Chapter 19: PREPU Management of patients with upper respiratory disorders

Which type of ventilator has a preset volume of air to be delivered with each inspiration?

Volume-controlled Explanation: With volume-controlled ventilation, the volume of air to be delivered with each inspiration is preset. Negative-pressure ventilators exert a negative pressure on the external chest. Time-cycled ventilators terminate or control inspiration after a preset time. When the pressure-cycled ventilator cycles on, it delivers a flow of air (inspiration) until it reaches a preset pressure, and then cycles off, and expiration occurs passively.

A client with a respiratory condition is receiving oxygen therapy. While assessing the client's PaO2, the nurse knows that the therapy has been effective based on which of the following readings?

84 mm Hg Explanation: In general, clients with respiratory conditions are given oxygen therapy only to increase the arterial oxygen pressure (PaO2) back to the client's normal baseline, which may vary from 60 to 95 mm Hg.

A nurse is caring for a group of clients on a medical-surgical floor. Which client is at greatest risk for developing pneumonia?

A client with a nasogastric tube Explanation: Nasogastric, orogastric, and endotracheal tubes increase the risk of pneumonia because of the risk of aspiration from improperly placed tubes. Frequent oral hygiene and checking tube placement help prevent aspiration and pneumonia. Although a client who smokes is at increased risk for pneumonia, the risk decreases if the client has stopped smoking. Ambulation helps prevent pneumonia. A client who receives opioids, not acetaminophen, has a risk of developing pneumonia because respiratory depression may occur.

Which is a potential complication of a low pressure in the endotracheal tube cuff?

Aspiration pneumonia Explanation: Low pressure in the cuff can increase the risk for aspiration pneumonia. High pressure in the cuff can cause tracheal bleeding, ischemia, and pressure necrosis.

An emergency room nurse is assessing a client who is complaining of dyspnea. Which sign would indicate the presence of a pleural effusion?

Decreased chest wall excursion upon palpation Explanation: Symptoms of pleural effusion are shortness of breath, pain, assumption of a position that decreases pain, absent breath sounds, decreased fremitus, a dull, flat sound upon percussion, and decreased chest wall excursion. The nurse may also hear a friction rub. Chest radiography and computed tomography show fluid in the involved area.

Which intervention does a nurse implement for clients with empyema?

Encourage breathing exercises Explanation: Empyema is an accumulation of thick fluid within the pleural space. To help the client with the condition, the nurse instructs the client in lung-expanding breathing exercises to restore normal respiratory function. Placing clients together, instituting precautions, and forbidding visitors would all be interventions that would depend upon what condition was causing the empyema.

A client is receiving mechanical ventilation. How frequently should the nurse auscultate the client's lungs to check for secretions?

Every 2 to 4 hours Explanation: Continuous positive-pressure ventilation increases the production of secretions regardless of the patient's underlying condition. The nurse assesses for the presence of secretions by lung auscultation at least every 2 to 4 hours.

A patient comes to the clinic with fever, cough, and chest discomfort. The nurse auscultates crackles in the left lower base of the lung and suspects that the patient may have pneumonia. What does the nurse know is the most common organism that causes community-acquired pneumonia?

Streptococcus pneumoniae Explanation: Streptococcus pneumoniae (pneumococcus) is the most common cause of community-acquired pneumonia in people younger than 60 years without comorbidity and in those 60 years and older with comorbidity (Wunderink & Niederman, 2012). S. pneumoniae, a gram-positive organism that resides naturally in the upper respiratory tract, colonizes the upper respiratory tract and can cause disseminated invasive infections, pneumonia and other lower respiratory tract infections, and upper respiratory tract infections such as otitis media and rhinosinusitis. It may occur as a lobar or bronchopneumonic form in patients of any age and may follow a recent respiratory illness.

The patient with a chest tube is being transported to X-ray. Which complication may occur if the chest tube is clamped during transportation?

Tension pneumothorax Explanation: Clamping can result in a tension pneumothorax. The other options would not occur if the chest tube was clamped during transportation.

