The nurse is caring for a patient on mechanical ventilation. Which of the following must the nurse implement to prevent ventilator-associated pneumonia (VAP)? Drag and Drop Directions: Click and drag the correct answer choices from the Possible Answers box on the left to the Correct Answers box on the right. More than one answer may be chosen.

Provide oral care every 12 hours

Monitor ETT cuff pressure

Insert a nasogastric tube

Administer high doses of sedation

Maintain head of the bed to at least 30 degrees

Answer and Explanation

Correct Answer : B,E

A. Provide oral care every 12 hours: Oral care is an essential component of VAP prevention; however, every 12 hours is insufficient for mechanically ventilated patients. Evidence-based bundles recommend more frequent oral care, often every 2–4 hours, typically with chlorhexidine to reduce oropharyngeal colonization. This frequency does not meet best-practice standards.

B. Monitor ETT cuff pressure: Maintaining appropriate endotracheal tube cuff pressure (usually 20–30 cm H₂O) helps prevent microaspiration of contaminated oral and gastric secretions into the lower airway. Inadequate cuff pressure increases the risk of pathogen entry into the lungs, making regular monitoring a critical VAP prevention strategy.

C. Insert a nasogastric tube: Insertion of a nasogastric tube does not prevent VAP and may increase the risk of aspiration if not managed properly. Gastric distention and reflux can contribute to aspiration of gastric contents, thereby increasing pneumonia risk rather than reducing it.

D. Administer high doses of sedation: High sedation levels suppress cough reflexes, impair early mobilization, and prolong mechanical ventilation duration, all of which increase VAP risk. Current evidence supports daily sedation interruption and light sedation strategies rather than deep sedation.

E. Maintain head of the bed to at least 30 degrees: Elevating the head of the bed between 30–45 degrees reduces the risk of aspiration of gastric and oral secretions. This positioning decreases the likelihood of bacteria entering the lower respiratory tract and is a cornerstone of ventilator bundle protocols.

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

A. Echocardiogram results with an ejection fraction of 55%: An ejection fraction (EF) of 55% is within the normal range, indicating preserved systolic function. While some forms of heart failure, such as HFpEF (heart failure with preserved ejection fraction), can occur, a normal EF alone does not strongly suggest acute heart failure as the cause of shortness of breath.

B. BNP results of 155 pg/mL (reference range <100 pg/mL): Brain natriuretic peptide (BNP) is released in response to ventricular stretch and increased intracardiac pressures. A BNP of 155 pg/mL is elevated, supporting a cardiac etiology of dyspnea, such as acute or chronic heart failure. BNP is a sensitive and specific biomarker for distinguishing heart failure from other causes of shortness of breath.

C. EKG results of sinus rhythm with occasional premature ventricular contractions (PVCs): Sinus rhythm with occasional PVCs does not indicate heart failure. While arrhythmias may coexist with heart failure, this finding alone does not explain the patient’s dyspnea or support a heart failure diagnosis.

D. ABG result with a PaCO2 of 30 mmHg (reference range 35-45 mmHg): A low PaCO2 reflects hyperventilation, which may be a compensatory response to hypoxia or pulmonary pathology. While it provides information on respiratory status, it is nonspecific and does not directly indicate heart failure as the underlying cause of dyspnea.

A. Tachycardia B. Dyspnea C. Muscle Tremors D. Diaphoretic E. Unable to speak in full sentences F. Nausea

Correct Answer is ["A","B","D","E"]

Explanation

A. Tachycardia: An elevated heart rate is a compensatory response to hypoxemia or increased work of breathing. In COPD exacerbations, tachycardia often accompanies early respiratory distress and signals the body’s attempt to maintain oxygen delivery to tissues.

B. Dyspnea: Shortness of breath or difficulty breathing is a primary and direct indicator of respiratory compromise. Progressive dyspnea reflects increased airway resistance, impaired gas exchange, and impending respiratory failure if not addressed promptly.

C. Muscle Tremors: Muscle tremors are not typically a direct sign of respiratory distress. They may occur from anxiety, medications such as beta-agonists, or metabolic disturbances, but they are not a reliable indicator of worsening pulmonary function.

D. Diaphoretic: Excessive sweating is a common autonomic response to hypoxia, increased work of breathing, or sympathetic activation. Diaphoresis in the context of COPD exacerbation signals significant physiologic stress and potential respiratory compromise.

E. Unable to speak in full sentences: Inability to complete sentences without pausing to breathe indicates severe respiratory effort and decreased ventilatory reserve. This is a critical sign of impending respiratory failure requiring immediate assessment and intervention.

F. Nausea: Nausea may occur due to medications, hypoxia, or anxiety but is not a primary manifestation of respiratory distress. It is a nonspecific symptom and less relevant in assessing acute respiratory compromise.

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Naxlex Comprehensive Predictor Exams

The nurse is analyzing the diagnostic test results of a patient who is in the emergency department for shortness of breath. Which diagnostic test result does the nurse anticipate to suggest the cause of the shortness of breath is from heart failure?

Correct Answer is B

Explanation

A nurse is caring for a patient who was admitted for COPD exacerbation. Which of the following manifestations most likely suggestive of the development of respiratory distress? Select all that apply.

Correct Answer is ["A","B","D","E"]

Explanation

The nurse is developing the plan of care to include prevention of foot drop for a patient on a mechanical ventilator who is sedated. What intervention should the nurse include in the plan of care?

A nurse is planning discharge for a client diagnosed with heart failure. Which of the following discharge instructions should the nurse provide to improve activity intolerance?

An ICU nurse is at the nurse's station when they suddenly hear their patient's ventilator alarming. Which actions should the nurse take when responding to ventilator alarms? Select all that apply.

The intensive care unit (ICU) nurse plans care for a patient with a hemodynamic monitoring system for central venous pressure (CVP). In the plan of care, which complications does the nurse monitor for? Select all that apply.

A client in the ICU who is receiving a propofol infusion is being prepared for a ventilator weaning trial. What is the nurse's first response to managing the propofol drip before the spontaneous awakening trial?

The ED nurse is assessing a 48-year-old female (sex at birth) client who has a history of diabetes. Which of the following signs and symptoms would cause the nurse to expect that the client may be experiencing a myocardial infarction? Select all that apply.