ATI LPN
Foundations and Adult Health Nursing Test Bank
Chapter 48 Questions
Question 1 of 5
The nurse is aware that which layer is the muscle layer of the heart, which is responsible for the heart's contraction?
Correct Answer: D
Rationale: The myocardium is the specialized muscle layer that allows the heart to contract.
Question 2 of 5
The nurse clarifies that which is the area of the heart that normally initiates electrical impulses?
Correct Answer: C
Rationale: The SA node is the master pacemaker of the heart.
Question 3 of 5
The nurse is aware that the symptoms of an impending myocardial infarction (MI) differ in women because acute chest pain is not present. Women are frequently misdiagnosed as having which disorder?
Correct Answer: B
Rationale: Indigestion, gallbladder attack, anxiety attack, and depression are frequent misdiagnoses for women having an MI.
Question 4 of 5
The nurse identifies the 'lub' sound of the 'lub/dub' of the cardiac cycle as the sound of which event?
Correct Answer: A
Rationale: The lub is the first sound of a low pitch heard when the AV valves close.
Question 5 of 5
A patient is admitted from the emergency department. The emergency department health care provider notes the patient has a diagnosis of heart failure with a New York Heart Association (NYHA) classification of IV. This indicates the patient has which class of heart failure?
Correct Answer: B
Rationale: Class IV: Severe; patient unable to perform any physical activity without discomfort. Angina or symptoms of cardiac inefficiency may develop at rest.