# An adult is receiving invasive mechanical ventilation. Complete the current evidence-based VAP-prevention plan.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=393383&lang=en  
> language: en  
> subject: Standard/Transmission-Based Precautions/Surgical Asepsis  
> category: SIPC

## Question

An adult is receiving invasive mechanical ventilation. Complete the current evidence-based VAP-prevention plan.

Unless contraindicated, elevate the head of the bed to ::선택::0–1530–4560–90Trendelenburg degrees, use daily ::선택::sedation minimization with a spontaneous awakening trial or protocol and readiness-to-wean assessmentdeep sedation to a RASS of −5 for every clientcontinuous neuromuscular blockadescheduled antibiotic rotation, and provide ::선택::routine chlorhexidine 0.12%lemon-glycerin swabsoral care including daily toothbrushing without routine chlorhexidinehydrogen peroxide 3%.

## Explanation

For adults receiving mechanical ventilation, essential prevention practices include elevating the head of the bed to 30–45 degrees unless contraindicated, minimizing sedation with a protocol or spontaneous awakening trials, assessing readiness to breathe and extubate, and providing regular oral care that includes toothbrushing. Routine oral care with chlorhexidine is not recommended because it has no clear benefit for important outcomes and may cause harm. DVT and stress-ulcer prophylaxis remain individualized therapies, not universal VAP-prevention answers for every ventilated client.

## In-depth explanation

Correct Answer
Use 30–45 degree head elevation, daily sedation minimization with readiness-to-wean assessment, and oral care including toothbrushing without routine chlorhexidine.

Why It Fits
Semirecumbent positioning lowers aspiration exposure, while lighter sedation and daily liberation assessment shorten unnecessary ventilator time. Mechanical plaque removal supports oral hygiene without adding chlorhexidine-related uncertainty.

Clinical Picture
VAP prevention works by reducing aspiration, reducing time on the ventilator, and reducing oral bacterial burden. Each action addresses one of those pathways.

Memory Link
Head up, wake and assess, brush the mouth, liberate early.

NCLEX Rule
Choose current essential practices and apply contraindication checks. Do not treat a historical bundle component as a universal order when current guidance recommends individualized risk assessment.

Why the Alternatives Fail
Flat positioning increases aspiration risk. Deep sedation and neuromuscular blockade delay liberation when not otherwise indicated. Routine chlorhexidine oral care is not recommended, and antibiotic rotation does not prevent VAP safely.

Source
1SHEA/IDSA/APIC: Strategies to Prevent VAP/VAE, 2022 Update

## Clinical scenario

The adult has no contraindication to semirecumbent positioning. The ICU uses the 2022 SHEA/IDSA/APIC practice recommendations for prevention of ventilator-associated pneumonia and ventilator-associated events.

## Key concepts

- **IHI VAP bundle** — Institute for Healthcare Improvement evidence-based bundle to prevent ventilator-associated pneumonia.
- **SAT/SBT (Wake up and breathe)** — Daily spontaneous awakening and spontaneous breathing trials reduce ventilator days and mortality.
- **Chlorhexidine 0.12% oral care** — Antiseptic mouth rinse used twice daily in ventilated patients to reduce oral bacterial load and VAP risk.

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