Question 1

Aging affects oxygen needs in the following ways except
A)Respiratory muscles weaken
B)Lung tissue is less elastic
C)Coughing strength decreases
D)Body temperature increases

Accepted Answer

Aging does not typically result in an increase in body temperature, therefore the only answer choice that does not accurately describe the effects of aging on oxygen needs is D. Respiratory muscle weakness, decreased elasticity in lung tissue, and decreased coughing strength are all common changes that can result in increased oxygen needs in older adults.

Question 2

Alcohol use causes what effect on the brain?
A)Depression
B)Excitement
C)Pain and fever
D)Decreases aspiration risk

Accepted Answer

Alcohol use can cause depression because it alters the balance of chemicals in the brain, such as serotonin and dopamine, which are important for regulating mood.

Question 3

A productive cough produces
A)Sputum
B)Cyanosis
C)Chest pain
D)Shortness of breath

Accepted Answer

A productive cough means that mucus or sputum is being produced and expelled from the respiratory tract. Cyanosis, chest pain, and shortness of breath may occur with coughing, but they are not directly caused by a productive cough.

Question 4

You find a person leaning forward over a table.What should you do?
A)Tell the nurse.
B)Remind the person to sit straight.
C)Give oxygen.
D)Provide a postural support.

Accepted Answer

Leaning forward over a table can be a sign of distress, discomfort, or breathing difficulty. It is important to alert the nurse so that appropriate assessments and interventions can be provided.

Question 5

The earliest signs of hypoxia are
A)Cyanosis,dyspnea,and increased pulse rate
B)Sitting and leaning forward
C)Restlessness,dizziness,and disorientation
D)Fatigue and agitation

Accepted Answer

Restlessness, dizziness, and disorientation are early signs of hypoxia. Cyanosis, dyspnea, and increased pulse rate are more advanced signs that occur when hypoxia is severe. Sitting and leaning forward and fatigue and agitation are not specific signs of hypoxia.

Question 6

Oxygen needs increase with the following except
A)Exercise
B)Fever
C)Rest
D)Pain

Accepted Answer

Oxygen needs do not increase during periods of rest. In fact, during rest, oxygen consumption may decrease since metabolic demand is lower. Therefore, option C is the correct answer.

Question 7

The following are reported to the nurse except
A)Respirations that are quiet,effortless,and regular
B)Noisy respirations
C)The color,odor,and consistency of sputum
D)Changes in vital signs

Accepted Answer

Quiet, effortless, and regular respirations are normal and do not need to be reported to the nurse, unlike the other options which indicate potential issues.

Question 8

Oxygen and carbon dioxide are exchanged
A)In the upper airway
B)In lung tissue
C)At the alveoli
D)In the lower airway

Accepted Answer

Oxygen and carbon dioxide are exchanged at the microscopic air sacs called alveoli in the lungs. This is where the process of gas exchange takes place during respiration.

Question 9

Persons who are in cardiac arrest or respiratory arrest have
A)Apnea
B)Bradypnea
C)Biot's respirations
D)Hypoventilation

Accepted Answer

Apnea refers to the absence of breathing, which is a characteristic of both cardiac arrest and respiratory arrest. Bradypnea and Biot's respirations both involve abnormal breathing patterns, while hypoventilation refers to slow or shallow breathing but not necessarily a complete cessation of breathing.

Question 10

Which statement about hypoxia is incorrect?
A)The brain is very sensitive to inadequate oxygen.
B)Hypoxia threatens life.
C)Anything affecting respiratory function can cause hypoxia.
D)Hyperventilation is needed.

Accepted Answer

Hyperventilation actually decreases the amount of carbon dioxide in the blood, which can result in vasoconstriction and decreased blood flow to vital organs, worsening hypoxia. Therefore, hyperventilation is not needed in the management of hypoxia.

Question 11

Excessive amounts of alcohol intake
A)Cause pneumonia
B)Reduce the cough reflex
C)Decrease the risk of aspiration
D)Obstruct the airway

Accepted Answer

Excessive alcohol intake can reduce the cough reflex, which makes it harder to clear the airway of debris or mucus. This can increase the risk of aspiration, which can lead to lung infections such as pneumonia. Additionally, alcohol can also cause the muscles in the airway to relax, which can obstruct the airway and cause breathing difficulties. It does not decrease the risk of aspiration.

