How does carbon monoxide cause death?
It increases blood pressure, leading to a heart attack or stroke.
It causes an increase in carbon dioxide, which causes an increase in pH.
It occupies oxygen binding sites on hemoglobin and decreases the amount of oxygen that reaches the tissues.
It causes inflammation within the bronchioles and prevents air from reaching the alveoli.
The Correct Answer is C
A. It increases blood pressure, leading to a heart attack or stroke: This is not the primary mechanism of carbon monoxide poisoning.
B. It causes an increase in carbon dioxide, which causes an increase in pH: This is incorrect. Carbon monoxide binds to hemoglobin more tightly than oxygen, not carbon dioxide.
C. It occupies oxygen-binding sites on hemoglobin and decreases the amount of oxygen that reaches the tissues: Carbon monoxide has a high affinity for hemoglobin, leading to reduced oxygen transport in the blood, which can cause tissue hypoxia and death.
D. It causes inflammation within the bronchioles and prevents air from reaching the alveoli: This is incorrect; carbon monoxide poisoning does not work by causing inflammation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Reabsorption of potassium ions: Potassium reabsorption occurs in the nephron, not in the bladder.
B. Secretion of hormones: The bladder does not secrete hormones; its primary function is to store urine.
C. Storage of urine: The bladder is responsible for storing urine before it is excreted from the body.
D. Filtration of urine: Filtration occurs in the kidneys, specifically in the glomerulus, not in the bladder.
Correct Answer is A
Explanation
A. Parietal pleura: The parietal pleura is the outer layer of the pleura that lines the thoracic cavity and is connected to the thoracic wall.
B. Diaphragm: The diaphragm is the main muscle involved in respiration, but it is not part of the lung's outer layer.
C. Pleural cavity: The pleural cavity is the space between the parietal and visceral pleura, filled with pleural fluid to reduce friction.
D. Visceral pleura: The visceral pleura is the inner layer that covers the lungs but does not connect to the thoracic wall.
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