An emergency room nurse is assessing a client who has asthma and difficulty breathing. Which of the following findings should indicate to the nurse that the client is experiencing status asthmaticus?

Rationale: A. Coughing: While coughing is a common symptom of asthma, it is not specific to status asthmaticus. It can occur during mild, moderate, or severe asthma episodes and does not necessarily indicate life-threatening severity. B. Flat neck veins: Flat neck veins are not characteristic of status asthmaticus. In severe respiratory distress, the client may show signs of increased intrathoracic pressure, which can lead to distended neck veins rather than flat ones. C. Use of accessory muscles: The use of accessory muscles to breathe is a sign of severe respiratory distress and indicates that the client is struggling to maintain adequate ventilation. This is a hallmark of status asthmaticus, a life-threatening condition requiring immediate intervention. D. Presence of coarse crackles: Coarse crackles are more commonly associated with fluid in the lungs, such as in pneumonia or heart failure. In status asthmaticus, breath sounds may be diminished or absent due to severe airway obstruction, rather than producing crackles.