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Oxygen
40問 • 1年前
  • ユーザ名非公開
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    問題一覧

  • 1

    Which of the following statements about oxygen as a drug/medication is correct

    Oxygen must be prescribed by a physician, given at the minimum dose to achieve the desired effect, and should never be completely removed from a patient for the purpose of taking a radiograph.

  • 2

    Which of the following accurately describes the makeup of oxygen

    Oxygen makes up 21% of the air we breathe, the fraction of inspired oxygen (FiO₂) represents the percentage of oxygen in the measured space, and it is also known as the Carrico index.

  • 3

    Which of the following statements about oxygen administration is correct?

    An adequate oxygen supply is essential to life, brain function ceases after 4 to 5 minutes without oxygen, and it is your responsibility to ensure the room has a full supply of oxygen and delivery methods.

  • 4

    What is the primary goal of oxygen therapy?

    To maintain adequate tissue oxygenation while minimizing cardiopulmonary work, with the lungs supplying oxygen and removing carbon dioxide from the body.

  • 5

    Which of the following statements accurately describes hypoxemia and its related processes?

    Hypoxemia refers to inadequate oxygen levels in arterial blood to meet physiological needs, with oxygen and carbon dioxide carried to and from body systems in the blood, and small amounts of oxygen chemically bound to hemoglobin.

  • 6

    Which of the following statements accurately describes the oxygen capacity of blood?

    21% of oxygen is required to maintain homeostasis, the amount of oxygen in blood or air is expressed as a percentage of the volume or as oxygen tension/partial pressure written as PO₂, and carbon dioxide is written as PCO₂.

  • 7

    Which of the following statements accurately describes the functions of carbon dioxide in the body?

    Carbon dioxide enters red blood cells, diffuses into the plasma of systemic capillary blood, and is removed from the body with the help of hemoglobin.

  • 8

    How does an excessive buildup of carbon dioxide (CO₂) in the blood affect the body, and what mechanism helps prevent acidity?

    Excessive CO₂ increases blood acidity or alkalinity by changing the pH, and bicarbonate (HCO₃) helps prevent acidity.

  • 9

    Which of the following best describes pulmonary function and how it is measured?

    Pulmonary function refers to the lung’s ability to exchange oxygen and carbon dioxide efficiently, and it is measured by arterial blood gases, including concentrations of O₂, CO₂, HCO₃, acidity, and SaO₂.

  • 10

    Which of the following statements accurately describes conditions related to inadequate oxygenation?

    Hypoxemia is defined as an inadequate level of oxygen in the arterial blood to meet physiological needs; Hypercapnea occurs when carbon dioxide remains in the arterial blood; Inadequate oxygenation of the blood is when PaO₂ is below 60 mmHg, and hemoglobin saturation is less than 90%.

  • 11

    Which of the following statements about pulse oximetry is correct?

    ⚫️Pulse oximetry monitors oxygen saturation in hemoglobin, is a fast, noninvasive method, with normal SaO₂ values ranging from 95-100%, ⚫️while values less than 85% indicate tissues are not receiving adequate oxygen.

  • 12

    How does a pulse oximeter function and where can the light-emitting probe be placed?

    The pulse oximeter measures oxygen and pulse rate by converting light intensity data, and the probe can be placed on the finger, toe, earlobe, temple, nose, or forehead.

  • 13

    What are the key considerations for oxygen delivery to the respiratory tract?

    Oxygen is delivered under pressure and is humidified by passing through distilled water to prevent drying of the respiratory membrane.

  • 14

    How is oxygen delivered, and what are the differences between complex and simpler systems?

    -Oxygen delivery is measured in liters per minute. -Complex systems provide a controlled amount of premixed room air and oxygen, -simpler systems deliver a prescribed amount mixed with room air, with concentration varying based on the rate of respiration.

  • 15

    How is oxygen delivered to patient rooms and regulated

    Oxygen is piped into rooms, recovery areas, and radiology through a wall unit, supplied from a central source at 60-80 pounds per square inch, and regulated by a flow meter attached to each wall outlet.

