The nurse in the emergency room is reviewing the health record of a client who is being evaluated for Graves' disease. The nurse should identify which of the following laboratory results is an expected finding?
Decreased thyrotropin receptor antibodies
Decreased free thyroxine index
Decreased triiodothyronine
Decreased thyroid-stimulating hormone (TSH)
The Correct Answer is D
A. Decreased thyrotropin receptor antibodies: Graves' disease is characterized by the presence of thyrotropin receptor antibodies, so they are typically increased, not decreased.
B. Decreased free thyroxine index: Graves' disease typically results in increased levels of thyroid hormones, not decreased.
C. Decreased triiodothyronine: T3 levels may be elevated in Graves' disease due to increased thyroid hormone production.
D. Decreased thyroid-stimulating hormone (TSH): Graves' disease causes excessive thyroid hormone production, leading to suppressed TSH levels. TSH is typically low in hyperthyroidism because the thyroid gland is overactive and not being stimulated by the pituitary gland.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["3"]
Explanation
Lidocaine infusion calculation:
- Lidocaine dose ordered: 2 mg/min
- Lidocaine concentration: 2 gm in 500 mL
- Conversion factor: 1 mg = 1000 mcg
Calculations:
- Convert Lidocaine dose to mcg/min: 2 mg/min × 1000 mcg/mg = 2000 mcg/min
- Lidocaine concentration is 2 gm in 500 mL, which equals 4000 mcg/mL.
- Calculate mL/hr:
- mL/hr = (2000 mcg/min × 60 min/hr) / 4000 mcg/mL = 3 mL/hr
Answer:
- mL/hr: 3 mL/hr
Correct Answer is A
Explanation
A. "Take this medication before a meal or several hours after a meal." Levothyroxine absorption can be affected by food, so it's generally recommended to take it on an empty stomach to ensure consistent absorption. Food, particularly high-fiber or calcium-rich foods, can interfere with levothyroxine absorption, hence taking it before meals or a few hours after meals helps optimize its effectiveness.
B. "Take this medication during your morning meal.": This may not ensure consistent absorption as food can still interfere with medication absorption.
C. "Take this medication with a full glass of water or fruit juice.": While water is recommended for swallowing pills, it doesn't address timing or food interactions.
D. "Take this medication with high-protein foods.": Protein content in food does not affect levothyroxine absorption directly.
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