A nurse is caring for a client who has hypokalemia, hyperglycemia, and hypertension. A diagnosis of Cushing syndrome is suspected. Which of the following tests would the nurse anticipate the health care provider will order to help confirm the diagnosis of Cushing syndrome?

Radioactive iodine uptake test

24-hour cortisol urine study

Adrenocorticotropic hormone (ACTH) stimulation test

Edrophonium (Tensilon) test

Answer and Explanation

The Correct Answer is B

A. Radioactive iodine uptake test: This test is used to assess thyroid function and diagnose thyroid disorders, such as hyperthyroidism. It is not used to diagnose Cushing syndrome.
B. 24-hour cortisol urine study: This test measures cortisol levels in the urine over a 24-hour period and is commonly used to diagnose Cushing syndrome by evaluating elevated cortisol production.
C. Adrenocorticotropic hormone (ACTH) stimulation test: This test evaluates adrenal function and is typically used to assess adrenal insufficiency rather than Cushing syndrome.
D. Edrophonium (Tensilon) test: This test is used to diagnose myasthenia gravis, not Cushing syndrome. It evaluates the effect of the medication on muscle strength.

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Correct Answer is B

Explanation

A. I will need to wear a medical alert bracelet at all times: This statement is correct. Clients with Addison's disease should wear a medical alert bracelet to inform healthcare providers of their condition in case of an emergency, as it could impact treatment decisions.
B. I will need to hold my hydrocortisone dose if I have an infection: This statement indicates a need for additional teaching. Clients with Addison's disease should not hold their hydrocortisone dose if they have an infection. In fact, they may need to increase their dose during periods of stress or illness to manage their condition effectively.
C. I will take my hydrocortisone tablets twice a day: This statement is correct. Hydrocortisone is typically taken in divided doses to mimic the natural release of cortisol from the adrenal glands.
D. I will need to eat a high-sodium diet: This statement is correct. Clients with Addison's disease often need to increase their sodium intake, as they may have difficulties retaining sodium due to adrenal insufficiency.

A. B-type natriuretic peptide (BNP) B. Troponin I C. Blood urea nitrogen (BUN) D. Platelet levels

Correct Answer is A

Explanation

A. B-type natriuretic peptide (BNP): BNP levels are elevated in heart failure due to the heart's response to increased pressure and volume overload. This biomarker is used specifically to diagnose and assess the severity of heart failure.
B. Troponin I: This is a marker for myocardial injury and is used to diagnose acute myocardial infarction rather than heart failure.
C. Blood urea nitrogen (BUN): While elevated BUN can be associated with renal dysfunction or fluid overload in heart failure, it is not specific to diagnosing heart failure.
D. Platelet levels: These are not directly related to diagnosing heart failure and do not provide information about cardiac function.

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A nurse is caring for a client who has hypokalemia, hyperglycemia, and hypertension. A diagnosis of Cushing syndrome is suspected. Which of the following tests would the nurse anticipate the health care provider will order to help confirm the diagnosis of Cushing syndrome?

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Naxlex Comprehensive Predictor Exams

A nurse is providing education to a client who has a new diagnosis of Addison's disease. The nurse determines that additional teaching is needed when the client makes which of the following statements?

Correct Answer is B

Explanation

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Correct Answer is A

Explanation

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