A client is hospitalized for observation after suffering heat exhaustion during a marathon race. He complains of dizziness when he stands up, and the RN determines that he has postural hypotension. Based on the information, which of the following electrolyte imbalances could cause the client's symptoms?

Choice A reason: An open wound is a concern for a diabetic client, as it can increase the risk of infection and delay the healing process. However, it does not require an immediate focused assessment, unless it is bleeding profusely, infected, or showing signs of tissue damage.

Choice B reason: Depression is a common complication of diabetes, as it can affect the client's mood, self-care, and adherence to treatment. However, it does not require an immediate focused assessment, unless the client is suicidal, psychotic, or unable to function.

Choice C reason: Chest pain is a symptom that can indicate a life-threatening condition, such as a heart attack, pulmonary embolism, or aortic dissection. It requires an immediate focused assessment, as it can compromise the client's cardiac and respiratory function and lead to death.

Choice D reason: Diabetes is a chronic condition that affects the client's blood glucose levels and can cause various complications, such as neuropathy, nephropathy, and retinopathy. However, it does not require an immediate focused assessment, unless the client is experiencing a hyperglycemic or hypoglycemic crisis.

Choice A reason: Cognitive domain of learning involves the mental processes of acquiring, storing, and applying knowledge. It includes skills such as remembering, understanding, analyzing, and evaluating. An example of cognitive learning is the RN asking the client to explain the purpose and effects of his inhaler.

Choice B reason: Affective domain of learning involves the emotional aspects of learning, such as attitudes, values, beliefs, and feelings. It includes skills such as receiving, responding, valuing, and committing. An example of affective learning is the RN asking the client how he feels about using his inhaler.

Choice C reason: Psychomotor domain of learning involves the physical aspects of learning, such as movement, coordination, and manipulation. It includes skills such as imitating, practicing, adapting, and creating. An example of psychomotor learning is the RN asking the client to demonstrate proper use of his inhaler.

Choice D reason: Kinesthetic domain of learning is not a recognized domain of learning, but rather a learning style that refers to the preference of learning by doing or experiencing. Kinesthetic learners tend to learn best by engaging in physical activities, such as hands-on tasks, simulations, and experiments.