A nurse is teaching a group of parents about the chain of infection and how to prevent it. The nurse should explain that the first link in the chain of infection is which of the following?
Infectious agent
Reservoir
Portal of exit
Mode of transmission
The Correct Answer is A
Choice A reason: This is the correct answer, as the infectious agent is the microorganism that causes the infection, such as bacteria, viruses, fungi, or parasites.
Choice B reason: This is not the correct answer, as the reservoir is the second link in the chain of infection. It is the place where the infectious agent lives and grows, such as humans, animals, plants, soil, or water.
Choice C reason: This is not the correct answer, as the portal of exit is the third link in the chain of infection. It is the way that the infectious agent leaves the reservoir, such as through body fluids, skin, mucous membranes, or respiratory tract.
Choice D reason: This is not the correct answer, as the mode of transmission is the fourth link in the chain of infection. It is the way that the infectious agent travels from one host to another, such as through direct or indirect contact, droplet, airborne, vector, or vehicle transmission.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: This statement by the nurse would be most appropriate to educate the child and family about chickenpox, as it accurately describes the infectious agent and mode of transmission for this condition.
Choice B reason: This statement by the nurse would not be appropriate to educate the child and family about chickenpox, as it incorrectly describes the infectious agent and mode of transmission for this condition. Chickenpox is not caused by a bacterium or spread through contaminated food or water.
Choice C reason: This statement by the nurse would not be appropriate to educate the child and family about chickenpox, as it incorrectly describes the infectious agent and mode of transmission for this condition. Chickenpox is not caused by a fungus or spread through inhalation of spores from soil or plants.
Choice D reason: This statement by the nurse would not be appropriate to educate the child and family about chickenpox, as it incorrectly describes the infectious agent and mode of transmission for this condition. Chickenpox is not caused by a parasite or spread through bites from mosquitoes or ticks.
Correct Answer is D
Explanation
Choice A reason: This action should be taken by the nurse to prevent cross-contamination, as it helps protect the nurse and other patients from exposure to MRSA, which can be transmitted through direct or indirect contact with infected skin or wounds.
Choice B reason: This action should be taken by the nurse to prevent cross-contamination, as it helps prevent the transmission of MRSA, which can survive on surfaces or objects for long periods of time.
Choice C reason: This action should be taken by the nurse to prevent cross-contamination, as it helps eliminate MRSA, which can be resistant to many disinfectants and antibiotics.
Choice D reason: This is the correct answer, as all of the above actions should be taken by the nurse to prevent cross-contamination. MRSA is a serious and potentially life-threatening infection that can cause skin and soft tissue infections, bloodstream infections, pneumonia, or surgical site infections.
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