuring history, not a current danger sign.