# Stage 6 — Evaluate outcomes. Review the clinical, antimicrobial, prevention, and surveillance timeline and answer the three outcome questions.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=373417&lang=en  
> language: en  
> subject: System-Specific Assessments  
> category: ROR

## Question

Stage 6 — Evaluate outcomes. Review the clinical, antimicrobial, prevention, and surveillance timeline and answer the three outcome questions.

| Time | Data |
| --- | --- |
| Postoperative day 5, 0700 — Recognition | New fever, tachycardia, leukocytosis, purulent drainage, expanding erythema, and increasing tenderness trigger focused assessment, surgical notification, and evaluation for sepsis and deeper complication. A fresh dressing contains the drainage, so Standard Precautions are used with a plan to add Contact Precautions if containment fails. |
| Postoperative day 5, 0930 — Source control | The surgeon opens and drains the superficial collection and obtains an aseptic wound specimen. Blood cultures are obtained because the systemic assessment raises bacteremia concern. CT shows no leak, deep fascial process, or organ-space collection. Site- and severity-directed empiric therapy begins without avoidable delay. |
| Postoperative day 6 — Microbiology and refinement | The wound specimen grows MRSA without a gram-negative or anaerobic pathogen; blood cultures remain negative. Broad colorectal-site empiric agents are narrowed to susceptibility-directed therapy. Route, monitoring, and duration are selected from source control, infection depth, kidney function, and clinical response. |
| Postoperative day 7 — Clinical response | Temperature is 36.9 C, heart rate 82/min, WBC 10.9 x 10^9/L, pain 2/10, erythema has receded inside the marked border, and drainage is scant and contained. Glucose is managed by the inpatient protocol without hypoglycemia. Ordered wound care and discharge teaching continue. |
| Quality and surveillance review — Separate pathway | Infection prevention applies current NHSN criteria and the facility reporting plan. The quality team verifies prophylaxis selection and timing, discontinuation after closure, skin preparation, normothermia, and perioperative glucose below 200 mg/dL, assigning owners and remeasurement dates without naming one process variance as the cause. |

Q1. Which finding set best demonstrates that the immediate clinical response is effective?

Blood cultures are negative, so the incision was never infected
Fever and leukocytosis resolve, marked erythema recedes, pain and drainage decrease, and no deeper collection is found after source control
The client remains hospitalized through day 30 on unchanged broad therapy

Q2. Which antimicrobial interpretation is most accurate?

Broad empiric therapy should continue because the operation involved the colon
A trough of 15 to 20 mg/L is mandatory for every superficial MRSA wound
Source control, susceptibility results, infection depth, kidney function, and clinical response support narrowing and a patient-specific route, duration, and monitoring plan

Q3. Which quality and surveillance response is appropriate?

Apply current NHSN criteria separately, verify prevention processes, assign improvement owners and remeasurement dates, and avoid unsupported causal attribution
Restart prophylactic antibiotics for all future clients until discharge
Report every postoperative fever as an SSI without evaluating tissue level or criteria

## Explanation

Outcome evaluation
The response is effective because source control occurs promptly, drainage becomes contained, fever and leukocytosis resolve, erythema recedes, pain decreases, and broad empiric therapy is narrowed from microbiology and clinical response. Negative blood cultures do not erase the wound infection. Prevention review and NHSN classification remain separate from treatment: the team verifies prophylaxis, skin preparation, temperature, and glucose processes, assigns owners, and applies current surveillance criteria without claiming one variance caused the SSI. If prolonged IV vancomycin is truly needed for serious MRSA infection, AUC-guided monitoring is preferred to a universal trough-only target.

## In-depth explanation

Measure the patient response
Improvement is multidimensional: systemic findings resolve, the marked erythema contracts, pain and drainage diminish, and no deeper or organ-space complication appears.

Measure stewardship
Appropriate empiric coverage is only the beginning. A strong result includes source control, culture interpretation, removal of unnecessary agents, patient-specific route and duration, and toxicity monitoring when needed.

Measure the system without false causality
NHSN surveillance uses defined criteria. Quality review verifies prevention processes and tests improvement over time; it does not label one missed checkbox as the cause of an individual infection.

NCLEX rule
Evaluate whether the source is controlled, the client is improving, therapy is narrower, and follow-up has owners.

## Clinical scenario

Scenario (Stage 6 — Evaluate outcomes)
Over the next two days, the surgical and antimicrobial plans are refined while infection prevention performs a separate surveillance and process review.

## Key concepts

- **Clinical de-escalation** — Reduction in antimicrobial spectrum, route intensity, monitoring burden, or duration when source control, microbiology, depth, and clinical response support it.
- **AUC-guided vancomycin monitoring** — Exposure-based monitoring recommended for serious MRSA infection when vancomycin is continued; it should not be extrapolated as a mandatory target for every mild or noninvasive infection.
- **Process review without causal attribution** — Verification of prevention steps, ownership, and remeasurement without claiming that one isolated variance necessarily caused one client's SSI.

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