The nurse is caring for a patient who is mechanically ventilated understands which of the following statements is true?

Rationale: A. Controlled ventilation is the preferred mode for most patients is incorrect because controlled ventilation (CMV) is typically reserved for patients who are heavily sedated, paralyzed, or unable to initiate breaths. Most patients tolerate assisted or synchronized modes (like SIMV or PSV) better, which allow some spontaneous breathing and reduce complications associated with full control ventilation. B. Communication with intubated patients is often difficult is correct because mechanical ventilation via an endotracheal tube or tracheostomy prevents verbal speech. Patients may experience anxiety, frustration, and difficulty expressing needs. Nurses often use nonverbal communication tools, such as writing boards, communication apps, or hand signals, to facilitate interaction. C. Wrist restraints are applied to all patients to avoid self-extubation is incorrect because restraints are not routinely applied. They are used only when necessary to protect the patient from removing tubes or lines. Overuse of restraints can cause physical and psychological harm and should be avoided whenever possible. D. Patients with chronic obstructive pulmonary disease wean easily from ventilation is incorrect because patients with COPD often have difficulty weaning due to limited pulmonary reserve, hypercapnia, and respiratory muscle fatigue. Weaning requires careful assessment, gradual reduction of ventilator support, and sometimes adjunct therapies like bronchodilators or noninvasive ventilation.