ATI LPN
Gastrointestinal System Questions and Answers Questions
Question 1 of 9
Pancreatic juice ________.
Correct Answer: C
Rationale: Pancreatic juice neutralizes acidic chyme.
Question 2 of 9
In a patient with an office blood pressure (BP) measured as above 140/90 mmHg, which of the following should be used to confirm a diagnosis of hypertension?
Correct Answer: C
Rationale: Ambulatory BP>=135/85 mmHg confirms hypertension per guidelines, making C the correct answer.
Question 3 of 9
In humans, structures that release digestive secretions directly into the small intestine include both the
Correct Answer: D
Rationale: The pancreas releases digestive enzymes and the gall bladder releases bile directly into the small intestine via ducts to aid digestion. Salivary glands (A, C) secrete into the mouth, not the small intestine. Lacteals absorb fats, not secrete. Villi are absorptive structures, not secretory.
Question 4 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 5 of 9
Which of the following findings in a patient with PUD requires immediate intervention?
Correct Answer: B
Rationale: Dark, tarry stools indicate upper GI bleeding, a serious PUD complication requiring urgent intervention.
Question 6 of 9
For an organ lying within a body cavity, the tissue which forms the deepest layer (i.e., farthest from the inner core or lumen of the organ) is called the:
Correct Answer: B
Rationale: The serosa, a mesothelial layer, covers organs within body cavities like the peritoneal cavity.
Question 7 of 9
The muscularis externa of the upper third of the esophagus has primarily
Correct Answer: A
Rationale: The upper third of the esophagus has skeletal muscle in its muscularis externa, allowing voluntary swallowing control.
Question 8 of 9
Feces is usually about 40 percent water and 60 percent solid matter. Reducing the water content to 20 percent would most likely result in
Correct Answer: D
Rationale: Lower water content in feces leads to constipation, making D the correct answer.
Question 9 of 9
Which of the following epithelial types is most closely associated with active secretion at a mucosal surface, as in the stomach lining?
Correct Answer: C
Rationale: Simple columnar epithelium in the stomach secretes mucus and enzymes.