A nurse is providing care for a client who has diabetes insipidus (DI). Which of the following is a cause of acquired central diabetes insipidus?
Hypokalemia
Surgery
Renal failure
Sickle cell disease
The Correct Answer is B
Choice A Reason:
Hypokalemia, or low potassium levels, is not a direct cause of central diabetes insipidus. Central diabetes insipidus is primarily related to issues with the production or release of antidiuretic hormone (ADH) from the hypothalamus or pituitary gland. Hypokalemia can affect kidney function but does not typically cause central diabetes insipidus.
Choice B Reason:
Surgery, particularly brain surgery, can cause central diabetes insipidus by damaging the hypothalamus or pituitary gland. These structures are crucial for the production and release of ADH, which regulates water balance in the body. Damage to these areas during surgery can lead to a deficiency in ADH, resulting in central diabetes insipidus.
Choice C Reason:
Renal failure is not a cause of central diabetes insipidus. While renal failure affects the kidneys’ ability to filter waste and balance fluids, central diabetes insipidus is related to a deficiency in ADH production or release. Renal failure can lead to other types of diabetes insipidus, such as nephrogenic diabetes insipidus, where the kidneys do not respond properly to ADH.
Choice D Reason:
Sickle cell disease is not a direct cause of central diabetes insipidus. Sickle cell disease primarily affects red blood cells and can lead to various complications, including kidney damage. However, it does not typically cause central diabetes insipidus, which is related to issues with ADH production or release.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Increased Thirst, Increased Urine Output, and Weight Loss
Increased thirst, increased urine output, and weight loss are symptoms commonly associated with diabetes mellitus, particularly uncontrolled diabetes. These symptoms occur due to the body’s attempt to eliminate excess glucose through urine, leading to dehydration and subsequent weight loss. However, these symptoms are not typically associated with elevated TSH levels, which indicate hypothyroidism.
Choice B reason: Fatigue, Constipation, Weight Gain
Fatigue, constipation, and weight gain are classic symptoms of hypothyroidism2. When the thyroid gland is underactive, it produces insufficient thyroid hormones, leading to a slowdown in the body’s metabolism. This results in fatigue, weight gain, and constipation, among other symptoms. Elevated TSH levels are a compensatory response by the pituitary gland to stimulate the thyroid to produce more hormones, confirming hypothyroidism.

Choice C reason: Anxiety, Unintended Weight Loss, Palpitations
Anxiety, unintended weight loss, and palpitations are symptoms typically associated with hyperthyroidism, not hypothyroidism. Hyperthyroidism occurs when the thyroid gland produces excessive thyroid hormones, leading to an accelerated metabolism. This results in symptoms such as weight loss, increased heart rate (palpitations), and anxiety. Elevated TSH levels would not be expected in hyperthyroidism; instead, TSH levels would be low due to negative feedback from high thyroid hormone levels.
Choice D reason: Shakiness, Sweating, Nausea
Shakiness, sweating, and nausea can be symptoms of various conditions, including hypoglycemia (low blood sugar), anxiety, or panic attacks. These symptoms are not specific to thyroid dysfunction and are not typically associated with elevated TSH levels. Hypothyroidism, indicated by high TSH levels, usually presents with symptoms related to a slowed metabolism, such as fatigue and weight gain, rather than shakiness and sweating.
Correct Answer is B
Explanation
Choice A Reason:
Conivaptan hydrochloride is a vasopressin receptor antagonist used to treat hyponatremia associated with SIADH. It works by blocking the action of ADH, thereby promoting water excretion without losing sodium. This medication is appropriate for managing SIADH.
Choice B Reason:
Vasopressin, also known as antidiuretic hormone (ADH), is not appropriate for a patient with SIADH. SIADH is characterized by excessive release of ADH, leading to water retention and hyponatremia. Administering vasopressin would exacerbate the condition by increasing water retention and further lowering sodium levels.
Choice C Reason:
Sodium chloride tablets are used to manage hyponatremia by increasing sodium levels in the blood. This treatment is appropriate for patients with SIADH to help correct the sodium imbalance caused by excessive ADH.
Choice D Reason:
Tolvaptan is another vasopressin receptor antagonist that is used to treat hyponatremia associated with SIADH. It helps to increase serum sodium levels by promoting water excretion while retaining sodium. This medication is suitable for managing SIADH.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
