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When a patient's pulmonary artery catheter becomes wedged and does not reflect pulmonary artery pressures, which of the following actions should the nurse take?
- A. Reposition the patient and check for a pulmonary artery tracing.
- B. Deflate the balloon and flush the catheter with saline.
- C. Notify a health care provider or specially trained nurse.
- D. Increase the volume in the balloon to open the catheter.
Correct Answer: C
Rationale: When the catheter is in the wedge position, blood flow past the catheter is obstructed, placing the patient at risk for pulmonary infarction. A health care provider or specially trained nurse should be called to reposition the catheter. The other actions will not correct the wedging of the PA catheter.
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Which of the following information obtained by the nurse when caring for a patient receiving mechanical ventilation indicates the need for suctioning?
- A. The respiratory rate is 17 breaths/minute.
- B. The pulse oximeter shows a SpO2 of 93%.
- C. The lungs have occasional audible expiratory wheezes.
Correct Answer: A
Rationale: The increase in respiratory rate indicates that the patient may have decreased airway clearance and requires suctioning. Suctioning is done when patient assessment data indicate that it is needed, not on a scheduled basis. Occasional expiratory wheezes do not indicate poor airway clearance, and suctioning the patient may induce bronchospasm and increase wheezing. An SpO2 of 93% is acceptable and does not suggest that immediate suctioning is needed.
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 who has an arterial catheter in the radial artery to monitor blood pressure. Which of the following information obtained by the nurse is most important to report to the health care provider?
- A. The patient has a positive Allen test.
- B. The mean arterial pressure (MAP) is 86 mm Hg.
- C. There is redness at the catheter insertion site.
- D. The dicrotic notch is visible in the waveform.
Correct Answer: C
Rationale: Redness at the catheter insertion site indicates possible infection. The Allen test is performed before arterial line insertion, and a positive test indicates normal ulnar artery perfusion. An MAP of 86 is normal and the dicrotic notch is normally present on the arterial waveform.
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 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.