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Premature ventricular contractions (PVCs) occur while the nurse is suctioning a patient's endotracheal tube. Which of the following actions by the nurse is best?
- A. Decrease the suction pressure to 80 mm Hg.
- B. Stop and ventilate the patient with 100% oxygen.
- C. Document the dysrhythmia in the patient's chart.
- D. Give prescribed PRN antidysrhythmic medications.
Correct Answer: B
Rationale: Dysrhythmias during suctioning may indicate hypoxemia or sympathetic nervous system stimulation, and the nurse should stop suctioning and ventilate the patient with 100% oxygen. Lowering the suction pressure will decrease the effectiveness of suctioning without improving the hypoxemia. Because the PVCs occurred during suctioning, there is no need for antidysrhythmic medications (which may have adverse effects) unless they recur when the patient is well oxygenated.
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The nurse is caring for a patient with pulmonary hypertension. Which of the following parameters should the nurse monitor as an index of right ventricular afterload?
- A. Mean arterial pressure (MAP)
- B. Central venous pressure (CVP)
- C. Pulmonary vascular resistance (PVR)
- D. Pulmonary artery wedge pressure (PAWP)
Correct Answer: C
Rationale: Pulmonary vascular resistance and pulmonary artery pressure are indexes of right ventricular afterload. The other parameters do not directly assess for right ventricular afterload.
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.
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.
A patient has a nursing diagnosis of disturbed sleep pattern related to difficulty maintaining sleep state. Which of the following actions should the nurse include in the plan of care?
- A. Discontinue assessments during the night to allow uninterrupted sleep.
- B. Administer prescribed sedatives or opioids at bedtime to promote sleep.
- C. Silence monitor alarms to allow 30- to 40-minute rest periods.
- D. Cluster nursing activities so that the patient has uninterrupted rest periods.
Correct Answer: D
Rationale: Clustering nursing activities and providing uninterrupted rest periods will minimize sleep-cycle disruption. Sedative and opioid medications tend to decrease the amount of rapid eye movement (REM) sleep and can contribute to sleep disturbance and disturbed sensory perception. Silencing the alarms on the cardiac monitors would be unsafe in a critically ill patient, as would discontinuing assessments during the night.
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.