A nurse assesses an audible grating sound (crepitus) when a client with osteoarthritis moves his knees. What is the cause of this sound?

Choice A reason: These drugs kill the virus is not true about antiretroviral drugs used to treat human immunodeficiency virus (HIV), because it is inaccurate and misleading. Antiretroviral drugs do not kill the virus, but rather block or interfere with the enzymes or proteins that the virus needs to replicate or integrate into the host cells. Antiretroviral drugs can reduce the viral load, which is the amount of virus in the blood, but they cannot eliminate the virus completely.

Choice B reason: Only certain licensed drugs are effective is not true about antiretroviral drugs used to treat human immunodeficiency virus (HIV), because it is vague and incomplete. Antiretroviral drugs are licensed and approved by the regulatory authorities, such as the Food and Drug Administration (FDA), based on their safety and efficacy. However, not all licensed drugs are equally effective for all people with HIV, as the virus can develop resistance or mutation to some drugs over time. Therefore, the choice and combination of antiretroviral drugs may vary depending on the individual's viral genotype, drug history, and drug interactions.

Choice C reason: A few missed doses per month are OK is not true about antiretroviral drugs used to treat human immunodeficiency virus (HIV), because it is incorrect and dangerous. Antiretroviral drugs require strict adherence and compliance, which means taking the drugs exactly as prescribed, without missing or skipping any doses. A few missed doses per month are not OK, as they can reduce the effectiveness of the drugs and increase the risk of viral resistance or mutation, which can lead to treatment failure or disease progression.

Choice D reason: These drugs inhibit viral replication is true about antiretroviral drugs used to treat human immunodeficiency virus (HIV), because it describes the mechanism and outcome of the drugs. Antiretroviral drugs inhibit viral replication, which means they prevent or slow down the multiplication or reproduction of the virus. Antiretroviral drugs can inhibit viral replication by targeting different stages of the viral life cycle, such as reverse transcription, integration, or maturation. Antiretroviral drugs can improve the immune function and quality of life of people with HIV.

Choice A reason: "Tomorrow will be better." is not a statement that demonstrates empathy, but rather one that demonstrates false reassurance or denial. False reassurance or denial is a communication barrier that dismisses or minimizes the client's feelings or concerns, and offers unrealistic or vague promises that may not be fulfilled. False reassurance or denial can make the client feel invalidated, misunderstood, or hopeless.

Choice B reason: "This must be hard news to hear. Tell me more about it." is a statement that demonstrates empathy, which is the ability to understand and share the feelings of another person. Empathy is a communication skill that acknowledges and validates the client's feelings or concerns, and invites the client to express and explore them further. Empathy can make the client feel supported, respected, and empowered.

Choice C reason: "What is your biggest fear about this diagnosis?" is not a statement that demonstrates empathy, but rather one that demonstrates probing or prying. Probing or prying is a communication barrier that asks intrusive or inappropriate questions that may make the client feel uncomfortable, defensive, or threatened. Probing or prying can make the client feel violated, judged, or pressured.

Choice D reason: "I believe you can overcome this because I've seen how strong you are." is not a statement that demonstrates empathy, but rather one that demonstrates stereotyping or labeling. Stereotyping or labeling is a communication barrier that assigns a fixed or generalized characteristic to a person or a situation, without considering the individuality or uniqueness of the person or the situation. Stereotyping or labeling can make the client feel objectified, devalued, or misunderstood.