HEALTHSTREAM ICU KNOWLEDGE
PRACTICE SOLUTION TEST 2026
QUESTIONS AND ANSWERS GRADED A+
●● How much does the oxygen concentration increase with each
additional liter per minute of supplemental oxygen?.
Answer: Approximately 4% increase
●● What is the oxygen concentration at 1 liter per minute of
supplemental oxygen?.
Answer: 24% O2
●● What color is the flowmeter for oxygen?.
Answer: Green
●● What is the purpose of a High Flow Nasal Cannula (HFNC)?.
Answer: For O2 needs greater than 6 lpm
●● What should not be used with HFNC to avoid pressure backup?.
Answer: Extension tubing
●● What is the flow rate and FiO2 range for a Simple Mask?.
, Answer: 5-8 lpm, FiO2 = 0.35 - 0.55
●● What is the function of a Venturi Mask?.
Answer: Provides more specific FiO2 by mixing room air and O2
●● What is the flow rate for a Non-Rebreather (NRB) Mask?.
Answer: 15 lpm
●● What FiO2 can a Non-Rebreather (NRB) Mask deliver?.
Answer: 94-96% O2
●● What is the function of the one-way valve in a Non-Rebreather
Mask?.
Answer: Prevents re-breathing CO2
●● What does BiPAP stand for?.
Answer: Bi-level Positive Air Pressure
●● What are the two pressure settings for BiPAP?.
Answer: One for inspiration and a lower level for expiration
●● What is the purpose of Airvo High Flow Therapy?.
PRACTICE SOLUTION TEST 2026
QUESTIONS AND ANSWERS GRADED A+
●● How much does the oxygen concentration increase with each
additional liter per minute of supplemental oxygen?.
Answer: Approximately 4% increase
●● What is the oxygen concentration at 1 liter per minute of
supplemental oxygen?.
Answer: 24% O2
●● What color is the flowmeter for oxygen?.
Answer: Green
●● What is the purpose of a High Flow Nasal Cannula (HFNC)?.
Answer: For O2 needs greater than 6 lpm
●● What should not be used with HFNC to avoid pressure backup?.
Answer: Extension tubing
●● What is the flow rate and FiO2 range for a Simple Mask?.
, Answer: 5-8 lpm, FiO2 = 0.35 - 0.55
●● What is the function of a Venturi Mask?.
Answer: Provides more specific FiO2 by mixing room air and O2
●● What is the flow rate for a Non-Rebreather (NRB) Mask?.
Answer: 15 lpm
●● What FiO2 can a Non-Rebreather (NRB) Mask deliver?.
Answer: 94-96% O2
●● What is the function of the one-way valve in a Non-Rebreather
Mask?.
Answer: Prevents re-breathing CO2
●● What does BiPAP stand for?.
Answer: Bi-level Positive Air Pressure
●● What are the two pressure settings for BiPAP?.
Answer: One for inspiration and a lower level for expiration
●● What is the purpose of Airvo High Flow Therapy?.
