The nurse is caring for a patient with emphysema and respiratory failure who is receiving mechanical ventilation through an endotracheal tube. To prevent ventilator-associated pneumonia (VAP), which action is most important to include in the plan of care?
Keep the head of the bed elevated at least 30 degrees.
Administer ordered antibiotics as scheduled.
Hyperoxygenate the patient before suctioning.
Suction the airway every 2 hours.
The Correct Answer is A
Choice A reason: Keeping the head of the bed elevated at least 30 degrees is crucial in preventing ventilator-associated pneumonia (VAP). Elevating the head of the bed reduces the risk of aspiration of gastric contents and oral secretions into the lungs, which can lead to infection. This positioning helps improve lung expansion and facilitates drainage, thereby decreasing the likelihood of VAP.
Choice B reason: Administering ordered antibiotics as scheduled is important for treating existing infections but is not a primary preventive measure for ventilator-associated pneumonia. While antibiotics play a role in managing infections, the focus here is on preventive strategies. Overreliance on antibiotics can also lead to antibiotic resistance, making infection control more challenging.
Choice C reason: Hyperoxygenating the patient before suctioning is a standard practice to prevent hypoxia during the procedure, but it is not directly related to preventing ventilator-associated pneumonia. While hyperoxygenation helps maintain adequate oxygen levels, it does not address the specific risk factors associated with the development of VAP.
Choice D reason: Suctioning the airway every 2 hours may be necessary for some patients to maintain airway patency and remove secretions. However, routine suctioning at fixed intervals is not always appropriate and can increase the risk of trauma to the airway and infection. Suctioning should be performed based on clinical assessment and the patient's needs rather than a fixed schedule to prevent complications and potential infections.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Decreased cardiac arrhythmias are not the primary desired effect of dobutamine in heart failure patients. While dobutamine can have some effects on heart rhythm, its main action is to increase the strength of the heart's contractions.
Choice B reason: Increased myocardial contractility is the correct and desired effect of dobutamine. Dobutamine is a positive inotropic agent, meaning it increases the force of the heart's contractions. This is particularly beneficial in heart failure patients as it helps improve cardiac output and the effectiveness of the heart as a pump, thus alleviating symptoms of heart failure and improving organ perfusion.
Choice C reason: Decreased electrical conductivity in the heart is not an effect of dobutamine. In fact, dobutamine can increase the risk of arrhythmias due to its stimulating effects on the heart. The drug works by enhancing the contractility of the heart muscle rather than altering the electrical conduction system.
Choice D reason: Dilated coronary arteries are not a primary effect of dobutamine. While the drug may have some vasodilatory properties, especially at higher doses, its primary role is to enhance myocardial contractility rather than directly dilate the coronary arteries.
Correct Answer is A
Explanation
Choice A reason: Decerebrate posturing is characterized by the extension of the arms and legs, pronation of the arms, and plantar flexion. This type of posturing indicates severe brain damage, typically involving the brainstem. It is a sign of a more serious injury than decorticate posturing and suggests that the damage has progressed to affect the brainstem.
Choice B reason: Flexion withdrawal is a response to a painful stimulus where the patient pulls away from the pain. It is a reflex that indicates some level of preserved spinal cord or brainstem function. However, it does not involve the specific pattern of extension and pronation seen in decerebrate posturing.
Choice C reason: Decorticate posturing involves flexion of the arms, clenched fists, and extension of the legs. The arms are bent inward toward the body with the wrists and fingers flexed on the chest. This posturing indicates damage to the brain's cortical areas or the corticospinal tract. It is less severe than decerebrate posturing.
Choice D reason: Localization of pain is a response where the patient moves a hand towards the site of the painful stimulus, indicating a higher level of brain function. This response suggests that the brain can still process and respond to the location of the pain, which is not consistent with the described posturing.
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