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Which of the following actions should the nurse implement to verify the correct placement of an endotracheal tube (ET) after insertion?
- A. Auscultate for the presence of bilateral breath sounds.
- B. Obtain a portable chest radiograph to check tube placement.
- C. Observe the chest for symmetrical movement with ventilation.
- D. Use an end-tidal CO2 monitor to check for placement in the trachea.
Correct Answer: D
Rationale: End-tidal CO2 monitors are currently recommended for rapid verification of ET placement. Auscultation for bilateral breath sounds and checking chest expansion also are used, but they are not as accurate as end-tidal CO2 monitoring. A chest x-ray confirms the placement but is done after the tube is secured.
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Which of the following actions should the nurse do to inflate the cuff of an endotracheal tube (ET) when the patient is on mechanical ventilation?
- A. Inflate the cuff until the pilot balloon is firm.
- B. Inflate the cuff with a minimum of 10 mL of air.
- C. Inject air into the cuff until a manometer shows 15 mm Hg pressure.
- D. Inject air into the cuff until a slight leak is heard only at peak inflation.
Correct Answer: D
Rationale: The minimal occluding volume technique involves injecting air into the cuff until an air leak is present only at peak inflation. The volume to inflate the cuff varies with the ET and the patient's size. Cuff pressure should be maintained at 20-25 mm Hg. An accurate assessment of cuff pressure cannot be obtained by palpating the pilot balloon.
The nurse notes thick, white respiratory secretions from a patient who is receiving mechanical ventilation. Which of the following interventions will be most effective in resolving this problem?
- A. Suction the patient every hour.
- B. Reposition the patient every 2 hours.
- C. Add additional water to the patient's enteral feedings.
- D. Instill 5 ml of sterile saline into the endotracheal tube (ET) before suctioning.
Correct Answer: C
Rationale: Because the patient's secretions are thick, better hydration is indicated. Suctioning every hour without any specific evidence for the need will increase the incidence of mucosal trauma and would not address the etiology of the ineffective airway clearance. Instillation of saline does not liquefy secretions and may decrease the SpO2. Repositioning the patient is appropriate but will not decrease the thickness of secretions.
The intensive care unit nurse educator is teaching a new staff nurse about hemodynamic monitoring. Which of the following actions indicates that the teaching has been effective?
- A. Positions the zero-reference stopcock line level with the phlebostatic axis.
- B. Balances and calibrates the hemodynamic monitoring equipment every hour.
- C. Rechecks the location of the phlebostatic axis when changing the patient's position.
- D. Ensures that the patient is lying supine with the head of the bed flat for all readings.
Correct Answer: A
Rationale: For accurate measurement of pressures, the zero-reference level should be at the phlebostatic axis. There is no need to rebalance and recalibrate monitoring equipment hourly. Accurate hemodynamic readings are possible with the patient's head raised to 45 degrees or in the prone position. The anatomic position of the phlebostatic axis does not change when patients are repositioned.
The charge nurse is mentoring a new RN staff member providing care to a patient receiving mechanical ventilation. Which of the following actions by the new RN indicates the need for more education?
- A. The RN increases the FIO2 up to 100%.
- B. The RN secures a bite block in place using adhesive tape.
- C. The RN positions the patient with the head of bed at 10 degrees.
- D. The RN asks for assistance to turn the patient to the prone position.
Correct Answer: C
Rationale: The head of the patient's bed should be positioned at 30-45 degrees to prevent ventilator-acquired pneumonia. The other actions by the new RN are appropriate.
The nurse is caring for an older-adult patient who has stabilized after being in the intensive care unit (ICU) for a week and is preparing for transfer to the step-down unit when the nurse notices that the patient has new onset confusion. Which of the following actions should the nurse implement?
- A. Inform the receiving nurse and then transfer the patient.
- B. Notify the health care provider and postpone the transfer.
- C. Administer PRN lorazepam and cancel the transfer.
- D. Obtain an order for restraints as needed and transfer the patient.
Correct Answer: A
Rationale: The patient's history and symptoms most likely indicate delirium associated with the sleep deprivation with sensory overload in the ICU environment. Informing the receiving nurse and transferring the patient is appropriate. Postponing the transfer is likely to prolong the delirium. Benzodiazepines and restraints contribute to delirium and agitation.