A client is on Synchronized Intermittent Mandatory Ventilation (SIMV). Which of the following statements accurately describes this mode of ventilation?

SIMV only provides non-invasive support and cannot be used with invasive ventilation.

All breaths are delivered at a preset rate and tidal volume by the ventilator without any client participation.

The ventilator assists with every breath taken by the client, ensuring full control of ventilation.

The ventilator delivers a preset number of mandatory breaths while allowing the client to initiate additional breaths at will.

Answer and Explanation

The Correct Answer is D

Synchronized Intermittent Mandatory Ventilation (SIMV) is a mechanical ventilation mode used to support patients who retain some spontaneous respiratory effort while still requiring ventilatory assistance. It provides a combination of mandatory ventilator-delivered breaths and spontaneous breaths initiated by the client. This mode helps maintain adequate ventilation while gradually allowing the patient to regain independent breathing ability. It is commonly used during weaning from mechanical ventilation.

Rationale:
A. SIMV only provides non-invasive support and cannot be used with invasive ventilation is incorrect because SIMV can be used with both invasive (endotracheal tube or tracheostomy) and non-invasive ventilation systems depending on the clinical setting. It is a standard mode in intensive care units for intubated patients.

B. All breaths are delivered at a preset rate and tidal volume by the ventilator without any client participation describes controlled mechanical ventilation (CMV), not SIMV. In SIMV, the client is allowed to breathe spontaneously between mandatory breaths, making it partially supportive rather than fully controlled.

C. The ventilator assists with every breath taken by the client, ensuring full control of ventilation describes assist-control ventilation rather than SIMV. In SIMV, spontaneous breaths are not fully controlled or assisted unless pressure support is added. The client retains some independent respiratory effort.

D. The ventilator delivers a preset number of mandatory breaths while allowing the client to initiate additional breaths at will is correct because SIMV synchronizes mandatory breaths with the client’s spontaneous efforts. This allows partial ventilatory support while encouraging respiratory muscle activity and facilitating weaning from mechanical ventilation.

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Correct Answer is B

Explanation

Postoperative care following coronary artery bypass graft (CABG) surgery focuses on early detection of complications such as bleeding, hemodynamic instability, respiratory compromise, and infection. Clients are at high risk for cardiac and systemic complications due to the invasiveness of the procedure and use of cardiopulmonary bypass. Continuous monitoring of vital signs and surgical sites is essential for identifying deterioration early and guiding timely intervention. Prioritizing assessment ensures patient stability before advancing to activity or other interventions.

Rationale:
A. Encouraging the client to eat a full meal shortly after surgery is not a priority immediately after CABG. Postoperative clients are often at risk for nausea, decreased gastrointestinal motility, and aspiration, especially after anesthesia. Oral intake is usually introduced gradually, starting with clear liquids once bowel sounds and swallowing reflexes are confirmed. Premature feeding may increase complications such as aspiration or vomiting.

B. Assessing the client's vital signs regularly and monitoring for signs of surgical site infection is the priority intervention. Post-CABG clients are at risk for bleeding, arrhythmias, hypotension, and decreased cardiac output, all of which can be detected early through frequent vital sign monitoring. Monitoring the incision site also helps identify early infection or impaired wound healing, which is critical in preventing sepsis or mediastinitis.

C. Encouraging the client to ambulate immediately after surgery is inappropriate because early ambulation must be gradual and based on hemodynamic stability. Immediate activity can increase myocardial oxygen demand and strain the surgical repair. Ambulation is typically initiated after stabilization, with close monitoring for tolerance such as heart rate, blood pressure, and oxygen saturation changes.

D. Administering pain medication on a fixed schedule regardless of the client's reported pain level is not the safest approach. While adequate pain control is essential to promote breathing exercises and mobility, analgesics should be titrated based on assessment to avoid over-sedation or respiratory depression. Overmedication may mask complications such as chest pain related to cardiac ischemia or graft issues.

A. Educate the client on lifestyle modifications after discharge. B. Transfer the client to a regular medical surgical unit after the procedure. C. Evaluate the client's ECG continuously during the procedure. D. Assess the client's history of bleeding and current medications. E. Administer anticoagulants as prescribed.

Correct Answer is ["C","D","E"]

Explanation

Acute coronary syndrome (ACS) involves reduced blood flow to the myocardium due to partial or complete coronary artery obstruction. Percutaneous coronary intervention (PCI) is a time-sensitive procedure used to restore coronary perfusion and limit myocardial damage. During PCI, the nurse’s priority is to ensure hemodynamic stability, prevent thrombotic complications, and closely monitor for ischemic changes. Anticoagulation and continuous cardiac monitoring are essential for patient safety throughout the procedure.

Rationale:
A. Educating the client on lifestyle modifications after discharge is important but not an immediate priority during PCI. Patient education is part of long-term secondary prevention and is typically addressed after the client is stabilized. During the procedure, the focus is on real-time monitoring and acute intervention.

B. Transferring the client to a regular medical-surgical unit after the procedure is not an appropriate immediate intervention. Post-PCI clients require close monitoring in a specialized cardiac care or intensive care setting to detect complications such as bleeding, arrhythmias, or re-occlusion. Premature transfer may delay recognition of life-threatening complications.

C. Evaluating the client's ECG continuously during the procedure is essential because it allows immediate detection of ischemic changes, arrhythmias, or reperfusion events. Continuous cardiac monitoring ensures rapid intervention if complications arise during coronary artery manipulation. This is a critical safety measure in PCI.

D. Assessing the client's history of bleeding and current medications is crucial before and during PCI because anticoagulants and antiplatelet agents are used to prevent thrombus formation. Identifying bleeding risks helps guide safe medication administration and reduces the risk of hemorrhagic complications during the procedure.

E. Administering anticoagulants as prescribed is a priority because they prevent clot formation during PCI and reduce the risk of acute vessel occlusion. These medications help maintain coronary artery patency while the intervention is being performed. Proper dosing and timing are critical to ensure procedural success and patient safety.

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A client is on Synchronized Intermittent Mandatory Ventilation (SIMV). Which of the following statements accurately describes this mode of ventilation?

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Naxlex Comprehensive Predictor Exams

After a client has undergone coronary artery bypass graft surgery (CABG), which nursing intervention should be prioritized to minimize the risk of complications?

Correct Answer is B

Explanation

Which of the following interventions should the nurse prioritize for a client with acute coronary syndrome who is undergoing percutaneous coronary intervention (PCI)? Select all that apply.

Correct Answer is ["C","D","E"]

Explanation

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