Quick answerInfluenza with hypoxia, neutropenic fever, MRSA wound with pain 7/10, C. difficile with a 0900 dose, then the postoperative client.
Why this is correctThe stem removes cross-transmission from the decision by stating that PPE and hand hygiene are used between all clients, so the sequence follows urgency. Breathing (SpO2 86%, RR 32, accessory muscles) comes first. Neutropenic fever is a time-critical emergency. Severe pain with a due PRN dose is an active need now; a scheduled medication due in 1 hour is next; teaching with a 1500 deadline is last.
Easy analogy or mental pictureThink of an emergency department triage line: the person struggling to breathe goes first, the one with a time-critical infection next, then the one in pain, then scheduled tasks, then routine teaching.
Memory hookAirway/breathing > time-critical emergency > active symptom > scheduled task > routine teaching.
NCLEX decision ruleFollow the ordering principle the stem gives; when PPE and hand hygiene are guaranteed, clean-to-dirty sequencing does not override clinical urgency.
Why the other choices are wrongThe classic trap is to see the neutropenic client first to protect the immunocompromised client, but the stem states that PPE and hand hygiene prevent cross-transmission, and the client with SpO2 86% cannot wait. Placing the postoperative client early follows clean-to-dirty habit, yet this client is stable and has until 1500. Leaving the C. difficile client last because of spores ignores that PPE is used for everyone and that the vancomycin dose at 0900 is more time-bound than afternoon teaching; the MRSA client comes before it because pain of 7/10 is an active need now.
References
1NCSBN: NCLEX Test PlansEstablishing priorities and applying transmission-based precautions are tested nursing competencies
2CDC: Guideline for Isolation PrecautionsPPE and hand hygiene between clients prevent cross-transmission regardless of the order of care