Acute Respiratory Failure/Mechanical Ventilation

A client appears dyspneic, but the oxygen saturation is 97%. What action by the nurse is best? a. Assess for other signs of hypoxia. b. Change the sensor on the pulse oximeter. c. Obtain a new oximeter from central supply. d. Tell the client to take slow, deep breaths.

ANS: A Pulse oximetry is not always the most accurate assessment tool for hypoxia as many factors can interfere, producing normal or near-normal readings in the setting of hypoxia. The nurse would conduct a more thorough assessment. The other actions are not appropriate for a hypoxic client.

A nurse is caring for a client on mechanical ventilation and finds the client agitated and thrashing about. What action by the nurse is most appropriate? a. Assess the cause of the agitation. b. Reassure the client that he or she is safe. c. Restrain the client's hands. d. Sedate the client immediately.

ANS: A The nurse needs to determine the cause of the agitation. The inability to communicate often makes clients anxious, even to the point of panic. Pain, confusion, and hypoxia can also cause agitation. Once the nurse determines the cause of the agitation, he or she can implement measures to relieve the underlying cause. Reassurance is also important but may not address the etiology of the agitation. Restraints and more sedation may be necessary but not as a first step. Ensuring the client is adequately oxygenated is the priority.

A newborn has meconium aspiration at birth. The nurse notes increasing respiratory distress. What action takes priority? a. Obtain an oxygen saturation. b. Notify the provider at once. c. Stimulate the baby to increase respirations. d. Prepare to initiate ECMO.

ANS: A This baby has a risk for, and signs of, persistent pulmonary hypertension. The nurse first checks an oxygen saturation then notifies the provider, or alternatively, gets the reading (and other assessments) while another nurse does the notification. This baby most likely has tachypnea so stimulation to increase respirations is not needed. ECMO may or may not be needed depending on whether or not other treatments work.

The nurse caring for mechanically ventilated clients uses best practices to prevent ventilator-associated pneumonia. What actions are included in this practice? (Select all that apply.) a. Adherence to proper hand hygiene b. Administering antiulcer medication c. Elevating the head of the bed d. Providing oral care per protocol e. Suctioning the client on a regular schedule f. Turning and positioning the client at least every 2 hours

ANS: A, B, C, D, F The "ventilator bundle" is a group of care measures to prevent ventilator-associated pneumonia. Actions in the bundle include using proper hand hygiene, giving antiulcer medications, elevating the head of the bed, providing frequent oral care per policy, preventing aspiration, turning and positioning, and providing pulmonary hygiene measures. Suctioning is done as needed.

The nurse caring for mechanically ventilated clients knows that older adults are at higher risk for weaning failure. What age-related changes contribute to this? (Select all that apply.) a. Chest wall stiffness b. Decreased muscle strength c. Inability to cooperate d. Less lung elasticity e. Poor vision and hearing f. Chronic anemia

ANS: A, B, D Age-related changes that increase the difficulty of weaning older adults from mechanical ventilation include increased stiffness of the chest wall, decreased muscle strength, and less elasticity of lung tissue. Not all older adults have an inability to cooperate or poor sensory acuity. Anemia can make it difficult to wean a client, but this is not a normal age-related change.

A nurse is caring for a client in acute respiratory failure who is on mechanical ventilation. What actions will promote comfort in this client? (Select all that apply.) a. Allow visitors at the client's bedside. b. Ensure that the client can communicate if awake. c. Keep the television tuned to a favorite channel. d. Provide back and hand massages when turning. e. Turn the client every 2 hours or more.

ANS: A, B, D, E There are many basic care measures that can be employed for the client who is on a ventilator. Allowing visitation, providing a means of communication, massaging the client's skin, and routinely turning and repositioning the client are some of them. Keeping the TV on will interfere with sleep and rest.

A 100-kg client has developed ARDS and needs mechanical ventilation. Which of the following are potentially correct ventilator management choices? (Select all that apply.) a. Tidal volume: 600 mL b. Volume-controlled ventilation c. PEEP based on oxygen saturation d. Suctioning every hour e. High-frequency oscillatory ventilation f. Limited turning for ventilator pressures

ANS: A, C, E The client with ARDS who needs mechanical ventilation benefits from "open lung" and lung protective strategies, such as using low tidal volumes (6 mL/kg body weight). Pressure-controlled ventilation is preferred due to the high pressures often required in these clients. PEEP usually starts at 5 cm H2O and adjusted to keep oxygen saturations in an acceptable range. Suctioning may need to be frequent due to secretions, but is not scheduled hourly. High-frequency oscillatory ventilation is an alternative to traditional modes of ventilation. Early mobility is encouraged as is turning and positioning the client.

