ATI RN
Cardiovascular System Exam Questions
1. What is a surgical procedure to create an opening in the windpipe to assist with breathing?
- A. Tracheostomy
- B. Lobectomy
- C. Thoracotomy
- D. Pleurodesis
Correct answer: A
Rationale: Tracheostomy is the correct answer. It is a surgical procedure to create an opening in the windpipe (trachea) to assist with breathing. This procedure is commonly used for patients who require long-term ventilation support. Choice B, Lobectomy, involves the removal of a lobe of the lung and is not related to creating an opening in the windpipe. Choice C, Thoracotomy, is a surgical incision into the chest wall and is not specifically related to creating an opening in the windpipe. Choice D, Pleurodesis, is a procedure to treat recurrent pleural effusions by causing the pleural layers to stick together, and it is not related to creating an opening in the windpipe.
2. Which of the following is a central vasodilator and peripheral vasoconstrictor?
- A. Sympathetic nervous system
- B. Parasympathetic nervous system
- C. Norepinephrine
- D. Acetylcholine
Correct answer: A
Rationale: The correct answer is the Sympathetic nervous system. The sympathetic nervous system is a branch of the autonomic nervous system that is responsible for the fight-or-flight response. It causes vasodilation in central vessels to increase blood flow to vital organs during stress or exercise, while inducing vasoconstriction in peripheral vessels to redirect blood to essential areas. Norepinephrine and acetylcholine are neurotransmitters associated with the sympathetic and parasympathetic nervous systems, respectively, but they are not themselves central vasodilators and peripheral vasoconstrictors.
3. Which condition involves the tearing of the aorta, leading to severe pain and internal bleeding?
- A. Aortic dissection
- B. Aneurysm
- C. Stroke
- D. Myocardial infarction
Correct answer: A
Rationale: The correct answer is Aortic dissection. Aortic dissection is a life-threatening condition where the inner layer of the aorta tears, causing severe chest or back pain and internal bleeding, requiring immediate medical attention. Choice B, aneurysm, involves a bulging or weakening of a blood vessel wall, which is different from a tear in the aorta. Choices C and D, stroke and myocardial infarction, do not directly involve the tearing of the aorta and are distinct conditions.
4. The nurse is giving digoxin to a client. What is the most important parameter to check before administration?
- A. Heart rate
- B. Blood pressure
- C. Respiratory rate
- D. Oxygen saturation
Correct answer: A
Rationale: The correct answer is A: Heart rate. Before administering digoxin, it is crucial to check the client's heart rate because digoxin can cause bradycardia, an abnormally slow heart rate. Monitoring the heart rate is essential to prevent potential complications associated with digoxin therapy. Choices B, C, and D are less critical parameters to assess before administering digoxin. While blood pressure is also important to monitor during digoxin therapy, the most crucial parameter to check due to the medication's potential effect on heart rate is the heart rate itself.
5. A client on a beta blocker has a heart rate of 52 bpm. What is the nurse’s priority action?
- A. Hold the beta blocker and notify the healthcare provider.
- B. Administer the beta blocker as ordered.
- C. Increase the dose of the beta blocker.
- D. Continue to monitor the client and reassess in 30 minutes.
Correct answer: A
Rationale: The correct answer is to hold the beta blocker and notify the healthcare provider. A heart rate of 52 bpm is low, and beta blockers can further decrease the heart rate, potentially causing harm. Therefore, withholding the medication and promptly informing the healthcare provider is crucial for further assessment and possible adjustment of the treatment plan. Administering the beta blocker as ordered (Choice B) can exacerbate the bradycardia. Increasing the dose of the beta blocker (Choice C) would further suppress the heart rate. Continuing to monitor the client and reassessing in 30 minutes (Choice D) might delay necessary interventions and increase the risk of complications in a client with a heart rate of 52 bpm.
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