Egans Medical Gas Therapy Exam | Verified Exam Questions and Answers | Latest Updated Study Material 2026

Egans Medical Gas Therapy Exam | Verified Exam Questions and
Answers | Latest Updated Study Material 2026

Question:

Egans Medical Gas Therapy Exam |
Properly applied O2 therapy can decrease:
Answer:

Ventilatory demand,
work of breathing, and cardiac output

Question:

Benefits of properly applied O2 therapy in patients with chronic hypoxemia include:
Answer:

Reversal of pulmonary vasoconstriction, relief of pulmonary
hypertension, and decreased right ventricular workload

Question:

You start a chronic obstructive pulmonary disease (COPD) patient on a nasal O2 cannula at 2
L/min. What is the maximum time that should pass before assessing this patient's PaO2 or SaO2?
Answer:

2 hr

Question:

According to AARC clinical practice guidelines, what is the minimum frequency for checking
the functioning of an O2 delivery system?
Answer:

Every 24 hr

Question:

You set up an Oxy-Hood with an FiO2 of 0.5 for a newborn infant. What is the maximum time
that should pass before assessing this patient's PaO2 or SaO2?
Answer:

1
hr

,Question:

When determining a need for O2 therapy, the respiratory therapist should assess what?
Answer:

Neurological, respiratory, and cardiac status

Question:

What is/are the primary organ system(s) affected by O2 toxicity?
Answer:

central nervous system and lungs

Question:

Which of the following typically occurs first when monitoring the earliest physiologic response
to breathing 100% O2?
Answer:

Substernal chest pain

Question:

Which of the following is consistent with the radiographic appearance after prolonged exposure
to O2?
Answer:

Patchy infiltrates

Question:

A physician places a patient in respiratory failure on 100% O2. To avoid the hazards of O2
toxicity, you would recommend that every effort is made to reduce this FiO2 to less than 50%
within what timeframe?
Answer:

5 days

Question:

A patient with chronic hypercapnia placed on an FiO2 of 0.6 starts hypoventilating. What is a
possible cause of this phenomenon?
Answer:

O2-induced hypoventilation

, Question:

Retinopathy of prematurity (ROP) is a potentially serious management problem mainly in the
care of whom?
Answer:

Premature or low-birth-weight infants

Question:

Some strategies for minimizing the risk of fire hazard with O2 therapy include which of the
following?
Answer:

Using the lowest effective FiO2, properly educating
patients and caregivers, and avoiding aluminum regulators and other high-risk devices

Question:

To minimize the risk of retinopathy of prematurity (ROP), the American Academy of Pediatrics
recommends keeping the PaO2 below what level?
Answer:

80 mm Hg

Question:

To ensure a stable FiO2 under varying patient demands, what must an O2 delivery system do?
Answer:

It must provide all the gas needed by the patient during
inspiration.

Question:

Delivery systems that provide only a portion of a patient's inspired gas are referred to as what?
Answer:

Variable-performance systems

Question:

A cooperative and alert postoperative patient who is able to eat requires a continuous but low
FiO2. Precise FiO2 concentrations are not needed. Which of the following devices would best
achieve this end?
Answer:

Nasal cannula