  • 16

    What are the characteristics and functions of portable oxygen tanks?

    Portable oxygen tanks are compressed to 2000 lbs/in² and have two regulatory valves: one controls pressure and indicates the oxygen level and the other measures the rate of oxygen flow.

  • 17

    Question: Which of the following oxygen delivery systems is considered a low flow system? A) Nasal cannula B) Nasal catheter C) Face mask D) All of the above

    All of the above

  • 18

    Question: Which of the following oxygen delivery systems is considered a high flow system? A) Venturi mask B) Nonrebreathing face mask C) Tent and oxyhood D) All of the above

    D

  • 19

    **Question: Which of the following is true about the nasal cannula?** A) It is the most commonly used oxygen delivery device. B) It features an angulated, flexible lip plate with beveled tips for increased comfort. C) It allows freedom of movement and talking but is more expensive due to oxygen loss to the air. D) All of the above.

    All of the above.

  • 20

    Question: Which of the following statements about nasal cannulas is correct? A) Nasal cannulas deliver low concentrations of oxygen, ranging from 21% to 60%. B) They are used when breathing range and depth are normal and even. C) Oxygen flow rates are typically 1–4 L/min for adults and 1/4–1/2 L/min for children. D) Oxygen should be turned on first, and flow rates above 6 L/min can dry out the nose and cause sinus pain. E) All of the above.

    All of the above.

  • 21

    Question: Which of the following statements about nasal catheters is correct? A) Nasal catheters are commonly used for oxygen delivery. B) They provide low flow oxygen delivery. C) They deliver moderate to high concentrations of oxygen. D) Both B and C.

    B and C

  • 22

    **Question: Which of the following is true about nasal catheters?** A) The catheter is passed into one nostril until it reaches the oral pharynx, with the other end attached to a wall unit. B) Oxygen is delivered at a flow rate of 1 to 5 LPM. C) Hazards include oxygen being misdirected into the stomach, causing distention, and causing a sore throat. D) All of the above.

    All of the above.

  • 23

    Question: Which of the following is true about simple face masks? A) Low-flow device for short-term use. B) Requires >5 LPM to prevent CO₂ buildup. C) Delivers 30–50% O₂, uncomfortable, and increases aspiration risk. D) All of the above.

    All of the above.

  • 24

    Question: Which of the following is true about nonrebreathing masks? A) High-flow oxygen system. B) One-way valve prevents rebreathing. C) Delivers 100% oxygen with a reservoir bag. D) Bag must stay inflated. E) All of the above.

    All of the above.

  • 25

    Question: Which of the following is true about partial rebreathing masks? A) High-flow system without a valve. B) Delivers 60–90% oxygen at 6–10 L/min. C) Patient breathes a mix of O₂ and CO₂. D) All of the above.

    All of the above.

  • 26

    Question: Which of the following is true about Venturi masks? A) AKA air-entrainment mask. B) High-flow, controlled O₂ therapy. C) Delivers 24–50% O₂ at 4–8 L/min. D) Allows precise O₂ adjustment. E) All of the above.

    All of the above.

  • 27

    **Question: Which of the following is true about aerosol masks?** A) Provides O₂ and humidity. B) Connected to water via tubing. C) Delivers 60–80% O₂. D) All of the above.

    All of the above.

  • 28

    Question: Which is true about transtracheal systems? A) Continuous O₂ therapy. B) Catheter in trachea. C) Connected to portable tank. D) All of the above.

    All of the above.

  • 29

    **Question: Which is true about ventilators?** A) High-flow for tracheostomy. B) Delivers controlled rate, volume, and O₂. C) Requires proper head position and chest checks. D) Alarms on repositioning. E) All of the above.

    All of the above.

  • 30

    Question: Which is true about oxygen tents and hoods? A) Provide humidity and high O₂ concentration. B) Common in neonatal and pediatric care. C) Fire hazard; may turn off for X-rays. D) All of the above.

    All of the above.

