A nurse is preparing to administer an IV osmotic diuretic to a client with increased intracranial pressure (ICP). Which of the following should the nurse identify as the purpose of the medication?
To lower intracranial pressure by increasing urinary output.
To reduce cerebral blood flow.
To prevent the formation of cerebral edema.
To decrease brain oxygen consumption.
The Correct Answer is A
A. The primary purpose of administering an osmotic diuretic, such as mannitol, is to lower ICP by promoting diuresis, which results in increased urinary output and decreases fluid volume in the brain.
B. Osmotic diuretics do not specifically reduce cerebral blood flow; rather, they work by reducing fluid volume and thus intracranial pressure.
C. While osmotic diuretics can help manage edema, their primary role is not solely to prevent the formation of cerebral edema but to actively reduce existing pressure.
D. Osmotic diuretics do not directly decrease brain oxygen consumption; their main function is to create an osmotic gradient that pulls fluid from the brain to reduce ICP.
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Correct Answer is B
Explanation
A. Profound hypocalcemia is not associated with hyperthyroidism; it is more common in hypoparathyroidism.
B. Thyroid Storm is a life-threatening complication of hyperthyroidism, characterized by high fever, tachycardia, hypertension, and altered mental status. It requires immediate medical intervention to prevent serious outcomes.
C. Diabetes Insipidus is unrelated to hyperthyroidism and typically occurs due to antidiuretic hormone dysfunction.
D. Severe hypotension is not a typical complication of hyperthyroidism; rather, hypertension is more likely due to increased metabolic rate and cardiac output.
Correct Answer is A
Explanation
A. Baked fish is rich in iodine, which supports thyroid function and can be beneficial for clients with hypothyroidism. Iodine is necessary for thyroid hormone production.
B. Tuna salad may contain iodine, but it is not as reliable a source as baked fish and may also contain added fats.
C. Bran flakes are high in fiber, which can interfere with the absorption of thyroid medications.
D. Cantaloupe, while nutritious, does not provide significant levels of iodine or nutrients that directly support thyroid function.