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. IV hydrocortisone: In an Addisonian crisis, there is an acute adrenal insufficiency which requires immediate treatment with IV hydrocortisone to replace the deficient glucocorticoids. This helps to rapidly correct the hormone imbalance and stabilize the patient.
B. Ketoconazole and insulin: Ketoconazole is an antifungal medication used to treat Cushing syndrome, not Addisonian crisis. Insulin is used for managing blood glucose levels and is not directly related to the treatment of an Addisonian crisis.
C. Lactated Ringer's IV infusion: While fluid replacement may be necessary in an Addisonian crisis, the immediate priority is to address the adrenal insufficiency with hydrocortisone. Lactated Ringer's may be used to support fluid balance but is not a substitute for glucocorticoid therapy.
D. Furosemide slow IV push: Furosemide is a diuretic used to manage fluid retention and is not indicated for treating Addisonian crisis. The primary treatment for Addisonian crisis is to address the adrenal hormone deficiency with hydrocortisone.
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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