  • 31

    Question: What is true about oxyhoods? A) Used for very small babies. B) Fits over the infant’s head. C) Provides oxygen therapy. D) All of the above.

    All of the above.

  • 32

    Question: What are the hazards associated with oxygen tents and hoods? A) Risk of fire. B) No smoking allowed. C) Avoid equipment that generates sparks. D) All of the above.

    All of the above

  • 33

    Question: Which is true about home oxygen delivery systems? A) Compressed gas uses small tanks. B) Liquid oxygen is expensive and evaporates. C) Oxygen concentrators are economical and remove nitrogen from room air. D) All of the above.

    All the above

  • 34

    **Question: What is needed for oxygen delivery in imaging?** A) Oxygen source and nasal cannula. B) Tubes, adapters, and humidifier. C) Flow meter and no smoking sign. D) All of the above.

    All of the above.

  • 35

    Question: What are the hazards of oxygen administration? A) Excess O₂ depresses respiratory drive in COPD. B) High O₂ flow can cause toxicity. C) Excess O₂ may cause apnea. D) All of the above.

    D

  • 36

    Question: What are hazards of oxygen administration? A) Bacteria thrive in oxygenated environments. B) Equipment must be replaced after each use. C) May lead to ventilator-associated pneumonia. D) All of the above.

    D

  • 37

    Question: What is true about pneumothorax? A) Air leaks into lung space. B) Causes pain and SOB. C) May collapse one or both lungs. D) All of the above.

    D

  • 38

    Question: What is a hazard of oxygen administration related to lung damage? A) Pushing air into lungs with too much pressure. B) Lack of air pressure control. C) Insufficient oxygen supply. D) None of the above.

    A

  • 39

    Question: What is true about oxygen toxicity? A) High oxygen levels can damage the lungs. B) Can lead to irreversible damage. C) Causes respiratory, visual, and central nervous system symptoms. D) All of the above.

    D

  • 40

    Question: What is a key hazard of oxygen administration? A) Smoking is prohibited near oxygen. B) Patients should avoid being around oxygen. C) Smoking is allowed in designated areas. D) None of the above

    A

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    問題一覧

  • 1

    Which of the following statements about oxygen as a drug/medication is correct

    Oxygen must be prescribed by a physician, given at the minimum dose to achieve the desired effect, and should never be completely removed from a patient for the purpose of taking a radiograph.

  • 2

    Which of the following accurately describes the makeup of oxygen

    Oxygen makes up 21% of the air we breathe, the fraction of inspired oxygen (FiO₂) represents the percentage of oxygen in the measured space, and it is also known as the Carrico index.

  • 3

    Which of the following statements about oxygen administration is correct?

    An adequate oxygen supply is essential to life, brain function ceases after 4 to 5 minutes without oxygen, and it is your responsibility to ensure the room has a full supply of oxygen and delivery methods.

  • 4

    What is the primary goal of oxygen therapy?

    To maintain adequate tissue oxygenation while minimizing cardiopulmonary work, with the lungs supplying oxygen and removing carbon dioxide from the body.

  • 5

    Which of the following statements accurately describes hypoxemia and its related processes?

    Hypoxemia refers to inadequate oxygen levels in arterial blood to meet physiological needs, with oxygen and carbon dioxide carried to and from body systems in the blood, and small amounts of oxygen chemically bound to hemoglobin.

  • 6

    Which of the following statements accurately describes the oxygen capacity of blood?

    21% of oxygen is required to maintain homeostasis, the amount of oxygen in blood or air is expressed as a percentage of the volume or as oxygen tension/partial pressure written as PO₂, and carbon dioxide is written as PCO₂.

  • 7

    Which of the following statements accurately describes the functions of carbon dioxide in the body?

    Carbon dioxide enters red blood cells, diffuses into the plasma of systemic capillary blood, and is removed from the body with the help of hemoglobin.

  • 8

    How does an excessive buildup of carbon dioxide (CO₂) in the blood affect the body, and what mechanism helps prevent acidity?

    Excessive CO₂ increases blood acidity or alkalinity by changing the pH, and bicarbonate (HCO₃) helps prevent acidity.