A nurse is caring for a client with COPD who needs teaching on pursed-lip breathing. Place the steps in order in which the nurse will instruct the client.

"Inhale through your nose." "Slowly count to 3." "Exhale slowly through pursed lips." "Slowly count to 7." Explanation: Pursed-lip breathing is a technique used to prolong exhalation by propping the airways open and promoting the removal of trapped air and carbon dioxide. The nurse should instruct the client to first inhale through the nose to a slow count of 3. Next, the client should exhale slowly through pursed lips for a count of 7.

A victim has sustained a blunt force trauma to the chest. A pulmonary contusion is suspected. Which of the following clinical manifestations correlate with a moderate pulmonary contusion?

Blood-tinged sputum Explanation: The clinical manifestations of pulmonary contusions are based on the severity of bruising and parenchymal involvement. The most common signs and symptoms are crackles, decreased or absent bronchial breath sounds, dyspnea, tachypnea, tachycardia, chest pain, blood-tinged secretions, hypoxemia, and respiratory acidosis. Patients with moderate pulmonary contusions often have a constant, but ineffective cough and cannot clear their secretions.

A client is diagnosed with mild obstructive sleep apnea after having a sleep study performed. What treatment modality will be the most effective for this client?

Continuous positive airway pressure (CPAP) Explanation: CPAP provides positive pressure to the airways throughout the respiratory cycle. Although it can be used as an adjunct to mechanical ventilation with a cuffed endotracheal tube or tracheostomy tube to open the alveoli, it is also used with a leak-proof mask to keep alveoli open, thereby preventing respiratory failure. CPAP is the most effective treatment for obstructive sleep apnea because the positive pressure acts as a splint, keeping the upper airway and trachea open during sleep. CPAP is used for clients who can breathe independently. BiPAP is most often used for clients who require ventilatory assistance at night, such as those with severe COPD or sleep apnea.

The nurse has instructed a client on how to perform pursed-lip breathing. The nurse recognizes the purpose of this type of breathing is to accomplish which result?

Improve oxygen transport; induce a slow, deep breathing pattern; and assist the client to control breathing Explanation: Pursed-lip breathing, which improves oxygen transport, helps induce a slow, deep breathing pattern and assists the client to control breathing, even during periods of stress. This type of breathing helps prevent airway collapse secondary to loss of lung elasticity in emphysema.

The nurse is caring for a patient with pleurisy. What symptoms does the nurse recognize are significant for this patient's diagnosis?

Stabbing pain during respiratory movement Explanation: When the inflamed pleural membranes rub together during respiration (intensified on inspiration), the result is severe, sharp, knifelike pain. The key characteristic of pleuritic pain is its relationship to respiratory movement. Taking a deep breath, coughing, or sneezing worsens the pain. Pleuritic pain is limited in distribution rather than diffuse; it usually occurs only on one side. The pain may become minimal or absent when the breath is held. It may be localized or radiate to the shoulder or abdomen. Later, as pleural fluid develops, the pain decreases.

The nurse suctions a patient through the endotracheal tube for 20 seconds and observes dysrhythmias on the monitor. What does the nurse determine is occurring with the patient?

The patient is hypoxic from suctioning. Explanation: Apply suction while withdrawing and gently rotating the catheter 360 degrees (no longer than 10-15 seconds). Prolonged suctioning may result in hypoxia and dysrhythmias, leading to cardiac arrest.

A patient in the ICU has been orally intubated and on mechanical ventilation for 2 weeks after having a severe stroke. What action does the nurse anticipate the physician will take now that the patient has been intubated for this length of time?

The patient will have an insertion of a tracheostomy tube. Explanation: Endotracheal intubation may be used for no longer than 14 to 21 days, by which time a tracheostomy must be considered to decrease irritation of and trauma to the tracheal lining, to reduce the incidence of vocal cord paralysis (secondary to laryngeal nerve damage), and to decrease the work of breathing (Wiegand, 2011).