A nurse is providing oral hygiene for an unconscious client. What is the priority nursing intervention?

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.

Choice A reason: "In order to avoid flareups of Raynaud's, ensure to keep cool." is not a correct answer, because it can worsen the symptoms of Raynaud's phenomenon. Raynaud's phenomenon is a condition that causes the blood vessels in the fingers and toes to narrow and spasm in response to cold or stress, resulting in reduced blood flow and color changes. Keeping cool can trigger or aggravate the spasms and decrease the blood flow.

Choice B reason: "In order to avoid flareups of Raynaud's, ensure you wear sunscreen." is not a correct answer, because it is not related to Raynaud's phenomenon. Sunscreen is a protective measure for clients with lupus, who may have increased sensitivity to ultraviolet rays and increased risk of skin damage and flareups. However, sunscreen does not prevent or treat Raynaud's phenomenon, which is caused by cold or stress, not by sun exposure.

Choice C reason: "In order to avoid flareups of Raynaud's, ensure you wear gloves in winter." is a correct answer, because it can help prevent or reduce the symptoms of Raynaud's phenomenon. Wearing gloves in winter can keep the hands warm and prevent the blood vessels from narrowing and spasming due to cold. This can improve the blood flow and prevent color changes, numbness, pain, or ulcers in the fingers.

Choice D reason: "In order to avoid flareups of Raynaud's, ensure you brush your teeth for two minutes." is not a correct answer, because it is not related to Raynaud's phenomenon. Brushing the teeth for two minutes is a good oral hygiene practice that can prevent dental problems, such as plaque, cavities, or gingivitis. However, brushing the teeth does not affect the blood vessels in the fingers and toes, nor does it prevent or treat Raynaud's phenomenon.