  • 9

    Which of the following best describes pulmonary function and how it is measured?

    Pulmonary function refers to the lung’s ability to exchange oxygen and carbon dioxide efficiently, and it is measured by arterial blood gases, including concentrations of O₂, CO₂, HCO₃, acidity, and SaO₂.

  • 10

    Which of the following statements accurately describes conditions related to inadequate oxygenation?

    Hypoxemia is defined as an inadequate level of oxygen in the arterial blood to meet physiological needs; Hypercapnea occurs when carbon dioxide remains in the arterial blood; Inadequate oxygenation of the blood is when PaO₂ is below 60 mmHg, and hemoglobin saturation is less than 90%.

  • 11

    Which of the following statements about pulse oximetry is correct?

    ⚫️Pulse oximetry monitors oxygen saturation in hemoglobin, is a fast, noninvasive method, with normal SaO₂ values ranging from 95-100%, ⚫️while values less than 85% indicate tissues are not receiving adequate oxygen.

  • 12

    How does a pulse oximeter function and where can the light-emitting probe be placed?

    The pulse oximeter measures oxygen and pulse rate by converting light intensity data, and the probe can be placed on the finger, toe, earlobe, temple, nose, or forehead.

  • 13

    What are the key considerations for oxygen delivery to the respiratory tract?

    Oxygen is delivered under pressure and is humidified by passing through distilled water to prevent drying of the respiratory membrane.

  • 14

    How is oxygen delivered, and what are the differences between complex and simpler systems?

    -Oxygen delivery is measured in liters per minute. -Complex systems provide a controlled amount of premixed room air and oxygen, -simpler systems deliver a prescribed amount mixed with room air, with concentration varying based on the rate of respiration.

  • 15

    How is oxygen delivered to patient rooms and regulated

    Oxygen is piped into rooms, recovery areas, and radiology through a wall unit, supplied from a central source at 60-80 pounds per square inch, and regulated by a flow meter attached to each wall outlet.

  • 16

    What are the characteristics and functions of portable oxygen tanks?

    Portable oxygen tanks are compressed to 2000 lbs/in² and have two regulatory valves: one controls pressure and indicates the oxygen level and the other measures the rate of oxygen flow.

  • 17

    Question: Which of the following oxygen delivery systems is considered a low flow system? A) Nasal cannula B) Nasal catheter C) Face mask D) All of the above

    All of the above

  • 18

    Question: Which of the following oxygen delivery systems is considered a high flow system? A) Venturi mask B) Nonrebreathing face mask C) Tent and oxyhood D) All of the above

    D

  • 19

    **Question: Which of the following is true about the nasal cannula?** A) It is the most commonly used oxygen delivery device. B) It features an angulated, flexible lip plate with beveled tips for increased comfort. C) It allows freedom of movement and talking but is more expensive due to oxygen loss to the air. D) All of the above.

    All of the above.

  • 20

    Question: Which of the following statements about nasal cannulas is correct? A) Nasal cannulas deliver low concentrations of oxygen, ranging from 21% to 60%. B) They are used when breathing range and depth are normal and even. C) Oxygen flow rates are typically 1–4 L/min for adults and 1/4–1/2 L/min for children. D) Oxygen should be turned on first, and flow rates above 6 L/min can dry out the nose and cause sinus pain. E) All of the above.

    All of the above.

  • 21

    Question: Which of the following statements about nasal catheters is correct? A) Nasal catheters are commonly used for oxygen delivery. B) They provide low flow oxygen delivery. C) They deliver moderate to high concentrations of oxygen. D) Both B and C.

    B and C

  • 22

    **Question: Which of the following is true about nasal catheters?** A) The catheter is passed into one nostril until it reaches the oral pharynx, with the other end attached to a wall unit. B) Oxygen is delivered at a flow rate of 1 to 5 LPM. C) Hazards include oxygen being misdirected into the stomach, causing distention, and causing a sore throat. D) All of the above.

    All of the above.

