ATI LPN
Gastrointestinal System Questions and Answers Questions
Question 1 of 9
Which of these organs is not considered an accessory digestive structure?
Correct Answer: A
Rationale: The mouth is part of the GI tract, not an accessory organ.
Question 2 of 9
Which of the following is a reactant in the chemical digestion of food?
Correct Answer: A
Rationale: Water is a reactant in hydrolysis reactions during digestion, making A correct.
Question 3 of 9
All lipids are absorbed through the brush border of the small intestine by the process of
Correct Answer: D
Rationale: Lipids, after emulsification by bile, are absorbed via simple diffusion across the brush border into enterocytes.
Question 4 of 9
Which of the following drug and loading dose combinations are recommended for immediate antiplatelet therapy of an NSTEMI?
Correct Answer: A
Rationale: For NSTEMI, guidelines recommend aspirin 300 mg and clopidogrel 300 mg loading doses, making A the correct answer.
Question 5 of 9
The appendix is attached to which of the following structures?
Correct Answer: A
Rationale: The appendix is attached to the cecum, part of the colon, making A correct.
Question 6 of 9
In which of the following regions of the GI tract does the highest proportion of goblet cells occur in the surface epithelium of the mucosa?
Correct Answer: D
Rationale: The large intestine has the highest goblet cell density for lubrication.
Question 7 of 9
Which human excretory organ breaks down red blood cells and synthesizes urea?
Correct Answer: D
Rationale: The liver breaks down red blood cells and synthesizes urea, making D the correct answer.
Question 8 of 9
Which of these organs is not considered an accessory digestive structure?
Correct Answer: A
Rationale: The mouth is part of the GI tract, not an accessory organ.
Question 9 of 9
What is the most definitive diagnostic test for peptic ulcer disease?
Correct Answer: B
Rationale: Endoscopy with biopsy is the most definitive test for PUD, allowing visualization of ulcers and testing for H. pylori, a common cause. Barium swallow can detect ulcers but is less specific. CT scan is used for complications like perforation, not primary diagnosis. Fecal occult blood detects bleeding but not the ulcer itself.