Question 12

To produce red blood cells,the body needs
A)Protein
B)Fats
C)Carbohydrates
D)Iron and vitamins

Accepted Answer

Red blood cells contain hemoglobin, which is a protein that carries oxygen. Hemoglobin requires iron to function properly, and vitamins such as vitamin B12 and folate are also important in the production of red blood cells. Fats and carbohydrates are important for energy production but are not specifically linked to the production of red blood cells.

Question 13

Brain damage can affect
A)Respiratory rate,rhythm,and depth
B)Bone marrow function
C)Allergies and pollutant exposure
D)Lung tissue elasticity

Accepted Answer

Brain damage can affect the respiratory centers in the brain, which can lead to changes in respiratory rate, rhythm, and depth.

Question 14

Which statement about the respiratory system and oxygen needs is incorrect? A)To meet oxygen needs,respiratory structures must be intact. B)To meet oxygen needs,alveoli must exchange O₂ and CO₂. C)To meet oxygen needs,the airway must be open. D)To meet oxygen needs,oxygen therapy is needed.

Accepted Answer

Oxygen therapy may be needed in some situations to increase the amount of oxygen in the bloodstream, but it is not always necessary to meet oxygen needs. The respiratory system, alveoli function, and airway patency are crucial in meeting the body's oxygen demands.

Question 15

The following can cause tachypnea except
A)Fever and exercise
B)Pain
C)Narcotic overdose
D)Airway obstruction

Accepted Answer

Narcotic overdose typically causes respiratory depression, leading to slower breathing, not tachypnea.

Question 16

A person has cardiovascular disease.The person has narrowed blood vessels.Why are oxygen needs affected?
A)The person does not have enough blood cells.
B)The person's heart cannot pump blood well because of pressure around the heart.
C)Blood flow to and from the heart is affected.
D)Blood loss occurs with cardiovascular disease.

Accepted Answer

Narrowed blood vessels can reduce blood flow to and from the heart, which can lead to decreased oxygen supply to the body's tissues. This can cause a variety of symptoms, including shortness of breath, fatigue, and chest pain.

Question 17

Cyanosis can be observed in the following except
A)Skin
B)Lips and mucous membranes
C)Nail beds
D)Eyes

Accepted Answer

Cyanosis cannot be observed in the eyes as the sclera (white part of the eye) does not contain blood vessels that can turn blue.

Question 18

Which part of the blood carries oxygen?
A)Red blood cells
B)White blood cells
C)Platelets
D)Plasma

Accepted Answer

Red blood cells contain hemoglobin, a protein that binds with oxygen to carry it from the lungs to the body's tissues. Other components of blood, such as white blood cells, platelets, and plasma, do not carry oxygen.

Question 19

Mucus from the respiratory tract that is expectorated through the mouth is
A)Saliva
B)Sputum
C)Hemoptysis
D)Hypoxia

Accepted Answer

Mucus from the respiratory tract that is expectorated through the mouth is called sputum. Saliva is produced by the salivary glands in the mouth, hemoptysis is coughing up blood from the respiratory tract, and hypoxia is a condition in which the body doesn't receive enough oxygen.

Question 20

Narcotics affect oxygen needs because they
A)Cause brain damage
B)Depress the respiratory center in the brain
C)Decrease heart rate and blood flow
D)Cause swelling of the mucous membranes in the upper airway

Accepted Answer

Narcotics can depress the respiratory center in the brain, leading to slower breathing and decreased oxygen intake. This can be dangerous, especially if the person is already experiencing respiratory distress.

Quiz 36: Oxygen Needs

Aging affects oxygen needs in the following ways except

Alcohol use causes what effect on the brain?

A productive cough produces

You find a person leaning forward over a table.What should you do?

The earliest signs of hypoxia are

Oxygen needs increase with the following except

The following are reported to the nurse except

Oxygen and carbon dioxide are exchanged

Persons who are in cardiac arrest or respiratory arrest have

Which statement about hypoxia is incorrect?

Excessive amounts of alcohol intake

To produce red blood cells,the body needs

Brain damage can affect

Which statement about the respiratory system and oxygen needs is incorrect?

The following can cause tachypnea except

A person has cardiovascular disease.The person has narrowed blood vessels.Why are oxygen needs affected?

Cyanosis can be observed in the following except

Which part of the blood carries oxygen?

Mucus from the respiratory tract that is expectorated through the mouth is

Narcotics affect oxygen needs because they