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ATI RN · ATI Medical Surgical · Exam Questions on Endocrine System

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Steroid hormones influence cellular activities by __________.

A. activating cyclic AMP located outside the cell

B. binding to DNA and forming a gene-hormone complex

C. activating G proteins

D. using calcium ions as a second messenger

Expert Explanatory Rationale

Correct Answer: binding to DNA and forming a gene-hormone complex

Question 2 of 5

If growth hormone is overproduced in the adult, what is the resulting condition called?

A. pituitary dwarfism

B. gigantism

C. acromegaly

D. myxedema

Expert Explanatory Rationale

Correct Answer: acromegaly

Question 3 of 5

A patient presents with a bump on his neck. Upon taking a tissue sample, there appears to be parafollicular cells. The tumor is also associated with MEN II, although most of the time it is sporadic. What is the best way to moniter treatment?

A. Measure Thyroid Hormone Levels

B. Measure Iodine Levels

C. Measure Tsh Levels

D. Measure Calcitonin Levels

Expert Explanatory Rationale

Correct Answer: Measure Calcitonin Levels

Question 4 of 5

The nurse reviews the function of thyroid gland hormones. What is the primary function of calcitonin?

A. Sodium and potassium balance

B. Magnesium balance

C. Norepinephrine balance

D. Calcium and phosphorus balance

Expert Explanatory Rationale

Correct Answer: Calcium and phosphorus balance

Question 5 of 5

Thyroid hormone (a small iodinated amine) enters target cells in a manner similar to ________.

A. insulin, because insulin is a small peptide

B. steroid hormones, because both diffuse easily into target cells

C. growth hormone, because the thyroid works synergistically with thyroid hormone

D. glucagon, because the structure of glucagon is similar to that of thyroid hormone

Expert Explanatory Rationale

Correct Answer: steroid hormones, because both diffuse easily into target cells

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