ATI LPN
Medical Surgical Endocrine Practice Quiz Questions
Question 1 of 5
Which of the following statements is false regarding heart disease and myocardial infarction (MI)?
Correct Answer: C
Rationale: Left anterior descending (LAD), not circumflex, is most commonly blocked in MI.
Question 2 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 3 of 5
Which of the following structures most is responsible for determining pulmonary resistance?
Correct Answer: D
Rationale: Bronchioles regulate airflow resistance via smooth muscle constriction/dilation.
Question 4 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 5 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.