ATI LPN
ATI Quiz Medical Surgical Endocrine Questions
Question 1 of 5
What is correct regarding cardiac contractile cells?
Correct Answer: D
Rationale: All are true: unique structure, plateau phase (Ca2+ influx), dual Ca2+ sources.
Question 2 of 5
The classic pathway of complement activation begins when the protein C1 binds to:
Correct Answer: C
Rationale: C1 binds antigen-antibody complexes, initiating classic complement.
Question 3 of 5
During hyperpnea:
Correct Answer: D
Rationale: Hyperpnea (deep breathing) requires active inspiration (diaphragm, external intercostals) and expiration (internal intercostals, abdominals).
Question 4 of 5
Which of the following is a respiratory response to acidosis?
Correct Answer: D
Rationale: Increased respiration removes CO2, raising pH in acidosis.
Question 5 of 5
Duodenal ulcers are usually found within 3 cm of the pylorus and occur with about equal frequently on the anterior and posterior walls
Correct Answer: A
Rationale: Duodenal ulcers typically occur within 3 cm of the pylorus, commonly on both anterior and posterior walls, due to acid exposure and Helicobacter pylori infection.