ATI LPN
Pharmacology and the Nursing Process 10th Edition Test Bank
Chapter 31 : Thyroid and Antithyroid Drugs Questions
Question 1 of 5
A 19-year-old student was diagnosed with hypothyroidism and has started thyroid replacement therapy with levothyroxine. After 1 week, she called the clinic to report that she does not feel better. Which response from the nurse is correct?
Correct Answer: B
Rationale: Levothyroxine takes several weeks to achieve full therapeutic effects as it gradually restores thyroid hormone levels. Surgery is not typically required, and diet or adherence issues are secondary considerations.
Question 2 of 5
A patient, newly diagnosed with hypothyroidism, has received a prescription for thyroid replacement therapy. The nurse will instruct the patient to take this medication at which time of day?
Correct Answer: A
Rationale: Taking levothyroxine in the morning minimizes the risk of insomnia, which can occur due to its stimulating effects. Evening or bedtime dosing may disrupt sleep.
Question 3 of 5
When reviewing the laboratory values of a patient who is taking antithyroid drugs, the nurse will monitor for which adverse effect?
Correct Answer: B
Rationale: Antithyroid drugs like propylthiouracil can cause bone marrow suppression, leading to decreased white blood cell counts (e.g., agranulocytosis). Glucose, red blood cell, and platelet counts are not typically affected.
Question 4 of 5
A patient has been taking levothyroxine for more than one decade for primary hypothyroidism. Today she calls because she has a cousin who can get her the same medication in a generic form from a pharmaceutical supply company. Which is the nurse's best advice?
Correct Answer: D
Rationale: Switching levothyroxine brands can affect thyroid function stability due to potential bioavailability differences, requiring monitoring and physician approval. Consistency is important, but switching is not absolutely prohibited.
Question 5 of 5
A patient has a diagnosis of primary hypothyroidism. Which statement accurately describes this problem?
Correct Answer: C
Rationale: Primary hypothyroidism results from thyroid gland dysfunction, impairing hormone production. Secondary hypothyroidism involves pituitary dysfunction, tertiary involves hypothalamic issues, and iodine deficiency is a specific cause, not the general definition.