What definition best describes the concept of afterload?
A) Pressure that the left ventricle must pump blood against to open the aortic valve
B) Ability of the heart to adequately contract and pump blood out of the pulmonic valve
C) Amount of blood that a person has in the arteries at any given moment
D) Amount of blood returned to the lungs for oxygenation by the right ventricle
A) Pressure that the left ventricle must pump blood against to open the aortic valve
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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.
The radiographer's attitude toward his or her own technical ability will also be conveyed to the patient
Indicate whether the statement is true or false