ATI RN
Cardiovascular System Exam
1. Which valves close during ventricular systole and open during ventricular diastole?
- A. Semilunar valves
- B. Atrioventricular Valves
- C. Mitral valve
- D. Tricuspid valve
Correct answer: B
Rationale: The correct answer is B: Atrioventricular Valves. The atrioventricular (AV) valves, including the mitral valve and tricuspid valve, close during ventricular systole to prevent backflow of blood from the ventricles into the atria. They open during ventricular diastole to allow blood flow from the atria into the ventricles. Semilunar valves, choice A, are located at the exits of the ventricles and prevent backflow into the ventricles. The mitral valve and tricuspid valve, choices C and D, are specific types of AV valves.
2. A male patient is being treated with testosterone gel for hypogonadism. What important instruction should the nurse provide?
- A. Apply the gel to the face and neck for maximum absorption.
- B. Apply the gel to the chest or upper arms and allow it to dry completely before dressing.
- C. Apply the gel to the scalp and back.
- D. Apply the gel to the genitals for improved results.
Correct answer: B
Rationale: The correct instruction for applying testosterone gel is to apply it to the chest or upper arms and allow it to dry completely before dressing. This is important to prevent the transfer of the medication to others. Applying it to the face and neck (Choice A) is incorrect as these areas are not recommended. Similarly, applying it to the scalp and back (Choice C) or the genitals (Choice D) is also incorrect and can lead to inappropriate absorption or undesirable effects.
3. When admitting a client and completing a preassessment before administering medications, which of the following data should the nurse include? (Select all that apply.)
- A. Use of herbal teas
- B. Daily fluid intake
- C. Current health status
- D. Previous surgical history
Correct answer: A
Rationale: The correct answer is A, 'Use of herbal teas.' The nurse should inquire about the client's use of herbal teas because they often contain caffeine, which can impact medication biotransformation. This information is crucial to ensure the safe and effective administration of medications and to prevent potential drug interactions. Choice B, 'Daily fluid intake,' while important for overall assessment, is not directly related to medication administration. Choice C, 'Current health status,' is essential but not specific to medication administration preassessment. Choice D, 'Previous surgical history,' although relevant for a client's medical history, is not directly linked to medication administration preassessment.
4. How should the nurse characterize the client's appraisal of the job loss stressor?
- A. Irrelevant
- B. Harm/loss
- C. Threatening
- D. Challenging
Correct answer: D
Rationale: The client's statement reflects a positive outlook on the job loss, viewing it as a challenge and an opportunity for personal growth. This perspective suggests that the client is resilient and adaptive, focusing on new possibilities rather than dwelling on the negative aspects of the situation. Choice D, 'Challenging,' is the correct characterization as it aligns with the client's positive appraisal. Choices A, 'Irrelevant,' B, 'Harm/loss,' and C, 'Threatening,' are incorrect as they do not capture the client's adaptive response to the stressor.
5. A client with asthma presents with bilateral wheezing, decreased pulse oxygen saturation, and suprasternal retraction on inhalation. Which actions should the nurse take? (SATA)
- A. Administer prescribed salmeterol (Serevent) inhaler.
- B. Assess the client for a tracheal deviation.
- C. Administer oxygen to maintain saturations above 94%.
- D. Perform peak expiratory flow measurements.
Correct answer: C
Rationale: Suprasternal retraction during inhalation suggests the client is using accessory muscles due to difficulty in moving air into the respiratory passages caused by airway narrowing. The presence of bilateral wheezing and decreased pulse oxygen saturation further support airway narrowing. In this situation, immediate intervention is necessary to improve oxygenation. Administering oxygen to maintain saturations above 94% is crucial to support oxygenation. While administering a rescue inhaler may be warranted, the priority in this scenario is ensuring adequate oxygenation to address the respiratory distress.
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