A male client attends a community support program for mentally impaired and chemical-abusing clients. The client tells the practical nurse (PN) that his drugs of choice are cocaine and heroin. What is the greatest health risk for this client?

Hemodialysis is a procedure used to remove waste products and excess fluid from the blood when the kidneys are unable to function properly. One of the waste products that accumulate in the blood during kidney dysfunction is creatinine. Creatinine is a byproduct of muscle metabolism, and its levels in the blood are normally regulated and eliminated by the kidneys. In AKI, the kidneys are not able to effectively filter and eliminate creatinine, leading to elevated levels in the blood. Hemodialysis helps to remove excess creatinine from the blood, resulting in decreased creatinine levels.

A- Elevated potassium levels (hyperkalemia) are common in AKI and can be life-threatening. Hemodialysis helps to remove excess potassium from the blood, restoring normal levels.

However, the best indicator of the effectiveness of hemodialysis in managing hyperkalemia would be monitoring the potassium levels before and after the session rather than considering it as the "best" indicator.

B- Decreased calcium levels can occur in kidney dysfunction due to impaired activation of vitamin D and decreased absorption of calcium from the intestines. While hemodialysis can help restore calcium levels, it may not be the primary laboratory value used to evaluate the effectiveness of each session.

C- Lowered hemoglobin levels can be seen in AKI due to various factors, including decreased production of red blood cells and blood loss. Hemodialysis can help remove waste products and excess fluid, but it may not directly address the underlying causes of lowered hemoglobin levels.

- A playpen is a portable enclosure that provides a confined space for a child to play in. It can be useful for keeping a child safe and supervised when the caregiver is busy or needs a break, but it should not be used as a substitute for active play or interaction with the caregiver or others.
- A 2-year-old child is in the developmental stage of toddlerhood, which is characterized by rapid physical, cognitive, social, and emotional growth. Toddlers are curious and eager to learn about the world around them, and they need opportunities to explore, experiment, and manipulate objects and materials. They also need stimulation, guidance, and feedback from their caregivers and peers to develop their language, problem-solving, and social skills.
- Keeping a 2-year-old child in a playpen for long periods of time or to prevent them from getting dirty can have negative effects on their development and well-being. It can limit their physical activity, creativity, and independence, and it can cause boredom, frustration, or resentment . It can also interfere with their attachment and bonding with their caregiver, as well as their self-esteem and self-image.
- Therefore, the practical nurse (PN) should use the statement "Children need time to actively explore their environment" in responding to this concern about using a playpen. This statement reflects the developmental needs and rights of the child, and it encourages the caregiver to provide a more stimulating and supportive environment for the child. It also implies that getting dirty is not a problem, but rather a natural and healthy part of play and learning.

- Therefore, option D is the correct answer, while options A, B, and C are incorrect. Option A is incorrect because it is judgmental and may offend or discourage the caregiver.