The Nurse Is Teaching the Patient Recently Diagnosed with Asthma

The nurse is teaching the patient recently diagnosed with asthma the correct use of the peak flow meter. In which order does the nurse instruct the patient? (Enter the letter of each step in the proper sequence; use capital letters, and do not use punctuation or spaces. Example: ABCDEF)

A) Place the mouthpiece in my mouth.
B) Ensure the slide marker is at zero (or lowest marking on the scale) .
C) Stand up straight.
D) Take a deep breath.
E) Note/record the marking on the scale.
F) Blow a "fast hard blast."