Nokea
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.
You may also like to solve these questions
The nurse is caring for a patient who has acute pancreatitis and the mixed venous oxygen saturation (SvO2) is decreasing. Which of the following parameters should the nurse assess to determine the possible cause of the decreased SvO2?
- A. Weight
- B. Amylase
- C. Temperature
- D. Urinary output
Correct Answer: C
Rationale: Elevated temperature increases metabolic demands and oxygen use by tissues, resulting in a drop in oxygen saturation of mixed venous blood. Information about the patient's weight, urinary output, and amylase will not help in determining the cause of the patient's drop in SvO2.
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.
The nurse is caring for a patient with a left radial arterial line. Which of the following assessments indicates a need for the nurse to take action?
- A. The left hand is cooler than the right hand.
- B. The mean arterial pressure (MAP) is 75 mm Hg.
- C. The system is delivering only 3 mL of flush solution per hour.
- D. The flush bag and tubing were last changed 3 days previously.
Correct Answer: A
Rationale: The change in temperature of the left hand suggests that blood flow to the left hand is impaired. The flush system needs to be changed every 96 hours or per agency policy. A mean arterial pressure (MAP) of 75 mm Hg is normal. Flush systems for hemodynamic monitoring are set up to deliver 3-6 mL/hour of flush solution.
The nurse is assessing a patient with a central venous catheter notes the catheter insertion site is red and tender with the patient's temperature 38.8°C (101.8°F). Which of the following actions should the nurse implement?
- A. Administer analgesics and antibiotics.
- B. Check the site frequently for any swelling.
- C. Discontinue the catheter and culture the tip.
- D. Change the flush system and monitor the site.
Correct Answer: C
Rationale: The information indicates that the patient has a local and systemic infection caused by the catheter and the catheter should be discontinued. Changing the flush system, administration of analgesics, and continued monitoring will not help prevent or treat the infection. Administration of antibiotics is appropriate, but the line should still be discontinued to avoid further complications such as endocarditis.
The nurse is assisting with insertion of a pulmonary artery (PA) catheter in a patient. Which of the following data identifies that the catheter is correctly placed?
- A. Monitor shows a typical PAOP tracing.
- B. PA waveform is observed on the monitor.
- C. Systemic arterial pressure tracing appears on the monitor.
- D. Catheter has been inserted to the 22-cm marking on the line.
Correct Answer: A
Rationale: One of the purposes of a PA line is to measure PAOP, so the catheter is floated through the pulmonary artery until the dilated balloon wedges in a distal branch of the pulmonary artery, and the PAOP readings are available. After insertion, the balloon is deflated and the PA waveform will be observed. Systemic arterial pressures are obtained using an arterial line. The length of catheter needed for insertion will vary with patient size.