ATI LPN
Medical Surgical Endocrine ATI Questions
Question 1 of 5
Which of the following can increase blood flow?
Correct Answer: A
Rationale: Larger diameter reduces resistance (F = P/R), increasing flow; others impede it.
Question 2 of 5
Which of the following structures protects the lower respiratory system from food and fluid bolus during swallowing?
Correct Answer: B
Rationale: Epiglottis closes over glottis during swallowing to prevent aspiration.
Question 3 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 4 of 5
Administration of a cholinergic agent produce a mild contraction of the esophagus in achalaisa
Correct Answer: A
Rationale: Cholinergic agents stimulate acetylcholine receptors, which can cause mild esophageal contraction in achalasia due to increased smooth muscle activity, though the lower esophageal sphincter remains dysfunctional.
Question 5 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.