Which statement by the nurse when explaining the purpose of positive end-expiratory pressure (PEEP) to the patient's caregiver is accurate?
"PEEP prevents the lung air sacs from collapsing during exhalation."
"PEEP allows the breathing machine to deliver 100% 02 to the lungs."
"PEEP will push more air into the lungs during inhalation."
"PEEP will prevent lung damage while the patient is on the ventilator."
The Correct Answer is A
A. Positive end-expiratory pressure (PEEP) is applied during mechanical ventilation to prevent alveolar collapse at the end of expiration. It helps maintain the patency of the alveoli, improving oxygenation and preventing atelectasis.
B. While PEEP can improve oxygenation by recruiting collapsed alveoli and increasing functional residual capacity, it does not directly affect the concentration of oxygen delivered by the ventilator. Oxygen concentration is adjusted separately from PEEP settings.
C. PEEP is applied at the end of expiration to maintain positive pressure in the airways and alveoli, preventing them from collapsing. It does not directly affect the delivery of air during inhalation.
D. PEEP can help prevent lung damage by maintaining alveolar recruitment and reducing the risk of atelectasis and barotrauma. However, it is not the sole factor in preventing lung damage, and other ventilator settings and strategies also play a role in protecting the lungs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
B. In a closed chest drainage system, slow and steady bubbling in the suction control chamber is typically an expected finding, as it indicates that the suction is active and functioning properly
A. Checking the tubing connections for leaks or the suction control outlet on the wall might be necessary if there were signs of a problem with the system's function.
C. Checking the suction control outlet on the wall is a reasonable action to ensure that the suction source is functioning appropriately and delivering the prescribed suction pressure to the chest drainage system. If there are any issues with the suction control outlet, they should be addressed to maintain proper suction.
D. Clamping the chest tube is not indicated based solely on the presence of slow, steady bubbling in the suction control chamber. Clamping the chest tube could obstruct drainage and lead to complications such as tension pneumothorax or retained hemothorax.
Correct Answer is A
Explanation
A Adequate fluid administration is essential before giving vasopressors to patients with hypovolemic shock. The patient’s low central venous pressure indicates a need for more volume replacement. The other patient data are not contraindications to norepinephrine administration.
B Low dose dopamine is not a contraindication to epinephrine administration.
C A sinus tachycardia is not a contraindication to epinephrine administration
D Lack of urine output is not a contraindication to epinephrine administration
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.