ATI RN
Exam Questions on Endocrine System Questions
Question 1 of 5
Which change in vital signs would you instruct a nursing assistant to report immediately for a patient with hyperthyroidism?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
The nurse reviews the function of thyroid gland hormones. What is the primary function of calcitonin?
Correct Answer: D
Rationale: The primary function of calcitonin is to regulate calcium and phosphorus balance in the body. Calcitonin works to decrease blood calcium levels by inhibiting bone breakdown and increasing calcium excretion by the kidneys. This helps maintain the overall balance of calcium and phosphorus in the body. Choices A, B, and C are incorrect as they do not align with the known function of calcitonin. Sodium and potassium balance, magnesium balance, and norepinephrine balance are not directly influenced by calcitonin.
Question 3 of 5
You are a resident in a hospital in a very poor part of the world. Their drug selection is limited. A patient presents with acute cardiac failure, for which your preferred drug is dobutamine, given intravenously. However, there is none available. Which of the following other drugs, or combination of drugs, would be a suitable alternative?
Correct Answer: D
Rationale: The correct answer is D: Norepinephrine plus phentolamine. Norepinephrine is a potent vasopressor that can increase blood pressure and cardiac output in acute cardiac failure. Phentolamine is an alpha-blocker that can help counteract the vasoconstrictive effects of norepinephrine. Rationale: 1. Norepinephrine: Increases blood pressure and cardiac output, improving perfusion to vital organs in acute cardiac failure. 2. Phentolamine: Counteracts the vasoconstrictive effects of norepinephrine, preventing excessive vasoconstriction. Summary: A: Dopamine at a very high dose may not be as effective as norepinephrine in acute cardiac failure. B: Ephedrine is a less potent vasopressor compared to norepinephrine. C: Ephedrine plus propranolol combination may lead to conflicting effects on blood pressure and heart rate
Question 4 of 5
What significant side effect of terazosin should the doctor warn a 69-year-old male patient about?
Correct Answer: B
Rationale: The correct answer is B: Postural hypotension. Terazosin is an alpha-1 blocker used to treat hypertension and BPH. Postural hypotension is a common side effect due to vasodilation, causing a sudden drop in blood pressure when changing positions. This side effect can lead to dizziness, fainting, and falls, especially in elderly patients. Bronchospasm (A) is not a common side effect of terazosin. Heart failure (C) is not a typical side effect and is unlikely with proper monitoring. Sedation (D) is not a significant side effect of terazosin.
Question 5 of 5
Which of the following sympathomimetics is not a catecholamine:
Correct Answer: C
Rationale: The correct answer is C: Amphetamine. Amphetamine is not a catecholamine because it is a synthetic drug, not naturally produced by the body like adrenaline (A), noradrenaline (B), and isoprenaline (D). Catecholamines are a class of neurotransmitters that include dopamine, adrenaline, and noradrenaline, all of which have a catechol group in their chemical structure. Amphetamine, on the other hand, is a substituted phenethylamine with no catechol group. This distinction makes amphetamine the only non-catecholamine among the given options.