ATI LPN
Medical Surgical Endocrine Practice Quiz Questions
Question 1 of 5
Which of the following lymphocytes are involved in innate immunity?
Correct Answer: A
Rationale: NK cells are innate, targeting infected/cancer cells; others are adaptive (T/B) or phagocytic.
Question 2 of 5
The primary role of the phosphate buffer system is to?
Correct Answer: C
Rationale: Phosphate buffers metabolic/fixed acids in blood and urine.
Question 3 of 5
The most common site of esophageal cancers are found in the:
Correct Answer: B
Rationale: The middle third of the esophagus is the most common site for esophageal squamous cell carcinoma, which historically predominates, though adenocarcinoma in the lower third is increasing in Western populations due to Barrett's esophagus.
Question 4 of 5
Histamine stimulation produces a large increment in secretion over the basal rate
Correct Answer: B
Rationale: In Zollinger-Ellison syndrome, histamine stimulation produces minimal additional secretion because basal rates are already maximally elevated by gastrin.
Question 5 of 5
Gallstones are statistically associated in a positive way with all of the following except:
Correct Answer: D
Rationale: Gallstones are linked to age, female sex (especially premenopausal), obesity, and diabetes; 'none of these' is incorrect as all are risk factors.