A client with a history of hypothyroidism has accidentally been taking double her prescribed dose of levothyroxine. Which assessment findings would the nurse expect due to an excess of this medication?
Weight gain and lethargy
Nervousness and tachycardia
Facial puffiness and constipation
Hypotension and intolerance to cold
The Correct Answer is B
A. Weight gain and lethargy: These symptoms are more commonly associated with hypothyroidism or insufficient thyroid hormone levels, not with excess levothyroxine.
B. Nervousness and tachycardia: Excessive levothyroxine can lead to symptoms of hyperthyroidism, such as increased heart rate (tachycardia) and nervousness. These symptoms are consistent with an overdose of levothyroxine.
C. Facial puffiness and constipation: These symptoms are indicative of hypothyroidism, not hyperthyroidism. They would not be expected with an excess of levothyroxine.
D. Hypotension and intolerance to cold: These are symptoms of hypothyroidism and would not typically occur with an excess of levothyroxine. Excess levothyroxine usually causes symptoms of hyperthyroidism.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. B-type natriuretic peptide (BNP): BNP levels are elevated in heart failure due to increased pressure and stretch in the heart's chambers. It is a key marker used to diagnose and assess the severity of heart failure.
B. Troponin I: This marker is used to diagnose myocardial infarction (heart attack) rather than heart failure. Elevated troponin levels indicate damage to the heart muscle.
C. Blood urea nitrogen (BUN): BUN levels can be elevated in heart failure due to decreased renal perfusion, but it is not as specific for diagnosing heart failure as BNP.
D. Platelet levels: Platelet levels are not directly related to the diagnosis of heart failure. They are more relevant for assessing clotting disorders and other conditions.
Correct Answer is B
Explanation
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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