ATI RN
Cardiovascular System Exam Questions
Question 1 of 5
In cases of myocardial infarction leading to shock, which medication is appropriate to counteract shock?
Correct Answer: B
Rationale: The correct answer is B: Dopamine. In myocardial infarction leading to shock, dopamine is appropriate due to its positive inotropic effects, increasing cardiac output and blood pressure. Atropine is not indicated for shock in this context. Digoxin may be contraindicated in acute myocardial infarction. Adenosine is not used in managing shock.
Question 2 of 5
Nurse's role in hemodynamic monitoring.
Correct Answer: C
Rationale: Nurses collect data and interpret findings to guide interventions.
Question 3 of 5
Which of the following is a chronic lung disease that includes conditions such as chronic bronchitis and emphysema, characterized by obstructed airflow from the lungs?
Correct Answer: A
Rationale: The correct answer is A: Chronic obstructive pulmonary disease (COP
D). COPD is characterized by chronic bronchitis and emphysema, leading to obstructed airflow from the lungs. Chronic bronchitis involves inflammation of the bronchial tubes, while emphysema damages the air sacs in the lungs. Pulmonary fibrosis (
B) is scarring of lung tissue, not obstructed airflow. Asthma (
C) is a condition where airways narrow and swell, not necessarily leading to obstructed airflow. Pneumonia (
D) is an infection in the lungs, not a chronic disease causing obstructed airflow.
Question 4 of 5
As the cardiac-vascular nurse prepares to administer an experimental cardiac drug to a patient who is participating in a research study, the patient states that they no longer want the medication. The nurse advises the patient that:
Correct Answer: D
Rationale: Patients have the right to refuse treatment or withdraw from a study at any time.
Question 5 of 5
Which structure serves as the normal pacemaker of the heart?
Correct Answer: A
Rationale: The correct answer is A: SA node. The SA node is known as the natural pacemaker of the heart because it initiates the electrical impulses that regulate the heartbeat. It is located in the right atrium and generates the electrical signals that coordinate the heart's contractions. The other choices, B: AV node, C: Purkinje fibers, and D: Atria, do play roles in the heart's electrical conduction system, but they do not serve as the primary pacemaker. The AV node delays the electrical impulses, the Purkinje fibers distribute the impulses to the heart muscles, and the atria contract to pump blood into the ventricles. However, none of these structures serve as the primary pacemaker like the SA node does.