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. During which period does the germinal period occur?
- A. Occurs during the second trimester of pregnancy
- B. Lasts about six weeks
- C. Lasts about two weeks
- D. Is the final period of a 38-week pregnancy
Correct answer: C
Rationale: The germinal period lasts about two weeks and occurs during the first two weeks of pregnancy. This is the time when the fertilized egg implants into the uterus and begins to divide rapidly. It is followed by the embryonic period, which lasts from about week 3 to week 8 of pregnancy. Choice A is incorrect because the germinal period happens in the early stages of pregnancy, not the second trimester. Choice B is incorrect because the germinal period typically lasts about two weeks, not six. Choice D is incorrect because the germinal period is an early stage of pregnancy and not the final period of a 38-week pregnancy.
3. A nurse is caring for a client who is receiving continuous cardiac monitoring. The client's heart rate is 69/min, and the PR interval is 0.24 seconds. What cardiac rhythm should the nurse interpret this finding as?
- A. First-degree AV block.
- B. Premature ventricular contraction.
- C. Sinus bradycardia.
- D. Atrial fibrillation.
Correct answer: A
Rationale: The correct answer is A: First-degree AV block. A PR interval of 0.24 seconds indicates a prolonged PR interval, which is characteristic of first-degree AV block. This rhythm is considered benign and often does not require treatment. Choice B, premature ventricular contraction, is characterized by early, abnormal ventricular contractions and would not be indicated by the findings provided. Choice C, sinus bradycardia, would present with a normal PR interval but a heart rate less than 60 beats per minute. Choice D, atrial fibrillation, is characterized by an irregularly irregular rhythm with no identifiable P waves, which does not align with the findings of a prolonged PR interval in this scenario.
4. A nurse is providing teaching to a group of parents of newborns who are planning to formula feed. Which of the following statements by a parent indicates a need for further teaching?
- A. "I will give formula to my baby at room temperature."
- B. "I will ensure my baby’s feeds last 10 to 15 minutes."
- C. "I will burp my baby halfway through each feeding."
- D. "I will watch for signs my baby is full and stop the feeding."
Correct answer: "I will ensure my baby’s feeds last 10 to 15 minutes."
Rationale: The correct answer is, "I will ensure my baby’s feeds last 10 to 15 minutes." This statement indicates a need for further teaching because it suggests a strict time limit for feedings, which may not be appropriate for a newborn. Newborns should be allowed to feed as long as they want, typically around 20-30 minutes per breast if breastfeeding, or on-demand with formula. Choices A, C, and D demonstrate proper feeding practices such as feeding at room temperature, burping halfway through each feeding, and watching for signs of fullness to stop the feeding, which are all appropriate responses by a parent of a formula-fed newborn.
5. When is Aspirin most effective when taken?
- A. On an empty stomach with cold water
- B. On a full stomach after a meal
- C. With a glass of fruit juice
- D. First thing in the morning
Correct answer: A
Rationale: Aspirin is best absorbed on an empty stomach to maximize its effectiveness. Taking it with cold water helps to enhance absorption. Choice B is incorrect as taking aspirin on a full stomach may reduce its absorption. Choice C is incorrect as fruit juice can sometimes interact with medications. Choice D is incorrect as taking aspirin first thing in the morning may not optimize its absorption.
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