ATI RN
Cardiovascular System Practice Exam
1. For what reason might the nurse be given an order to administer milrinone (Primacor)?
- A. For congestive heart failure
- B. For hypertension
- C. For cardiac arrhythmias
- D. For bradycardia
Correct answer: A
Rationale: Milrinone is commonly prescribed for congestive heart failure to help improve cardiac function and alleviate symptoms. Choices B, C, and D are incorrect as milrinone is not typically used for hypertension, cardiac arrhythmias, or bradycardia. It is specifically indicated for congestive heart failure for short-term management.
2. Which type of heart valve disease occurs when the mitral valve does not close properly, allowing blood to flow backward into the left atrium?
- A. Mitral regurgitation
- B. Aortic stenosis
- C. Tricuspid regurgitation
- D. Pulmonary hypertension
Correct answer: A
Rationale: Mitral regurgitation is the correct answer. It occurs when the mitral valve does not close properly, allowing blood to flow backward into the left atrium. This condition can lead to symptoms such as fatigue, shortness of breath, and if left untreated, it can progress to heart failure. Aortic stenosis (choice B) is a different heart valve condition characterized by narrowing of the aortic valve, restricting blood flow from the heart. Tricuspid regurgitation (choice C) involves the tricuspid valve not closing properly, leading to blood flowing back into the right atrium. Pulmonary hypertension (choice D) is a condition characterized by high blood pressure in the arteries of the lungs.
3. The client on warfarin has an INR of 1.2. What is the nurse’s priority action?
- A. Increase the dose of warfarin
- B. Administer vitamin K
- C. Monitor for signs of bleeding
- D. Hold the next dose and notify the healthcare provider
Correct answer: A
Rationale: The correct answer is to increase the dose of warfarin. An INR of 1.2 is below the therapeutic range for a client on warfarin, indicating that the dose is subtherapeutic. The priority action in this situation is to adjust the dose to achieve the target therapeutic INR range (usually 2-3) to prevent thromboembolic events. Administering vitamin K is not necessary as the INR is low, and there are no signs of bleeding. Monitoring for signs of bleeding is important but not the priority in this case since the INR is subtherapeutic. Holding the next dose and notifying the healthcare provider would delay the intervention needed to adjust the dose and achieve the therapeutic range.
4. What is a condition characterized by episodes of severe, acute shortness of breath, often occurring at night?
- A. Paroxysmal nocturnal dyspnea
- B. Sleep apnea
- C. Orthopnea
- D. Dyspnea
Correct answer: A
Rationale: Paroxysmal nocturnal dyspnea is the correct answer. It is characterized by sudden episodes of severe shortness of breath during sleep, often waking the individual. Choice B, Sleep apnea, involves pauses in breathing during sleep but does not usually present with acute shortness of breath. Choice C, Orthopnea, refers to shortness of breath that occurs when lying flat and is relieved by sitting up. Choice D, Dyspnea, is a general term for difficult or labored breathing and does not specifically describe acute episodes at night.
5. What term describes a condition where a person experiences difficulty breathing when lying flat and requires multiple pillows to sleep comfortably?
- A. Orthopnea
- B. Dyspnea
- C. Tachypnea
- D. Bradypnea
Correct answer: A
Rationale: The correct answer is A, Orthopnea. Orthopnea is a condition where a person finds it hard to breathe while lying flat and needs to use multiple pillows to sleep comfortably. This position helps relieve the discomfort by allowing better lung expansion. Choice B, Dyspnea, refers to difficulty breathing in general, not specifically related to lying flat. Choice C, Tachypnea, is rapid breathing and is not directly related to difficulty breathing while lying down. Choice D, Bradypnea, is slow breathing and does not describe the condition of having trouble breathing when lying flat.
Similar Questions
Access More Features
ATI RN Basic
$69.99/ 30 days
- 5,000 Questions with answers
- All ATI courses Coverage
- 30 days access
ATI RN Premium
$149.99/ 90 days
- 5,000 Questions with answers
- All ATI courses Coverage
- 30 days access