The ‘cold viruses’ are spread rapidly from person to person. Children are the major reservoir of cold viruses, often acquiring a new virus from another child in school or day care. In class, we talked about the greatest source of spread, and the most common portals for entry of the virus. What is the greatest source of spread?
Nasal mucosa
Conjunctival surface of the eye
Sneezing
Finger
The Correct Answer is C
Choice A reason: Nasal mucosa is a portal of entry for cold viruses, not the primary source of spread. Sneezing propels virus-laden droplets, infecting others, making it the greatest spread mechanism, so this is incorrect for the source.
Choice B reason: Conjunctival surfaces can be an entry point but are not the main source of spread. Sneezing disperses viruses widely through respiratory droplets, driving transmission, so this is incorrect for the greatest source.
Choice C reason: Sneezing is the greatest source of cold virus spread, as it releases aerosolized droplets containing viruses, infecting others via inhalation or surface contact. This is the primary transmission mode, making it the correct choice.
Choice D reason: Fingers spread viruses via fomites, but sneezing generates more widespread droplet transmission. Hand contact is secondary to respiratory spread, so this is incorrect for the greatest source of cold virus spread.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Blood in the chest cavity is a hemothorax, not a pneumothorax. Pneumothorax involves air entering the pleural space, disrupting lung expansion, while hemothorax involves blood accumulation, making this an incorrect explanation.
Choice B reason: A pneumothorax is air in the pleural space, causing lung collapse due to disrupted negative pressure. This can result from trauma or spontaneous rupture, leading to respiratory distress, making this the correct explanation of the condition.
Choice C reason: Pus in the pleural space is an empyema, typically from infection, not a pneumothorax. Pneumothorax involves air, not purulent fluid, causing lung collapse, making this an incorrect description of the condition.
Choice D reason: Collapse of small airways occurs in conditions like bronchiolitis, not pneumothorax. Pneumothorax involves air in the pleural cavity, not airway obstruction, leading to lung collapse, making this an incorrect explanation.
Correct Answer is C
Explanation
Choice A reason: Aspirin inhibits TXA2 synthesis, reducing platelet adhesion and clotting. This is a true mechanism of aspirin’s antiplatelet effect, so it’s incorrect as the exception.
Choice B reason: Aspirin reduces prostaglandin production, which decreases platelet aggregation. This is a valid antiplatelet mechanism, so it’s incorrect for the action aspirin does not perform.
Choice C reason: Aspirin does not inhibit fibrinogen-to-fibrin conversion; this is part of the coagulation cascade, not platelet function. Aspirin targets platelets, making this the correct action it doesn’t perform.
Choice D reason: Aspirin inhibits ADP-induced platelet aggregation, minimizing plug formation. This is a true antiplatelet effect, so it’s incorrect as the action aspirin does not do.
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