Hyperparathyroidism is caused by increased levels of thyroxine in blood plasma. A client with this endocrine dysfunction would experience:

Correct Answer: A

Rationale: Hyperparathyroidism is caused by increased levels of parathyroid hormone (PTH), not thyroxine. The effects of hyperparathyroidism include increased calcium levels in the blood, which can lead to symptoms such as heat intolerance and systolic hypertension. Systolic hypertension is when the top number in a blood pressure reading is elevated. This is why option A (heat intolerance and systolic hypertension) is the correct choice for a client with hyperparathyroidism. Options B, C, and D do not accurately reflect the symptoms associated with this endocrine dysfunction.

Correct Answer: A

Rationale: The normal range of plasma pH in the human body typically falls between 7.35 and 7.45. This range is necessary to maintain the body's acid-base balance, which is crucial for normal physiological functioning. Deviations from this range can indicate acidosis (pH < 7.35) or alkalosis (pH > 7.45), both of which can have serious health implications. Therefore, option A (7.35-7.45) represents the normal range of plasma pH among different clients.

Correct Answer: C

Rationale: Methotrexate is a chemotherapy medication that is commonly used in the treatment of various types of cancers, including leukemia. Leukemia is a cancer of the blood and bone marrow that affects the white blood cells. Methotrexate works by interfering with the growth and division of cancer cells, thereby helping to slow down or stop the progression of the disease. It is not typically used to treat thalassemia, hemophilia, or sickle cell anemia, as these conditions are not cancers and require different types of treatment approaches.

Correct Answer: D

Rationale: This question specifically pertains to visual disturbances and can provide valuable information about the patient's eye health. Seeing halos around lights can indicate increased intraocular pressure, which could be a sign of conditions such as glaucoma. Therefore, this subjective data question would assist the nurse in assessing the patient's eye health. On the other hand, choices A, B, and C are not directly related to eye health and would not provide relevant information in assessing the patient's eyes.

Correct Answer: A

Rationale: CT scan of the neck and chest can help identify a primary neuroblastoma mass in the adrenal gland or sympathetic chain.