A medical assistant is instructing a patient on using a peak flow meter at home to monitor their asthma. The assistant should explain that the primary purpose of this device is to measure which of the following?
Respiratory muscle strength
Blood oxygen saturation
Total lung capacity
Maximum speed of expiration
Peak expiratory flow rate (PEFR), measured by a peak flow meter, is the maximum speed at which a person can exhale air from their lungs. This measurement is crucial for monitoring conditions that cause airway obstruction, like asthma. Total lung capacity is a measure of the total volume of air the lungs can hold and is assessed with more complex pulmonary function tests like spirometry. Blood oxygen saturation is measured with a pulse oximeter. While respiratory muscle strength influences PEFR, the device's direct measurement is of airflow speed, not isolated muscle strength.
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
All Nursing and Medical Assistants Package plans include the following perks and exams .
Our pricing is simple. Full access to all certifications and exams in each package, for one price.
As many practice tests for as many topics as you want.
Use study mode non-stop, no limits.
Access to our AI assistant, Bash, trained to help you pass your exam.
Track your scores over time in study mode and report cards.
See how you improve over time, and where you need to focus.
All Nursing and Medical Assistants Package plans include unlimited access to the following study materials.
Create an account or sign in to access our study materials.