ATI LPN
Upper Gastrointestinal System NCLEX Questions Questions
Question 1 of 5
The enzyme pepsin digests
Correct Answer: C
Rationale: Pepsin breaks down proteins.
Question 2 of 5
What sequence of organs do substances pass through, as they move through the human digestive system?
Correct Answer: C
Rationale: The correct sequence is mouth, esophagus, stomach, small intestine, large intestine, anus. The pancreas and liver are accessory organs, not part of the direct path, making C the correct choice.
Question 3 of 5
Which layer is the myenteric plexus located in?
Correct Answer: A
Rationale: The myenteric plexus, part of the enteric nervous system, is located between the muscle layers of the muscularis, controlling GI motility.
Question 4 of 5
The rhythmic contractions of the digestive tract that allow the movement of food are called:
Correct Answer: C
Rationale: Peristalsis refers to the wave-like muscle contractions that move food through the digestive tract, making C the correct answer.
Question 5 of 5
In a patient admitted with acute coronary syndrome, which of the following variables at admission contributes to estimating the risk of death or recurrent myocardial in the GRACE score?
Correct Answer: C
Rationale: The GRACE score includes variables like age, heart rate, systolic BP, creatinine, cardiac arrest, ST-segment deviation, and troponin, but not explicitly these options; however, oxygen saturation can indirectly reflect severity, making C the most relevant.