Stage 1 — Recognize cues. Review the 0700 handoff for the four-client assignment. Highlight the findings that require the RN's prompt assessment.

Quick answer
Highlight sudden shortness of breath, new right calf tenderness, and SpO2 89 percent on room air for Patient A, and oriented to person and place for Patient D.

Why this is correct
Patient A has a new cluster (sudden dyspnea, hypoxemia, unilateral calf findings) after major orthopedic surgery, which threatens oxygenation and cannot be delegated. Patient D's orientation is only abnormal when compared with her documented baseline of oriented times three; an acute decline in an older adult with infection suggests delirium and needs RN assessment even though her vital signs are normal. Both findings require assessment, which is an RN responsibility that cannot be delegated to the LPN/VN or UAP.

Easy analogy or mental picture
Picture four dashboards: two show steady readings that match yesterday, one shows a small expected blip, and one flashes a new red warning. The RN walks to the flashing one first, then to the one whose normal-looking gauge is actually lower than its own set point.

Memory hook
New, sudden, or below this client's baseline = RN eyes now.

NCLEX decision rule
In a multi-client assignment, findings that are new or represent a decline from the client's own baseline require RN assessment; expected, stable, or already-planned findings can be managed through assignment with reporting parameters.

Why the other choices are wrong
Temperature 37.6 C is essentially unchanged from 37.5 C last evening, a common low-grade postoperative day 1 finding that does not explain Patient A's sudden hypoxemia. Breath sounds are clear is tempting as reassurance, but clear lungs with new hypoxemia actually argue against pneumonia and toward PE; it is not itself the abnormal finding. Receives prescribed VTE prophylaxis does not exclude PE. Crackles in the right base are tempting next to Patient A's dyspnea, but they are fewer than on admission in a client who is afebrile with SpO2 96 percent, which fits resolving pneumonia. Right shoulder pain of 5 out of 10 sounds alarming (cardiac or bleeding), but it is the same referred gas-insufflation ache described yesterday, with stable vital signs and a scheduled licensed-nurse reassessment. Cloudy urine is unchanged since admission and reflects the infection already being treated; it is not the new finding in Patient D. Temperature 36.7 C is tempting to use to dismiss Patient D's confusion, but older adults with infection often have delirium without fever, and a bed alarm is active is an existing safety measure, not a new finding.