A nurse is preparing to admit a client on mechanical ventilation for acute respiratory failure from the emergency department. What action does the nurse take first? a. Assessing that the ventilator settings are correct b. Ensuring that there is a bag-valve-mask in the room c. Obtaining personal protective equipment d. Planning to suction the client upon arrival to the room

ANS: B Having a bag-valve-mask device is critical in case the client needs manual breathing. The respiratory therapist is usually primarily responsible for setting up the ventilator, although the nurse would know and check the settings. Personal protective equipment is important, but ensuring client safety is the most important action. The client may or may not need suctioning on arrival.

The nurse is caring for a child with acute respiratory distress syndrome (ARDS) associated with sepsis. Nursing actions should include which of the following? a. Forcing fluids b. Monitoring pulse oximetry c. Instituting seizure precautions d. Encouraging a high-protein diet

ANS: B Monitoring cardiopulmonary status is an important evaluation tool in the care of the child with ARDS. Maintenance of vascular volume and hydration is important and should be done parenterally. Seizures are not a side effect of ARDS. Adequate nutrition is necessary, but a high-protein diet is not helpful.

A client with ARDS is receiving minimal amounts of IV fluids. The new nurse notes the client is scheduled to receive a diuretic at this time. The nurse consults the Staff Development Nurse to determine the best course of action. What will the new nurse do? a. Contact the primary health care provider. b. Give the ordered diuretic as scheduled. c. Request an increase in the IV rate. d. Calculate the client's 24-hour fluid balance.

ANS: B Research has shown that clients with ARDS may benefit from conservative fluid therapy along with diuretics to maintain fluid balance. The nurse will give the ordered diuretic as scheduled. There is no reason to contact the provider or request an increased IV rate. The nurse can calculate the 24-hour fluid balance, but this will not influence the administration of the medication.

A preschool child in the emergency department has a respiratory rate of 10 breaths per minute. How should the nurse interpret this finding? a. The child is relaxed. b. Respiratory failure is likely. c. This child is in respiratory distress. d. The child's condition is improving.

ANS: B Very slow breathing in an ill child is an ominous sign, indicating respiratory failure. Although the respiratory rate slows when an individual is relaxed, a rate of 10 breaths per minute in an ill preschool child is not a normal finding and is cause for concern. A rapid respiratory rate indicates respiratory distress. Other signs of respiratory distress may include retractions, grunting, and nasal flaring. A respiratory rate of 10 breaths per minute is not a normal finding for a preschool child nor does it demonstrate improvement.

A nurse is assisting the primary health care provider (PHCP) who is intubating a client. The PHCP has been attempting to intubate for 40 seconds. What action by the nurse is best? a. Ensure that the client has adequate sedation. b. Find another qualified provider to intubate. c. Interrupt the procedure to give oxygen. d. Monitor the client's oxygen saturation.

ANS: C Each intubation attempt should not exceed 30 seconds (15 is preferable) as it causes hypoxia. The nurse would interrupt the intubation attempt and give the client oxygen. The nurse would also have adequate sedation during the procedure and monitor the client's oxygen saturation, but these do not take priority. Finding another qualified provider to intubate the client is not appropriate at this time.

Of all the signs seen in infants with respiratory distress syndrome, which sign is especially indicative of the syndrome? a. Pulse more than 160 beats/min b. Circumoral cyanosis c. Grunting d. Substernal retractions

ANS: C Grunting increases the pressure inside the alveoli to keep them open when surfactant is insufficient. This is a characteristic and often early sign of RDS. The other assessments are not specific to RDS.

A nurse is assessing a client who is suspected of having ARDS. The nurse is confused that although the client appears dyspneic and the oxygen saturation is 88% on 6 L/min of oxygen, the client's lungs are clear. What explanation does the more senior nurse provide? a. "The client is too dehydrated for moist-sounding lungs." b. "The client hasn't started having any bronchospasm yet." c. "Lung edema is in the interstitial tissues, not the airways." d. "Clients with ARDS usually have clear lung sounds."

