Nokea
The physician has ordered continuous positive airway pressure (CPAP) with the delivery of a patients high-flow oxygen therapy. The patient asks the nurse what the benefit of CPAP is. What would be the nurses best response?
- A. CPAP allows a higher percentage of oxygen to be safely used
- B. CPAP allows a lower percentage of oxygen to be used with a similar effect
- C. CPAP allows for greater humidification of the oxygen that is administered
- D. CPAP allows for the elimination of bacterial growth in oxygen delivery systems
Correct Answer: B
Rationale: Prevention of oxygen toxicity is achieved by using oxygen only as prescribed. Often, positive end-expiratory pressure (PEEP) or CPAP is used with oxygen therapy to reverse or prevent microatelectasis, thus allowing a lower percentage of oxygen to be used. Oxygen is moistened by passing through a humidification system. Changing the tubing on the oxygen therapy equipment is the best technique for controlling bacterial growth.
You may also like to solve these questions
A patient has been discharged home after thoracic surgery. The home care nurse performs the initial visit and finds the patient discouraged and saddened. The client states, I am recovering so slowly. I really thought I would be better by now. What nursing action should the nurse prioritize?
- A. Provide emotional support to the patient and family
- B. Schedule a visit to the patients primary physician within 24 hours
- C. Notify the physician that the patient needs a referral to a psychiatrist
- D. Place a referral for a social worker to visit the patient
Correct Answer: A
Rationale: The recovery process may take longer than the patient had expected, and providing support to the patient is an important task for the home care nurse. It is not necessary, based on this scenario, to schedule a visit with the physician within 24 hours, or to get a referral to a psychiatrist or a social worker.
The nurse is preparing to suction a patient with an endotracheal tube. What should be the nurses first step in the suctioning process?
- A. Explain the suctioning procedure to the patient and reposition the patient
- B. Turn on suction source at a pressure not exceeding 120 mm Hg
- C. Assess the patients lung sounds and SAO2 via pulse oximeter
- D. Perform hand hygiene and don nonsterile gloves, goggles, gown, and mask
Correct Answer: C
Rationale: Assessment data indicate the need for suctioning and allow the nurse to monitor the effect of suction on the patients level of oxygenation. Explaining the procedure would be the second step; performing hand hygiene is the third step, and turning on the suction source is the fourth step.
The nurse is performing patient education for a patient who is being discharged on mini-nebulizer treatments. What information should the nurse prioritize in the patients discharge teaching?
- A. How to count her respirations accurately
- B. How to collect serial sputum samples
- C. How to independently wean herself from treatment
- D. How to perform diaphragmatic breathing
Correct Answer: D
Rationale: Diaphragmatic breathing is a helpful technique to prepare for proper use of the small-volume nebulizer. Patient teaching would not include counting respirations and the patient should not wean herself from treatment without the involvement of her primary care provider. Serial sputum samples are not normally necessary.
A patient with a severe exacerbation of COPD requires reliable and precise oxygen delivery. Which mask will the nurse expect the physician to order?
- A. Non-rebreather air mask
- B. Tracheostomy collar
- C. Venturi mask
- D. Face tent
Correct Answer: C
Rationale: The Venturi mask provides the most accurate method of oxygen delivery. Other methods of oxygen delivery include the aerosol mask, tracheostomy collar, and face tents, but these do not match the precision of a Venturi mask.
The nurse is caring for a patient who is experiencing mild shortness of breath during the immediate postoperative period, with oxygen saturation readings between 89% and 91%. What method of oxygen delivery is most appropriate for the patients needs?
- A. Non-rebreathing mask
- B. Nasal cannula
- C. Simple mask
- D. Partial-rebreathing mask
Correct Answer: B
Rationale: A nasal cannula is used when the patient requires a low to medium concentration of oxygen for which precise accuracy is not essential. The Venturi mask is used primarily for patients with COPD because it can accurately provide an appropriate level of supplemental oxygen, thus avoiding the risk of suppressing the hypoxic drive. The patients respiratory status does not require a partial- or non-rebreathing mask.