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

Answer and Explanation

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.

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Correct Answer is B

Explanation

Choice A reason: This is not the correct answer, as contact precautions are indicated for patients who have infections that can be spread by direct or indirect contact with the patient or their environment. Influenza is not spread by contactbut by respiratory droplets.

Choice B reason: This is the correct answer, as droplet precautions are indicated for patients who have infections that can be spread by large droplets that are generated by coughing, sneezing, or talking and can be transmitted to others who are within 3 feet of the patient. Influenza is caused by a virus that can spread through respiratory droplets.

Choice C reason: This is not the correct answer, as airborne precautions are indicated for patients who have infections that can be spread by small droplets that remain in the air for long periods of time and can be inhaled by others. Influenza is not spread by airborne droplets, unless it is a novel strain that has the potential to cause a pandemic.

Choice D reason: This is not the correct answer, as neutropenic precautions are indicated for patients who have low white blood cell counts and are at risk of developing infections from normal flora or environmental sources. Influenza is not caused by normal flora or environmental sources, but by a virus that can infect the respiratory tract.

A. "Chickenpox is caused by a virus that can spread through direct contact with skin lesions or respiratory droplets." B. "Chickenpox is caused by a bacterium that can spread through contaminated food or water." C. "Chickenpox is caused by a fungus that can spread through inhalation of spores from soil or plants." D. "Chickenpox is caused by a parasite that can spread through bites from mosquitoes or ticks."

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.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a patient who has influenza. What type of transmission-based precautions should the nurse implement for this patient?

Correct Answer is B

Explanation

A nurse is implementing infection control measures for a child who has chickenpox. What statement by the nurse would be most appropriate to educate the child and family about this condition?

Correct Answer is A

Explanation

A nurse is educating a child and family about how to prevent community-acquired infections (CAIs). Which of the following statements by the nurse would be most appropriate to include in the teaching?

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