Assertion (A): Chlorhexidine mouth care is recommended for the patients on mechanical ventilator.Reasons (R): Mouth care with chlorhexidine prevents ventilator associated pneumonia.

Appeared in: BHU NO - 12 April 2024

Explanation

Both the assertion and the reason are factually correct.
The primary rationale for performing chlorhexidine mouth care on mechanically ventilated patients is to prevent Ventilator-Associated Pneumonia (VAP).
VAP develops when pathogens from the oropharynx are aspirated into the lower respiratory tract around the cuff of the endotracheal tube.
Chlorhexidine is a broad-spectrum antiseptic that effectively reduces the bacterial load in the oral cavity, thereby decreasing the risk of aspiration and subsequent lung infection.
Therefore, the reason (preventing VAP) correctly and directly explains the assertion (recommending chlorhexidine mouth care).

Option A: This option is incorrect because both statements are factually correct. Chlorhexidine mouth care is a standard, evidence-based practice for ventilated patients, and its primary purpose is to prevent VAP.
Option B: This option is incorrect because the reason is also correct. The prevention of VAP is the specific, scientifically supported goal of this nursing intervention.
Option D: This option is incorrect because the reason is the direct and primary explanation for the assertion. The core purpose of the intervention (chlorhexidine care) is to achieve the outcome described (VAP prevention). The two statements are directly linked.

Clinical Relevance

Nursing practice connection: Knowing Ventilator-Associated Pneumonia (VAP) prevention and the role of oral hygiene helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Implementing a consistent oral care protocol with chlorhexidine is a critical, evidence-based nursing responsibility in the ICU to improve patient outcomes and reduce mortality.
VAP is a leading hospital-acquired infection in ICUs, significantly increasing the length of stay, healthcare costs, and risk of death.
Nurses are at the forefront of VAP prevention and must be diligent in performing oral care, typically every 2 to 4 hours, as a key component of the 'ventilator care bundle'.

How to Approach the Question

First, analyze the Assertion (A) for its factual accuracy. Is chlorhexidine mouth care a standard, recommended practice for patients on mechanical ventilators? Yes, it is.
Second, analyze the Reason (R) for its factual accuracy. Does mouth care with chlorhexidine help prevent ventilator-associated pneumonia? Yes, this is a well-established, evidence-based benefit.
Third, evaluate the relationship between the two statements. Does the reason (preventing VAP) provide the direct rationale for the assertion (performing the mouth care)? Yes, the primary goal of the action in (A) is to achieve the outcome in (R).
Based on this logical connection, conclude that both statements are correct and (R) is the correct explanation for (A).

Concept Tested & Keywords

Concept Tested: Ventilator-Associated Pneumonia (VAP) prevention and the role of oral hygiene.
Stem keywords: Chlorhexidine, mouth care, mechanical ventilator, ventilator associated pneumonia, VAP
Lead-in keywords: Assertion (A), Reasons (R), correct explanation
Negative lead-in flag: false

QbFznFQNoJKRyiC-C0Srt5

E6 Nursing Fundamentals Potter Perry 12e Part 4 pp. 223-225, 227-229

Practise the full BHU NO - 12 April 2024

Attempt every question from this paper in a timed mock, then review the full solution for each one.