ATI RN
Cardiovascular System Exam Questions Questions
Question 1 of 5
This is a test that measures the oxygen saturation level in the blood, often used to assess respiratory function.
Correct Answer: A
Rationale: The correct answer is A: Pulse oximetry. Pulse oximetry measures oxygen saturation levels in the blood by using a non-invasive method to determine the percentage of hemoglobin carrying oxygen. This test is commonly used to assess respiratory function quickly and efficiently. Summary of incorrect options: B: Spirometry measures lung function by assessing airflow and volume. C: ABG measures oxygen and carbon dioxide levels in the blood. D: Lung function test is a broad term that can include various tests, such as spirometry and imaging studies.
Question 2 of 5
What is a condition where the heart beats with an irregular or abnormal rhythm?
Correct Answer: A
Rationale: The correct answer is A: Arrhythmia. Arrhythmia refers to an irregular or abnormal heart rhythm. This is because the heart beats in a disorganized manner, which can lead to various health issues. Hypertension (B) is high blood pressure, not a heart rhythm issue. Tachycardia (C) is a condition where the heart beats too fast, not necessarily irregularly. Bradycardia (D) is when the heart beats too slowly, not necessarily irregularly. Therefore, Arrhythmia is the correct choice in this context.
Question 3 of 5
Which condition is characterized by the narrowing or blockage of arteries that supply blood to the heart by plaque?
Correct Answer: A
Rationale: The correct answer is A: Coronary artery disease (CAD). CAD is characterized by the narrowing or blockage of arteries supplying blood to the heart by plaque buildup. Plaque consists of cholesterol, fat, calcium, and other substances that can restrict blood flow to the heart, leading to various heart-related issues. Atherosclerosis (B) is the process of plaque buildup in arteries but is not specific to the heart. Peripheral artery disease (C) involves plaque buildup in arteries outside the heart. Congestive heart failure (D) is a condition where the heart cannot pump blood effectively, not directly related to plaque buildup in coronary arteries.
Question 4 of 5
What is a condition where the blood flow to the brain is temporarily blocked, often referred to as a mini-stroke?
Correct Answer: A
Rationale: The correct answer is A: Transient ischemic attack (TIA). A TIA is a temporary blockage of blood flow to the brain, causing stroke-like symptoms that typically resolve within 24 hours. This is distinct from a full-blown stroke (choice B) which results in permanent damage. Aneurysm (choice C) is a bulge in a blood vessel, not a blockage. Myocardial infarction (choice D) is a heart attack, not related to brain blood flow. In summary, TIA best fits the description of a temporary blockage of blood flow to the brain, making it the correct choice.
Question 5 of 5
What test measures the pressure inside the arteries as the heart pumps blood?
Correct Answer: A
Rationale: The correct answer is A: Blood pressure test. This test measures the pressure inside the arteries during the heart's pumping cycle. It assesses systolic and diastolic pressure, indicating the force exerted by blood on artery walls. Pulse oximetry (B) measures oxygen saturation, not arterial pressure. Echocardiogram (C) is an ultrasound that assesses heart structure and function, not arterial pressure. Spirometry (D) measures lung function, not arterial pressure. Therefore, the blood pressure test is the most relevant choice for assessing arterial pressure.