The nurse assesses a client with dyspnea, tracheal deviation, and pulse oximetry reading of 86 What is the nurse's interpretation of these findings?
Acute respiratory distress syndrome.
Pulmonary contusion.
Tension pneumothorax.
Flail chest.
The Correct Answer is C
Choice A rationale
Acute respiratory distress syndrome involves diffuse alveolar damage and noncardiogenic pulmonary edema causing severe hypoxemia. While the pulse oximetry reading of 86 percent is consistent with the hypoxemia found in this syndrome, the clinical hallmark is bilateral infiltrates on a chest radiograph. This condition does not typically cause the mechanical shifting of mediastinal structures. Therefore, the presence of tracheal deviation makes this diagnosis unlikely compared to other obstructive mechanical pathologies of the thoracic cavity.
Choice B rationale
A pulmonary contusion is essentially a bruise of the lung tissue caused by blunt chest trauma, leading to alveolar hemorrhage and edema. This can certainly cause a pulse oximetry reading of 86 percent due to impaired gas exchange at the capillary level. However, a contusion is a parenchymal injury and does not create the positive pressure required to shift the trachea. Normal oxygen saturation is 95 percent to 100 percent, so 86 percent indicates significant respiratory compromise.
Choice C rationale
Tension pneumothorax occurs when air enters the pleural space but cannot escape, causing a rapid buildup of positive pressure. This pressure collapses the affected lung and pushes the mediastinum toward the opposite side, resulting in tracheal deviation. The high intrapleural pressure also compresses the vena cava, reducing venous return and cardiac output. This explains the severe dyspnea and the low pulse oximetry reading of 86 percent seen in this life-threatening medical emergency requiring immediate needle decompression.
Choice D rationale
Flail chest results from multiple rib fractures in two or more places, creating a free-floating segment of the chest wall. This causes paradoxical chest movement where the injured area moves inward during inspiration and outward during expiration. While this can lead to severe dyspnea and low oxygen saturation, it does not create the unilateral tension needed to deviate the trachea. Tracheal deviation is a specific sign of tension within the pleural space rather than chest wall instability.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Facial burns involve complex airway management and specialized wound care that exceeds the typical scope of a medical unit nurse. Partial-thickness burns to the face require frequent assessment for edema, which can cause respiratory compromise. Debridement in this sensitive area involves meticulous technique to prevent infection and scarring. A float nurse lacks the specific burn-unit training required to manage these high-risk interventions and the associated pain management protocols effectively.
Choice B rationale
Cultured epithelial autografts are extremely fragile and expensive skin substitutes that require specialized nursing knowledge for successful engraftment. These grafts consist of thin layers of cells that can be easily dislodged or damaged by improper positioning or dressing contact. Nurses in a burn unit receive specific training on how to monitor these grafts for adherence and signs of rejection. A medical unit nurse would not be familiar with these critical post-operative protocols.
Choice C rationale
Bleb aspiration under an autograft is a delicate procedure that requires specific expertise to ensure the graft remains viable and attached to the wound bed. Fluid accumulation or blebs can prevent revascularization of the transplanted skin, leading to graft failure. This task is typically performed by experienced burn clinicians who understand the anatomy of skin grafting. Entrusting this to a float nurse would pose a significant risk to the patient's surgical outcome and recovery.
Choice D rationale
Weight loss is a common physiological response to the hypermetabolic state induced by major thermal injuries, but it is a condition that medical-surgical nurses are well-equipped to manage. Monitoring nutritional intake, administering supplements, and tracking daily weights are core competencies for any registered nurse. Since this patient is stable and the primary issue is metabolic support rather than acute burn wound or graft management, it is the most appropriate assignment for a float nurse.
Correct Answer is C
Explanation
Choice A rationale
Acute respiratory distress syndrome involves diffuse alveolar damage and noncardiogenic pulmonary edema causing severe hypoxemia. While the pulse oximetry reading of 86 percent is consistent with the hypoxemia found in this syndrome, the clinical hallmark is bilateral infiltrates on a chest radiograph. This condition does not typically cause the mechanical shifting of mediastinal structures. Therefore, the presence of tracheal deviation makes this diagnosis unlikely compared to other obstructive mechanical pathologies of the thoracic cavity.
Choice B rationale
A pulmonary contusion is essentially a bruise of the lung tissue caused by blunt chest trauma, leading to alveolar hemorrhage and edema. This can certainly cause a pulse oximetry reading of 86 percent due to impaired gas exchange at the capillary level. However, a contusion is a parenchymal injury and does not create the positive pressure required to shift the trachea. Normal oxygen saturation is 95 percent to 100 percent, so 86 percent indicates significant respiratory compromise.
Choice C rationale
Tension pneumothorax occurs when air enters the pleural space but cannot escape, causing a rapid buildup of positive pressure. This pressure collapses the affected lung and pushes the mediastinum toward the opposite side, resulting in tracheal deviation. The high intrapleural pressure also compresses the vena cava, reducing venous return and cardiac output. This explains the severe dyspnea and the low pulse oximetry reading of 86 percent seen in this life-threatening medical emergency requiring immediate needle decompression.
Choice D rationale
Flail chest results from multiple rib fractures in two or more places, creating a free-floating segment of the chest wall. This causes paradoxical chest movement where the injured area moves inward during inspiration and outward during expiration. While this can lead to severe dyspnea and low oxygen saturation, it does not create the unilateral tension needed to deviate the trachea. Tracheal deviation is a specific sign of tension within the pleural space rather than chest wall instability.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
