Unit 4 - Ch. 40- Oxygenation
Questions And Answers 2023
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A patient who started smoking in adolescence and continues to smoke 40 years later
comes to the clinic. The nurse understands that this patient has an increased risk for
being diagnosed with which disorder:
1. Alcoholism and hypertension
2. Obesity and diabetes
3. Stress-related illnesses
4. Cardiopulmonary disease and lung cancer - Correct Answer-4. Effects of nicotine on
blood vessels and lung tissue have been proven to increase pathological changes,
leading to heart disease and lung cancer.
A patient has been diagnosed with severe iron deficiency anemia. During physical
assessment for which of the following symptoms would the nurse assess to determine
the patient's oxygen status?
1. Increased breathlessness but increased activity tolerance
2. Decreased breathlessness and decreased activity tolerance
3. Increased activity tolerance and decreased breathlessness
4. Decreased activity tolerance and increased breathlessness - Correct Answer-4.
Hypoxia occurs because of decreased circulating blood volume, which leads to
decreased oxygen to muscles, causing fatigue, decreased activity tolerance, and a
feeling of shortness of breath.
A patient is admitted to the emergency department with suspected carbon monoxide
poisoning. Even though the patient's color is ruddy, not cyanotic, the nurse understands
that the patient is at a risk for decreased oxygen-carrying capacity of blood because
carbon monoxide does which of the following:
1. Stimulates hyperventilation, causing respiratory alkalosis
2. Forms a strong bond with hemoglobin, creating a functional anemia.
3. Stimulates hypoventilation, causing respiratory acidosis
4. Causes alveoli to overinflate, leading to atelectasis - Correct Answer-2. Carbon
monoxide strongly binds to hemoglobin, making it unavailable for oxygen binding and
transport.
A 6-year-old boy is admitted to the pediatric unit with chills and a fever of 104°F (40°C).
What physiological process explains why the child is at risk for developing dyspnea?
1. Fever increases metabolic demands, requiring increased oxygen need.
2. Blood glucose stores are depleted, and the cells do not have energy to use oxygen.
