A nurse is caring for a client who has a history of chronic obstructive pulmonary disease (COPD) and is receiving oxygen therapy at home. The nurse should instruct the client to report which of the following findings as an indication of oxygen toxicity?

Choice A reason: Encouraging the child to avoid sharing hats with other children is a preventive measure to reduce the risk of lice transmission. Lice are spread by direct contact with the hair or personal items of an infested person. Hats, combs, brushes, scarves, and pillows are some of the items that can harbor lice.

Choice B reason: The lice can survive for 2 weeks away from the host is a false statement. Lice cannot live longer than 24 to 48 hours without a human host. They need blood to survive and reproduce. Therefore, this information is not helpful for the parents to prevent or treat lice.

Choice C reason: Washing your child's hair daily will prevent lice is a false statement. Lice are not a sign of poor hygiene or cleanliness. They can affect anyone regardless of how often they wash their hair. In fact, lice may prefer clean hair because it is easier to attach to. Therefore, this information is not helpful for the parents to prevent or treat lice.

Choice D reason: Lice can jump from one child to another is a false statement. Lice cannot jump, fly, or hop. They can only crawl from one person to another. Therefore, this information is not helpful for the parents to prevent or treat lice.

Choice A reason: Leukemia is not a probable condition, as it is a cancer of the white blood cells that causes abnormal proliferation and accumulation of immature or dysfunctional white blood cells. The child has a high WBC count, which can indicate leukemia, but not necessarily. The child does not have other signs of leukemia, such as bleeding, bruising, bone pain, or lymphadenopathy.

Choice B reason: Sickle cell anemia is a possible condition, as it is an inherited disorder that affects the shape and function of the red blood cells, causing them to become sickle-shaped and rigid. The child has a low Hgb and Hct, which can indicate anemia, and a fever, tachycardia, and low oxygen saturation, which can indicate a sickle cell crisis. A sickle cell crisis is a condition where the sickle-shaped red blood cells block the blood flow and cause tissue ischemia and inflammation.

Choice C reason: Hemophilia is not a likely condition, as it is an inherited disorder that affects the clotting factors, causing impaired blood clotting and increased risk of bleeding. The child has a low Hgb and Hct, which can indicate anemia, but not necessarily hemophilia. The child does not have other signs of hemophilia, such as bleeding, bruising, hemarthrosis, or hematuria.

Choice D reason: Iron deficiency anemia is not a definite condition, as it is a type of anemia that occurs when the body does not have enough iron to produce hemoglobin, the protein that carries oxygen in the blood. The child has a low Hgb and Hct, which can indicate iron deficiency anemia, but not necessarily. The child does not have other signs of iron deficiency anemia, such as pallor, fatigue, weakness, or pica.