All metered dose inhalers (MDIs) are powered by which propellant?

The main role of bone marrow is to filter the blood.?

Indicate whether the statement is true or false

A 77-year-old male got out of bed, became dizzy, and fell onto the floor, hitting the right side of his face. You find the patient sitting on the floor with his wife next to him. His wife states that he did not lose consciousness and that this has happened several times over the past few days, ever since the doctor put him on a new blood pressure medication. Presently, the patient is alert and oriented and complains of dizziness, headache, and neck pain. He has a history of coronary artery disease, emphysema, and hypertension. Which action should the EMT perform first?

A) Provide supplemental oxygen to maintain SpO2 of 95% or greater B) Take manual spine motion restriction precautions and begin the primary assessment C) Position the patient supine with his feet elevated and obtain vital signs D) Summon ALS and initiate transport to a stroke center