  • 23

    Question: Which of the following is true about simple face masks? A) Low-flow device for short-term use. B) Requires >5 LPM to prevent CO₂ buildup. C) Delivers 30–50% O₂, uncomfortable, and increases aspiration risk. D) All of the above.

    All of the above.

  • 24

    Question: Which of the following is true about nonrebreathing masks? A) High-flow oxygen system. B) One-way valve prevents rebreathing. C) Delivers 100% oxygen with a reservoir bag. D) Bag must stay inflated. E) All of the above.

    All of the above.

  • 25

    Question: Which of the following is true about partial rebreathing masks? A) High-flow system without a valve. B) Delivers 60–90% oxygen at 6–10 L/min. C) Patient breathes a mix of O₂ and CO₂. D) All of the above.

    All of the above.

  • 26

    Question: Which of the following is true about Venturi masks? A) AKA air-entrainment mask. B) High-flow, controlled O₂ therapy. C) Delivers 24–50% O₂ at 4–8 L/min. D) Allows precise O₂ adjustment. E) All of the above.

    All of the above.

  • 27

    **Question: Which of the following is true about aerosol masks?** A) Provides O₂ and humidity. B) Connected to water via tubing. C) Delivers 60–80% O₂. D) All of the above.

    All of the above.

  • 28

    Question: Which is true about transtracheal systems? A) Continuous O₂ therapy. B) Catheter in trachea. C) Connected to portable tank. D) All of the above.

    All of the above.

  • 29

    **Question: Which is true about ventilators?** A) High-flow for tracheostomy. B) Delivers controlled rate, volume, and O₂. C) Requires proper head position and chest checks. D) Alarms on repositioning. E) All of the above.

    All of the above.

  • 30

    Question: Which is true about oxygen tents and hoods? A) Provide humidity and high O₂ concentration. B) Common in neonatal and pediatric care. C) Fire hazard; may turn off for X-rays. D) All of the above.

    All of the above.

  • 31

    Question: What is true about oxyhoods? A) Used for very small babies. B) Fits over the infant’s head. C) Provides oxygen therapy. D) All of the above.

    All of the above.

  • 32

    Question: What are the hazards associated with oxygen tents and hoods? A) Risk of fire. B) No smoking allowed. C) Avoid equipment that generates sparks. D) All of the above.

    All of the above

  • 33

    Question: Which is true about home oxygen delivery systems? A) Compressed gas uses small tanks. B) Liquid oxygen is expensive and evaporates. C) Oxygen concentrators are economical and remove nitrogen from room air. D) All of the above.

    All the above

  • 34

    **Question: What is needed for oxygen delivery in imaging?** A) Oxygen source and nasal cannula. B) Tubes, adapters, and humidifier. C) Flow meter and no smoking sign. D) All of the above.

    All of the above.

  • 35

    Question: What are the hazards of oxygen administration? A) Excess O₂ depresses respiratory drive in COPD. B) High O₂ flow can cause toxicity. C) Excess O₂ may cause apnea. D) All of the above.

    D

  • 36

    Question: What are hazards of oxygen administration? A) Bacteria thrive in oxygenated environments. B) Equipment must be replaced after each use. C) May lead to ventilator-associated pneumonia. D) All of the above.

    D

  • 37

    Question: What is true about pneumothorax? A) Air leaks into lung space. B) Causes pain and SOB. C) May collapse one or both lungs. D) All of the above.

    D

  • 38

    Question: What is a hazard of oxygen administration related to lung damage? A) Pushing air into lungs with too much pressure. B) Lack of air pressure control. C) Insufficient oxygen supply. D) None of the above.

    A

  • 39

    Question: What is true about oxygen toxicity? A) High oxygen levels can damage the lungs. B) Can lead to irreversible damage. C) Causes respiratory, visual, and central nervous system symptoms. D) All of the above.

    D

  • 40

    Question: What is a key hazard of oxygen administration? A) Smoking is prohibited near oxygen. B) Patients should avoid being around oxygen. C) Smoking is allowed in designated areas. D) None of the above

    A