The nurse identifies the rhythm on the EKG attachment as Ventricular Tachycardia. What is the most appropriate initial intervention for a patient with Pulseless Ventricular Tachycardia?

Choice A rationale

Administering sedative or paralytic agents is typically performed prior to or during the actual intubation process to facilitate tube passage and prevent airway trauma. Once the tube is inserted and the cuff is inflated, the priority shifts to verification of placement rather than further sedation. Giving these drugs after insertion does not provide any diagnostic data regarding whether the tube is in the trachea or the esophagus.

Choice B rationale

A chest x-ray is the definitive gold standard for confirming the depth of endotracheal tube placement. It ensures the distal tip of the tube is positioned approximately 2 to 5 cm above the carina. While other methods confirm the tube is in the trachea, the x-ray is essential to ensure it has not migrated into the right mainstem bronchus, which would cause unilateral lung expansion and potential collapse.

Choice C rationale

End-tidal carbon dioxide detection provides immediate physiological feedback that the tube is located within the respiratory tract. Since CO2 is a byproduct of alveolar gas exchange, its presence in exhaled air indicates the tube is in the trachea rather than the esophagus. A colorimetric changer or capnography waveform is a primary tool used immediately after intubation to rule out esophageal placement before further interventions are performed.

Choice D rationale

Auscultation is a critical immediate step to verify bilateral lung expansion and rule out unintentional esophageal or endobronchial intubation. The nurse should listen for equal breath sounds over the midaxillary lines and ensure there are no gurgling sounds over the epigastrium. Epigastric sounds suggest the tube is in the stomach. Breath sounds must be assessed early to ensure both lungs are being ventilated prior to securing the device.

Choice E rationale

Arterial blood gases are useful for evaluating the long-term effectiveness of ventilation and oxygenation after the patient is stabilized on a ventilator. However, they are not used for the initial confirmation of tube placement because the results take too long to obtain. Verification must be instantaneous using physical assessment and CO2 detection to prevent hypoxia. Normal pH is 7.35 to 7.45, and normal PaO2 is 80 to 100 mmHg.

Choice A rationale

Suction should never be applied during the insertion of the catheter because it can cause mucosal trauma, deplete the patient's oxygen reserves, and increase the risk of atelectasis. The catheter should be inserted with the suction turned off. Suction is only applied intermittently or continuously while withdrawing the catheter. The nurse must intervene to prevent injury to the tracheal wall and to ensure the patient maintains adequate oxygenation during the procedure.

Choice B rationale

Adjusting the wall suction to a range of 100 to 120 mm Hg is an appropriate and standard action for an adult patient. This level of pressure is sufficient to remove secretions without causing excessive damage to the delicate tracheal mucosa or causing significant lung collapse. Since this is a correct action, the RN does not need to intervene. The goal is to use the lowest effective pressure to clear the airway effectively.

Choice C rationale

Adding air to the tube or deflating the cuff during suctioning is an incorrect and dangerous practice. The cuff must remain inflated to provide a seal for mechanical ventilation and to protect the airway from the aspiration of subglottic secretions. Deflating the cuff could cause the patient to lose tidal volume or inhale oral contaminants. The RN must intervene to ensure the cuff integrity is maintained and the patient's ventilation is not compromised.

Choice D rationale

Hyperoxygenating the patient with 100 percent oxygen for at least 30 to 60 seconds before suctioning is a standard nursing intervention. Suctioning inherently removes oxygen from the airways along with secretions, which can lead to hypoxemia and cardiac arrhythmias. By providing extra oxygen beforehand, the student helps maintain the patient's oxygen saturation levels. This is a correct clinical behavior, so no intervention from the RN is required in this instance.

Choice E rationale

Inserting the catheter until resistance is met can cause significant trauma to the carina and trigger a violent cough reflex or bronchospasm. Current evidence-based guidelines recommend "shallow suctioning," where the catheter is inserted only to a predetermined length or just past the end of the ET tube. The RN should intervene to teach the student to avoid hitting the carina, thereby reducing the risk of tissue damage and patient discomfort during the procedure.