Which symptom may indicate a failure to improve with treatment?

In the context of evaluating the effectiveness of treatment, increased blood pressure can be a significant indicator of a patient's failure to improve. When a patient's blood pressure rises despite being under treatment, it suggests that their body is not responding favorably to the interventions being made. This could indicate ongoing stress on the cardiovascular system, potential underlying issues, or a lack of effectiveness of the current treatment plan.

In contrast, decreased respiratory rate and the elimination of dyspnea generally signal improvement in a patient's respiratory condition, as they indicate better breathing and overall respiratory function. Stabilized blood pressure might suggest that a patient's condition is stable but does not directly indicate improvement or deterioration. Therefore, increased blood pressure stands out as a potential warning sign that treatment may not be working as intended.