A nurse is caring for a toddler who has acute laryngotracheobronchitis and has been placed in a cool mist tent. Which of the following findings indicates that the treatment has been effective?
A.
Barking cough
B.
Decreased stridor
C.
Improved hydration
D.
Decreased temperature
The Correct Answer and Explanation is:
The correct answer is B. Decreased stridor.
Explanation:
Acute laryngotracheobronchitis (LTB), commonly referred to as croup, is an upper airway infection characterized by inflammation of the larynx, trachea, and bronchi. It typically presents with symptoms such as a barking cough, stridor (a high-pitched, wheezing sound during inspiration), and respiratory distress. The management of LTB often involves supportive care and symptomatic treatment to reduce inflammation and improve breathing.
One of the common treatments for LTB is the use of a cool mist tent or cool mist therapy. This treatment aims to provide symptomatic relief by moistening the airways, which can help reduce inflammation and ease breathing. The presence of stridor, which is a hallmark sign of upper airway obstruction due to inflammation, is particularly concerning.
Decreased stridor is a critical indicator that the treatment is effective. Stridor occurs when there is narrowing or obstruction in the upper airway, leading to turbulent airflow and the characteristic high-pitched sound. When the cool mist therapy helps to reduce inflammation and relieve airway obstruction, stridor typically decreases. This reduction in stridor indicates that the airway inflammation is diminishing and that the treatment is having a positive effect.
Option A (Barking cough) is a common symptom of croup but is not necessarily an indicator of treatment effectiveness. While the cough may persist, a reduction in stridor is a more specific indicator of improvement.
Option C (Improved hydration) is important for overall health but is not a direct measure of the effectiveness of the cool mist treatment for LTB.
Option D (Decreased temperature) might be associated with overall recovery, but it is not a specific indicator of the effectiveness of cool mist therapy in reducing airway inflammation and stridor.
In summary, the most direct and relevant indicator of the effectiveness of cool mist therapy in the treatment of acute laryngotracheobronchitis is the decreased stridor.