Dry skin (xerosis) can lead to itching (pruritus). What statement by the client indicates a need for further teaching about dry skin?

Choice A reason: This is not the correct answer because a skin infection is not transmitted by airborne droplets. A skin infection is usually caused by bacteria, fungi, or parasites that invade the skin and cause inflammation, redness, itching, or pus. A skin infection can be contagious by direct contact with the infected area or by sharing personal items, such as towels, clothing, or razors. The client with a skin infection should be placed in isolation for contact precautions, which involve wearing gloves and gowns and using disposable equipment.

Choice B reason: This is the correct answer because a fever with cough can be a sign of a respiratory infection that is transmitted by airborne droplets. A respiratory infection is caused by viruses, bacteria, or fungi that infect the lungs, throat, or nose and cause symptoms such as fever, cough, sore throat, or difficulty breathing. A respiratory infection can be contagious by inhaling the tiny droplets that are released when the infected person coughs, sneezes, or talks. The client with a respiratory infection should be placed in isolation for airborne precautions, which involve wearing a respirator mask and placing the client in a negative pressure room.

Choice C reason: This is not the correct answer because a rash is not transmitted by airborne droplets. A rash is a change in the color, texture, or appearance of the skin that can be caused by various factors, such as allergies, infections, medications, or injuries. A rash can be contagious by direct contact with the affected skin or by sharing personal items, such as clothing, bedding, or sports equipment. The client with a rash should be placed in isolation for contact precautions, which involve wearing gloves and gowns and using disposable equipment.

Choice D reason: This is not the correct answer because heart palpitations are not transmitted by airborne droplets. Heart palpitations are the sensation of having a fast, irregular, or pounding heartbeat that can be caused by various factors, such as stress, anxiety, caffeine, nicotine, or heart conditions. Heart palpitations are not contagious and do not require isolation. The client with heart palpitations should be evaluated for the underlying cause and treated accordingly.

Choice A reason: This is an incorrect answer because a pathogenic infection is caused by a microorganism that can cause disease in a healthy host. Pathogens are usually able to overcome the host's immune defenses and cause symptoms and damage. Examples of pathogenic infections are strep throat, tuberculosis, and malaria.

Choice B reason: This is the correct answer because an opportunistic infection is caused by a microorganism that normally does not cause disease in a healthy host, but can take advantage of a weakened immune system and cause serious illness. Opportunistic infections are common and often lifethreatening complications of HIV infection, as the virus destroys the CD4 cells that help fight infections. Examples of opportunistic infections are pneumocystis pneumonia, candidiasis, and toxoplasmosis.

Choice C reason: This is an incorrect answer because a nosocomial infection is acquired in a health care setting, such as a hospital, clinic, or nursing home. Nosocomial infections are usually caused by microorganisms that are resistant to antibiotics and can spread easily among patients and staff. Examples of nosocomial infections are methicillinresistant Staphylococcus aureus (MRSA), Clostridioides difficile (C. diff), and urinary tract infections.

Choice D reason: This is an incorrect answer because a root cause infection is not a valid term in medical terminology. A root cause is the underlying factor or reason that leads to a problem or outcome. A root cause analysis is a process of identifying and addressing the root causes of a problem or event, such as an infection, to prevent recurrence and improve quality and safety.