When using a chamber-style adapter with a metered dose inhaler (MDI) to deliver a bronchodi-lator to a patient receiving mechanical ventilation, with what would you coordinate MDI firing?
a. Beginning of inspiration
b. Beginning of exhalation
c. End of inspiration
d. Middle of inspiration
Question 2
A patient on mechanical ventilation was given 4 puffs of albuterol 5 min ago through a metered dose inhaler (MDI) and holding chamber placed 18 in from the circuit's airway connector.
The patient continues to exhibit clinical signs of increased airway resistance but has demonstrated no apparent side effects from the drug. Which of the following would you recommend at this time?
a. Discontinue the albuterol and switch to a systemic bronchodilator.
b. Repeat administration until the desired response is achieved.
c. Remove the circuit-holding chamber and repeat MDI actuation.
d. Move the MDI closer to the patient's air-way and repeat use.
Multiple-dose drug administration: drug A and drug B are administered every 12 hours; drug B reaches
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