HEALTHSTREAM ICU KNOWLEDGE PRACTICE SOLUTION TEST 2026 QUESTIONS AND ANSWERS GRADED A+

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?.