Which ventilator mode delivers a preset tidal volume at a preset respiratory rate while allowing the patient to trigger additional breaths?
Synchronized Intermittent Mandatory Ventilation (SIMV)
Pressure Support Ventilation (PSV)
Assist-Control (AC) Ventilation
Continuous Positive Airway Pressure (CPAP)
The Correct Answer is C
A. Synchronized Intermittent Mandatory Ventilation (SIMV): SIMV delivers a preset number of mandatory breaths with a fixed tidal volume but allows the patient to breathe spontaneously between ventilator-delivered breaths. However, those spontaneous breaths are not assisted by the ventilator.
B. Pressure Support Ventilation (PSV): PSV is used for spontaneous breathing where each patient-initiated breath is supported by a preset inspiratory pressure. It does not deliver mandatory breaths or a fixed tidal volume.
C. Assist-Control (AC) Ventilation: AC mode delivers a preset tidal volume at a preset rate but also assists with every patient-initiated breath by delivering the same preset tidal volume. This ensures consistent ventilation while allowing the patient to initiate breaths, reducing the work of breathing in acute respiratory failure.
D. Continuous Positive Airway Pressure (CPAP): CPAP provides constant pressure throughout the respiratory cycle to keep airways open but does not deliver preset breaths or tidal volumes. It is primarily used for patients who can breathe spontaneously but need support to maintain oxygenation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Antihypertensive and anticoagulant medication: These medications are not indicated for rapid sequence intubation. Their primary purposes—blood pressure control and prevention of clotting—do not facilitate airway management.
B. A short acting bronchodilator: Bronchodilators help open the airways in obstructive pulmonary conditions but do not provide sedation, pain relief, or muscle relaxation necessary for intubation.
C. A sedative, analgesic and a paralytic drug: Rapid sequence intubation requires a combination of medications to induce unconsciousness (sedative), relieve pain (analgesic), and produce muscle relaxation (paralytic) to allow safe and efficient endotracheal tube placement while minimizing patient movement and airway trauma.
D. An antibiotic: Antibiotics are not part of the RSI protocol. They are used to treat or prevent infections but do not facilitate intubation or airway management.
Correct Answer is C
Explanation
A. Extracorporeal membrane oxygenation: ECMO is an invasive form of life support involving cannulation of large blood vessels to oxygenate blood externally. It is reserved for severe respiratory or cardiac failure and is not considered non-invasive ventilation.
B. Mechanical ventilator: Mechanical ventilation involves endotracheal intubation, making it an invasive method of providing respiratory support. It bypasses the upper airway and directly delivers air into the lungs.
C. Tracheostomy: A tracheostomy involves creating a surgical opening in the trachea to insert a tube for airway access, making it an invasive procedure used for long-term ventilation or airway management.
D. Bi-PAP: Bi-level Positive Airway Pressure (Bi-PAP) delivers pressurized air through a mask without the need for an artificial airway. It is non-invasive and supports patients with conditions like COPD exacerbations or sleep apnea by improving ventilation and reducing the work of breathing.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
