Fire Service Communications No. 1 Questions taken from Jones & Bartlett Fundamentals of Fire Fighter Skills (3rd Edition) Progress Indicator: Question 5 of 22 5.  Which of the following is the most accurate method to differentiate benign from malignant thyroid nodules? Choices: Fine needle aspiration biopsy Ultrasound of the thyroid gland Measurement of thyroid antibodies Radionuclide iodine uptake