ATI RN
Cardiovascular System Exam
1. What is the condition where the heart's mitral valve does not close properly, allowing blood to leak 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 condition where the heart's mitral valve does not close properly, allowing blood to leak backward into the left atrium. This can result in symptoms like shortness of breath and fatigue. Choices B, C, and D are incorrect because aortic stenosis, tricuspid regurgitation, and pulmonary hypertension involve different heart valves or conditions, not the mitral valve specifically.
2. Which of the following is a key principle of the patient-centered care model?
- A. Healthcare provider satisfaction
- B. Cost reduction
- C. Patient autonomy
- D. Provider convenience
Correct answer: C
Rationale: The correct answer is C: Patient autonomy. Patient-centered care focuses on respecting and responding to patient preferences and needs, making patient autonomy a key principle. Choices A, B, and D are incorrect because the patient-centered care model prioritizes the patient's well-being and involvement in decision-making over healthcare provider satisfaction, cost reduction, or provider convenience.
3. What are the expected signs of increased intracranial pressure (IICP)?
- A. Restlessness, confusion, irritability
- B. Severe headache and confusion
- C. Elevated blood pressure and bradycardia
- D. Bradycardia and altered pupil response
Correct answer: A
Rationale: The correct answer is A: Restlessness, confusion, irritability. These are early signs of increased intracranial pressure (IICP) and require prompt intervention. Restlessness, confusion, and irritability are indicative of the brain's attempt to compensate for the rising pressure. Choice B is incorrect because severe headache alone is not specific to IICP and can be present in various conditions. Choice C is incorrect because elevated blood pressure is not a common sign of IICP; instead, hypertension may be present in the compensatory stage. Choice D is incorrect as bradycardia and altered pupil response are signs of advanced IICP, not early signs. Monitoring and recognizing these early signs are crucial for timely intervention and preventing further complications.
4. The client diagnosed with thalassemia, a hereditary anemia, is to receive a transfusion of packed RBCs. The cross-match reveals the presence of antibodies that cannot be cross-matched. Which precaution should the nurse implement when initiating the transfusion?
- A. Start the transfusion at 10-15 mL per hour for 15-30 minutes
- B. Re-crossmatch the blood until the antibodies are identified
- C. Have the client sign a permit to receive uncrossmatched blood
- D. Have the unlicensed nursing assistant stay with the client
Correct answer: A
Rationale: Starting the transfusion slowly at 10-15 mL per hour for 15-30 minutes is the correct precaution to implement when the cross-match reveals the presence of antibodies that cannot be cross-matched. This allows the nurse to monitor for any adverse reactions due to the presence of antibodies. Re-crossmatching the blood until the antibodies are identified is not practical and may delay the transfusion, potentially compromising the patient's condition. Having the client sign a permit to receive uncrossmatched blood is not the best course of action as the focus should be on ensuring a safe transfusion. Having an unlicensed nursing assistant stay with the client does not address the specific precaution needed to manage a transfusion in the presence of antibodies.
5. When providing care for 10-year-old Harper diagnosed with posttraumatic stress disorder (PTSD), which goal should be addressed initially?
- A. Harper will be able to identify feelings through the use of play therapy.
- B. Harper and her parents will have access to protective resources available through social services.
- C. Harper will demonstrate the effective use of relaxation techniques to restore a sense of control over disturbing thoughts.
- D. Harper and her parents will demonstrate an understanding of the personal human response to traumatic events.
Correct answer: C
Rationale: The initial goal when caring for a child with PTSD like Harper is to address restoring a sense of control over disturbing thoughts by teaching relaxation techniques. This approach helps the child manage their distressing emotions and promotes a feeling of empowerment in dealing with their condition.
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