ATI RN
Nursing Fundamentals Oxygenation Questions Questions
Question 1 of 5
Which of the following is the first sign of dehydration?
Correct Answer: C
Rationale: Thirst is the earliest physiological sign of dehydration, signaling the body to replenish fluids.
Question 2 of 5
Which of the following factors will have the greatest influence on evaporation in a humidifier?
Correct Answer: D
Rationale: Temperature has the greatest influence on evaporation rate in a humidifier because it directly affects the kinetic energy of water molecules, increasing vaporization more than surface area, time, or pressure.
Question 3 of 5
Which of the following strategies would be best to switch a patient with a King LT airway to an ETT?
Correct Answer: D
Rationale: An airway exchange catheter with laryngoscopy is the safest and most effective method to transition from a King LT to an ETT, maintaining airway control.
Question 4 of 5
When listening to heart sounds 'Lub' represents closure of what valve(s)?
Correct Answer: B
Rationale: The 'Lub' (S1) sound is from the closure of the mitral and tricuspid valves at the start of systole.
Question 5 of 5
Your patient with newly diagnosed COPD is receiving a beta 2 agonist via SVN for the first time. Preassessment shows HR 75 bpm with post assessment HR elevated to 132 bpm. The RT should:
Correct Answer: C
Rationale: A significant HR increase (75 to 132 bpm) suggests a beta-2 agonist side effect (tachycardia), warranting termination and physician notification.