Final answer:
The correct statement indicating a need for further instructions is b) I will need to drink a small dose of radioactive iodine before the test.
Step-by-step explanation:
The correct statement indicating a need for further instructions is b) I will need to drink a small dose of radioactive iodine before the test. This statement is incorrect because the radioactive iodine is not ingested before the test, but rather administered intravenously or through a small capsule. The purpose of the test is to measure the rate of iodine uptake by the thyroid gland, as mentioned in statement a. Statement c is also correct as a 24-hour urine specimen is collected to measure iodine excretion. Statement d is also correct as the client should minimize close contact with others due to the radioactivity in their system after the test.