ANS: C The clear lung sounds are due to the fact that the edema is found in the lung interstitial tissues, where it can't be auscultated, instead of in the airways. It is not related to the client being dehydrated or having bronchospasm. The statement about all clients with ARDS having clear lung sounds does not provide any information.

An intubated client's oxygen saturation has dropped to 88%. What action by the nurse takes priority? a. Determine if the tube is kinked. b. Ensure that all connections are patent. c. Listen to the client's lung sounds. d. Suction the endotracheal tube.

ANS: C When an intubated client shows signs of hypoxia, check for DOPE: displaced tube (most common cause), obstruction (often by secretions), pneumothorax, and equipment problems. The nurse listens for equal, bilateral breath sounds first to determine if the endotracheal tube is still correctly placed. If this assessment is normal, the nurse would follow the mnemonic and perform suction if needed, assess for pneumothorax, and finally check the equipment.

The nurse observes abdominal breathing in a 2-year-old child. What does this finding indicate? a. Imminent respiratory failure b. Hypoxia c. Normal respiration d. Airway obstruction

ANS: C Young children normally exhibit abdominal breathing. When measuring respiratory rate, the nurse should observe the rise and fall of the abdomen. A very slow respiration rate is an indicator of respiratory failure. Nasal flaring with inspiration and grunting on expiration occurs when hypoxia is present. The child with an airway obstruction will use accessory muscles to breathe.

When administering a neuromuscular blocking drug, the nurse needs to remember which principle? a. It is used instead of general anesthesia during surgery. b. Only skeletal muscles are paralyzed; respiratory muscles remain functional. c. It causes sedation and pain relief while allowing for lower doses of anesthetics. d. Artificial mechanical ventilation is required because of paralyzed respiratory muscles.

ANS: D Patients receiving neuromuscular blocking drugs require artificial mechanical ventilation because of the resultant paralysis of the respiratory muscles. In addition, they do not cause sedation or pain relief. They are used along with, not instead of, general anesthesia during surgery.

A new nurse asks for an explanation of "refractory hypoxemia." What answer by the staff development nurse is best? a. "It is chronic hypoxemia that accompanies restrictive airway disease." b. "It is hypoxemia from lung damage due to mechanical ventilation." c. "It is hypoxemia that continues even after the client is weaned from oxygen." d. "It is hypoxemia that persists even with 100% oxygen administration."

ANS: D Refractory hypoxemia is hypoxemia that persists even with the administration of 100% oxygen. It is a cardinal sign of acute respiratory distress syndrome. It does not accompany restrictive airway disease and is not caused by the use of mechanical ventilation or by being weaned from oxygen.

A client is on mechanical ventilation and the client's spouse wonders why ranitidine is needed since the client "only has lung problems." What response by the nurse is best? a. "It will increase the motility of the gastrointestinal tract." b. "It will keep the gastrointestinal tract functioning normally." c. "It will prepare the gastrointestinal tract for enteral feedings." d. "It will prevent ulcers from the stress of mechanical ventilation."

ANS: D Stress ulcers can occur in many clients who are receiving mechanical ventilation, and often prophylactic medications are used to prevent them and possible subsequent aspiration. Frequently used medications include antacids, histamine blockers, and proton pump inhibitors. Ranitidine is a histamine-blocking agent.

Why do infants and young children quickly have respiratory distress in acute and chronic alterations of the respiratory system? a. They have a widened, shorter airway. b. There is a defect in their sucking ability. c. The gag reflex increases mucous production. d. Mucus and edema obstruct small airways.

ANS: D The airway in infants and young children is narrow, and respiratory distress can occur quickly because mucus and edema can cause obstruction to their small airways. Sucking is not necessarily related to problems with the airway. The gag reflex is necessary to prevent aspiration. It does not produce mucus.

A nurse is caring for a client on mechanical ventilation. When double-checking the ventilator settings with the respiratory therapist, what would the nurse ensure? a. The client is able to initiate spontaneous breaths. b. The inspired oxygen has adequate humidification. c. The upper peak airway pressure limit alarm is off. d. The upper peak airway pressure limit alarm is on.

ANS: D The upper peak airway pressure limit alarm will sound when the airway pressure reaches a preset maximum. This is critical to prevent barotrauma to the lungs. Alarms are never be turned off. Initiating spontaneous breathing is important for some modes of ventilation but not others. Adequate humidification is important but does not take priority over preventing injury.