#1
Which of the following is a common indication for oxygen therapy?
Hypoxemia
ExplanationLow oxygen levels in the blood.
#2
What is the recommended oxygen delivery device for patients requiring low-flow oxygen therapy?
Nasal cannula
ExplanationSimple and comfortable device for delivering low levels of oxygen.
#3
What is the purpose of using a pulse oximeter in oxygen therapy?
To assess oxygen saturation
ExplanationMonitor oxygen levels in blood non-invasively.
#4
Which of the following is a potential risk associated with high-flow oxygen therapy?
Mucosal drying
ExplanationHigh flow rates can dry out mucous membranes.
#5
What is the standard unit of measurement for oxygen flow rate in oxygen therapy?
Liters per minute (L/min)
ExplanationMeasurement of oxygen delivery rate.
#6
Which of the following is NOT a potential complication of oxygen therapy?
Hypoxemia
ExplanationHypoxemia is the condition oxygen therapy aims to treat.
#7
What is the target range for arterial oxygen saturation (SaO2) in patients receiving oxygen therapy?
90-95%
ExplanationOptimal range for oxygen saturation in the blood.
#8
Which of the following oxygen delivery devices provides the highest FiO2 (Fraction of Inspired Oxygen)?
Non-rebreather mask
ExplanationPrevents rebreathing of exhaled gases, delivering highest FiO2.
#9
What is the primary goal of oxygen therapy in patients with chronic obstructive pulmonary disease (COPD)?
To normalize arterial blood gases
ExplanationImproving oxygen levels in blood while removing excess carbon dioxide.
#10
Which condition is typically treated with hyperbaric oxygen therapy (HBOT)?
Decompression sickness
ExplanationForcing nitrogen bubbles out of tissues.
#11
Which of the following conditions is NOT an absolute contraindication for hyperbaric oxygen therapy (HBOT)?
Claustrophobia
ExplanationPsychological condition rather than a physiological contraindication.
#12
Which of the following is NOT a potential complication of long-term oxygen therapy (LTOT)?
Progressive hypoxemia
ExplanationLTOT is meant to prevent worsening of hypoxemia.
#13
What is the mechanism of action of hyperbaric oxygen therapy (HBOT) in the treatment of carbon monoxide poisoning?
It displaces carbon monoxide from hemoglobin
ExplanationForcing out carbon monoxide to restore oxygen-carrying capacity of blood.
#14
Which of the following conditions may require titration of oxygen therapy based on arterial blood gas measurements?
Pulmonary embolism
ExplanationAdjusting oxygen levels to maintain adequate oxygenation in the presence of compromised blood flow to lungs.
#15
Which of the following is a complication associated with oxygen therapy in premature infants?
Retinopathy of prematurity
ExplanationOxygen toxicity leading to damage in developing retina.