Emergency Medical Technician (EMT) Basic Certification Practice Exam

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What is a potential indication of worsening status in asthma patients?

Decreased respiratory rate
Pulsus paradoxus
JVD
Nonproductive cough

The correct answer is: Pulsus paradoxus

In asthma patients, worsening status can be indicated by the presence of pulsus paradoxus. This phenomenon refers to an exaggerated decrease in systolic blood pressure during inspiration, which can occur in severe asthma exacerbations due to increased airway resistance and decreased lung volumes. As the severity of bronchospasm increases, it can lead to greater fluctuations in cardiovascular parameters, thus making pulsus paradoxus a critical sign to monitor. Recognizing pulsus paradoxus is essential because it suggests that the respiratory distress is becoming significant enough to impact hemodynamics, indicating a potential need for urgent intervention. By identifying this symptom, healthcare providers can assess the severity of the asthma attack and initiate appropriate treatment measures.