ATI LPN
Fundamentals of Nursing: The Art and Science of Person-Centered Care Tenth, North American Edition
Chapter 40 : Oxygenation and Perfusion Questions
Question 1 of 5
A nurse plans to suction a patient's endotracheal tube using the open suction technique. Which intervention is appropriate for this technique?
Correct Answer: C
Rationale:
To prevent hypoxemia, prior to endotracheal suctioning, the nurse provides 100% oxygen for a minimum of 30 seconds. This is referred to as hyperoxygenation. The nurse limits the application of suction to no more than 10 to 15 seconds. The external diameter of the suction catheter should not exceed half of the internal diameter of the endotracheal tube. An inline suction device is considered a closed, self-contained system used for a 'closed technique' for suction; these are changed every 24 hours.
Question 2 of 5
A nurse is caring for a patient admitted for an acute asthma exacerbation. The patient reports extreme dyspnea, stating, 'Turn up the oxygen, I'm not getting enough air.' Which actions would the nurse take first?
Correct Answer: B
Rationale: Using the nursing process, the nurse first assesses the oxygen saturation via pulse oximetry before changing the oxygen flow rate. Suctioning is provided to remove respiratory secretions; the nurse would note adventitious breath sounds or phlegm with cough indicating a need for suction. A peak flow meter is used to assess the point of highest flow during forced expiration. It is routinely used for patients with moderate or severe asthma to measure the severity of the disease and degree of disease management. While cyanosis of the lips is a late sign of hypoxemia, the nurse can quickly begin to alleviate or lessen dyspnea by simply repositioning the patient.
Question 3 of 5
A patient with COPD is unable to perform personal hygiene without becoming exhausted. What nursing intervention would be appropriate for this patient?
Correct Answer: D
Rationale:
To prevent fatigue during activities including hygiene, the nurse should group (personal care) activities into smaller steps and encourage rest periods between activities. The nurse promotes and maintains dignity, independence, and strength by assisting with activities when the patient has difficulty. The nurse should encourage the patient to voice feelings and concerns about self-care deficits and teach the patient to coordinate pursed-lip or diaphragmatic breathing with the activity.
Question 4 of 5
A nurse working in the pulmonary clinic is providing teaching to patients with altered oxygenation due to conditions such as asthma and COPD. Which measures would the nurse recommend?
Correct Answer: B,D,E
Rationale: When caring for patients with COPD, it is important to help create an environment that is likely to reduce anxiety, which increases oxygen demand. A high-protein/high-calorie diet is recommended to meet increased energy needs due to the work of breathing. People with dyspnea and orthopnea are most comfortable in a high-Fowler (upright) position because accessory muscles can easily be used to facilitate respiration and lung expansion. Meals should be eaten 1 to 2 hours after breathing treatments; exercise and drinking 2 to 3 quarts (1.9 to 2.9 L) of clear fluids daily is recommended, rather than 2 to 3 pints.
Question 5 of 5
A student with a history of asthma visits the school nurse reporting difficulty breathing and wheezing. Which tool would the nurse use to assess the severity of airway resistance?
Correct Answer: A
Rationale: A peak flow meter is used to assess the point of highest flow during forced expiration. It is routinely used by and for patients with moderate or severe asthma to measure the severity of the disease and degree of disease management. Capnography or end-tidal CO2 monitoring is used for assessing and monitoring ventilation and placement of artificial airways, predicting patients who are at risk for respiratory compromise, are experiencing partial or complete airway obstruction, or are experiencing hypoventilation. A chest tube is used to remove air or fluid from the pleural space. The arterial blood gas (ABG) is used to assess oxygenation, ventilation, and acid-base status; it is invasive and not performed in the school setting.