ATI RN
Cardiovascular System Exam Questions And Answers
1. Which term refers to the relaxation phase of the heart, during which the chambers fill with blood?
- A. Diastole
- B. Systole
- C. Refractoriness
- D. Automaticity
Correct answer: A
Rationale: The correct answer is A, Diastole. Diastole is the phase of the cardiac cycle when the heart muscles relax, allowing the chambers to fill with blood. Choice B, Systole, is incorrect as systole is the contraction phase of the heart when blood is pumped out of the chambers. Choice C, Refractoriness, refers to a period during which the heart muscle is unresponsive to stimuli. Choice D, Automaticity, relates to the heart's ability to generate its own electrical impulses.
2. A nurse in an emergency department is caring for a client who has sustained multiple injuries. The nurse observes the client's thorax moving inward during inspiration and outward during expiration. The nurse should suspect which of the following injuries?
- A. Flail chest
- B. Hemothorax
- C. Pulmonary contusion
- D. Pneumothorax
Correct answer: A
Rationale: The correct answer is A: Flail chest. Flail chest results from multiple rib fractures, causing paradoxical chest movement where the injured part moves inward during inspiration and outward during expiration, interfering with ventilation. Choice B, Hemothorax, involves blood in the pleural cavity and does not typically cause paradoxical chest movement. Choice C, Pulmonary contusion, is a bruise to the lung tissue and does not present with paradoxical chest movement. Choice D, Pneumothorax, is the presence of air in the pleural space, leading to lung collapse, but it does not demonstrate paradoxical chest movement like in flail chest.
3. The nurse is aware that which age group is at risk for childhood injury because of the cognitive characteristic of magical and egocentric thinking?
- A. Preschool
- B. Young school age
- C. Middle school age
- D. Adolescent
Correct answer: A
Rationale: Preschool children are at higher risk for injury due to magical and egocentric thinking, which can lead to misjudgments about their abilities and dangers.
4. A client has a new prescription for Hydrochlorothiazide. Which of the following information should the nurse include?
- A. Take the medication with food.
- B. Plan to take the medication at bedtime.
- C. Expect increased swelling of the ankles.
- D. Limit fluid intake in the morning.
Correct answer: A
Rationale: When educating a client about taking Hydrochlorothiazide, the nurse should advise taking the medication with food or after meals to prevent gastrointestinal upset. This medication is a diuretic, so it is important to maintain adequate fluid intake throughout the day to prevent dehydration. Taking it at bedtime is not necessary, and increased swelling of the ankles is not an expected side effect of this medication. Limiting fluid intake in the morning is not necessary and could lead to dehydration, which is a potential side effect of this diuretic.
5. Your nurse manager talks with you once per week to determine how you are adjusting to your role as a new nurse. She asks if you feel that you are able to provide good care to your patients, whether you are becoming familiar with the electronic health record, and whether your preceptor is encouraging your independence. This manager is demonstrating:
- A. An intrusive style.
- B. An effort to understand if you are coping with the demands.
- C. An attempt to intimidate.
- D. An authoritarian style.
Correct answer: B
Rationale: The correct answer is B. The nurse manager is showing an effort to understand if you are coping with the demands of your new role as a nurse. This approach demonstrates empathy and concern for your well-being and professional development. Choices A, C, and D are incorrect because there is no indication of intrusion, intimidation, or authoritarian behavior in the manager's actions. Instead, the manager is engaging in supportive and constructive communication to help you adjust and grow in your new position.
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