A nurse in a health clinic is assisting in the planning of an educational program on skin cancer. Which of the following statements should be included in the presentation?

Choice A reason: The correct answer is a because hyperkalemia, or high serum potassium levels, often leads to peaked T waves on an ECG. A reduction of T wave amplitude indicates that potassium levels are decreasing and the medication is effective.

Choice B reason: P wave duration is not typically affected by hyperkalemia. Changes in the P wave are more commonly associated with atrial abnormalities, not electrolyte imbalances.

Choice C reason: Widening of the QRS complex is a sign of severe hyperkalemia and indicates worsening of the condition. The goal of treatment is to prevent such changes, not to observe them as an indication of effectiveness.

Choice D reason: Restoration of QRS complex amplitude is not a specific indicator of hyperkalemia or its treatment. The focus should be on changes in the T wave and other signs of electrolyte normalization.

Choice A reason: Squamous cell carcinoma commonly occurs on sun-exposed areas such as the face, ears, neck, and hands, but not necessarily the trunk. It is important to emphasize the role of sun exposure in the development of this type of skin cancer.

Choice B reason: Radiation therapy is used in the treatment of certain types of skin cancer, but it is not typically the first choice for metastatic skin cancer. Other treatments, such as surgery, immunotherapy, or targeted therapy, are often preferred depending on the type and stage of skin cancer.

Choice C reason: The correct answer is c because sun exposure, especially during childhood, significantly increases the risk of developing skin cancer later in life. This highlights the importance of sun protection measures from an early age to prevent skin cancer.

Choice D reason: Basal cell carcinoma is the most common and least aggressive type of skin cancer. It rarely metastasizes and is usually slow-growing, making early detection and treatment highly effective.