What is the purpose of using a cap with a one-way valve in a tracheostomy?
To prevent infection in the tracheostomy site
To provide additional oxygen to the patient
To facilitate speech and improve communication
To assist with suctioning secretions from the tracheostomy tube
The Correct Answer is C
A. Infection prevention is managed through sterile technique and proper tracheostomy care, not by using a one-way valve cap.
B. A one-way valve cap does not deliver oxygen; in fact, it requires that the patient be able to breathe through their upper airway.
C. The purpose of a one-way valve cap (such as a Passy-Muir valve) is to facilitate speech by allowing air to enter through the tracheostomy but forcing exhaled air through the vocal cords and upper airway, enabling phonation and improved communication.
D. Suctioning is performed through the tracheostomy tube, but the one-way valve cap is not designed to assist in that process.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. A pulmonary artery catheter (Swan-Ganz catheter) allows continuous cardiac output monitoring and measurement of right ventricular pressures and volumes.
B. An electrocardiogram monitors electrical activity of the heart but does not measure cardiac output or ventricular volume.
C. A central venous catheter measures central venous pressure but does not provide cardiac output or right ventricular volume data.
D. An arterial line monitors arterial blood pressure continuously but does not provide cardiac output or right ventricular volume information.
Correct Answer is D
Explanation
A. Low blood pressure and bradycardia are not typical early signs of ventilator-associated pneumonia (VAP).
B. Nausea and vomiting are not primary manifestations of VAP.
C. Weight gain and hypertension are unrelated to VAP.
D. Fever, elevated white blood cell count, and new or worsening pulmonary infiltrates on chest X-ray are classic signs of ventilator-associated pneumonia.
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