Oxygen Delivery Devices- Exam Questions with Correct Answers
(Grade A+)
Question 1: indx for oxygen
Answer: - documented hypoxemia - acute care with suspected hypoxemia (CHF / cor pulmonale) - severe
trauma / severe blood loss - acute myocardial infarction - short-term therapy - surgical intervention - post
anesthesia recovery
Question 2: How is hypoxemia confirmed?
Answer: through an ABG
Question 3: hypoxemia
Answer: - PaO2 < 60 mmHg - SaO2 < 90% on room air (21% FiO2)
Question 4: contraindx for certain delivery devices for oxygen
Answer: nasal cannulas and nasopharyngeal catheters in pediatric and neonatal patients with obstruction
Question 5: low flow oxygen devices
Answer: nasal catheter nasal cannula simple mask non-rebreathing mask trans-tracheal catheter
Question 6: nasal cannula flow rate
Answer: 0-6 Lpm
Question 7: When must a nasal cannula be humified?
Answer: flow rate of above 4 Lpm
Question 8: contraindx for nasal catheter
Answer: nasal septum deviation mucosal congestion nasal polyps
Question 9: Why is delivery of PaO2 ≥ 60 mmHg a hazard for COPD patients?
Answer: ventilatory depression may occur in spontaneously breathing patients with elevated PaCO2
Question 10: Hazards with FiO2 > 0.5
Page 1
, Answer: absorption atelectasis O2 toxicity depression of ciliary or leukocyte function
Question 11: What does delivery of PaO2 > 80 mmHg do to premature infants?
Answer: May contribute to retinopathy of prematurity
Question 12: Why should a therapist be concerned with infants with certain congenital heart lesions
when delivering oxygen?
Answer: High PaO2 can compromise the balance between pulmonary and systemic blood flow such as
hypoplastic left syndrome
Question 13: hazard with oxygen delivery to infants directed at the face
Answer: stimulate an alteration in respiratory pattern
Question 14: hazard with increased FiO2 to patients with paraquat poisoning or receiving bleomycin
Answer: worsen lung injury (if they have any)
Question 15: How is intratracheal ignition prevented when delivering oxygen during laser
bronchoscopy or tracheostomy?
Answer: deliver minimal FiO2
Question 16: What could happen when delivering oxygen and nebulizers and humidifiers are used?
Answer: hazard of bacterial contamination
Question 17: increase fire hazard
Answer: in the presence of high FiO2
Question 18: What's the difference between a Venturi mask and a Venti mask?
Answer: There is no difference, you silly goose you.
Question 19: What is the relationship between oxygen and FiO2?
Answer: Higher oxygen = Increased FiO2; Lower oxygen = Decreased FiO2.
Question 20: assessment of need of oxygen delivery
Page 2
(Grade A+)
Question 1: indx for oxygen
Answer: - documented hypoxemia - acute care with suspected hypoxemia (CHF / cor pulmonale) - severe
trauma / severe blood loss - acute myocardial infarction - short-term therapy - surgical intervention - post
anesthesia recovery
Question 2: How is hypoxemia confirmed?
Answer: through an ABG
Question 3: hypoxemia
Answer: - PaO2 < 60 mmHg - SaO2 < 90% on room air (21% FiO2)
Question 4: contraindx for certain delivery devices for oxygen
Answer: nasal cannulas and nasopharyngeal catheters in pediatric and neonatal patients with obstruction
Question 5: low flow oxygen devices
Answer: nasal catheter nasal cannula simple mask non-rebreathing mask trans-tracheal catheter
Question 6: nasal cannula flow rate
Answer: 0-6 Lpm
Question 7: When must a nasal cannula be humified?
Answer: flow rate of above 4 Lpm
Question 8: contraindx for nasal catheter
Answer: nasal septum deviation mucosal congestion nasal polyps
Question 9: Why is delivery of PaO2 ≥ 60 mmHg a hazard for COPD patients?
Answer: ventilatory depression may occur in spontaneously breathing patients with elevated PaCO2
Question 10: Hazards with FiO2 > 0.5
Page 1
, Answer: absorption atelectasis O2 toxicity depression of ciliary or leukocyte function
Question 11: What does delivery of PaO2 > 80 mmHg do to premature infants?
Answer: May contribute to retinopathy of prematurity
Question 12: Why should a therapist be concerned with infants with certain congenital heart lesions
when delivering oxygen?
Answer: High PaO2 can compromise the balance between pulmonary and systemic blood flow such as
hypoplastic left syndrome
Question 13: hazard with oxygen delivery to infants directed at the face
Answer: stimulate an alteration in respiratory pattern
Question 14: hazard with increased FiO2 to patients with paraquat poisoning or receiving bleomycin
Answer: worsen lung injury (if they have any)
Question 15: How is intratracheal ignition prevented when delivering oxygen during laser
bronchoscopy or tracheostomy?
Answer: deliver minimal FiO2
Question 16: What could happen when delivering oxygen and nebulizers and humidifiers are used?
Answer: hazard of bacterial contamination
Question 17: increase fire hazard
Answer: in the presence of high FiO2
Question 18: What's the difference between a Venturi mask and a Venti mask?
Answer: There is no difference, you silly goose you.
Question 19: What is the relationship between oxygen and FiO2?
Answer: Higher oxygen = Increased FiO2; Lower oxygen = Decreased FiO2.
Question 20: assessment of need of oxygen delivery
Page 2
