ATI LPN
Medical Surgical Endocrine ATI Questions
Question 1 of 5
Which hormone plays a central role in determining the rate of sodium reabsorption and potassium secretion?
Correct Answer: B
Rationale: Aldosterone increases Na+ reabsorption and K+ secretion in distal nephron.
Question 2 of 5
Assays of plasma gastrin levels are used for diagnosis
Correct Answer: A
Rationale: Elevated plasma gastrin levels are a key diagnostic marker for Zollinger-Ellison syndrome, reflecting gastrinoma activity.
Question 3 of 5
Fatty liver occurs in:
Correct Answer: D
Rationale: Fatty liver is associated with late pregnancy (acute fatty liver), tetracycline toxicity, obesity, diabetes (nonalcoholic fatty liver disease), and Reye's syndrome (microvesicular steatosis).
Question 4 of 5
Radioactive iodine uptake in excess of 50% is usually observed in the course of:
Correct Answer: D
Rationale: Thyrotoxicosis (e.g., Graves' disease) typically shows RAI uptake >50% due to increased thyroid activity.
Question 5 of 5
The blood sugar fails to rise normally during an oral glucose tolerance test in:
Correct Answer: A
Rationale: Sprue (celiac disease) impairs glucose absorption, flattening the OGTT curve; the others do not typically affect it this way.