ATI RN
Cardiovascular System Exam Questions Pdf
1. This is a more accurate indicator of tissue perfusion. It represents the cardiac output in terms of liters per minute per square meter of body surface area. Its normal range is 2.4-4 L/min.
- A. Cardiac Index
- B. Stroke volume
- C. Ejection fraction
- D. Cardiac output
Correct answer: A
Rationale: The correct answer is A: Cardiac Index. Cardiac Index is a measure of cardiac output relative to body surface area, providing a more accurate assessment of tissue perfusion. It is calculated by dividing the cardiac output by the body surface area. The normal range for cardiac index is 2.4-4 L/min/m². Choice B, Stroke volume, refers to the amount of blood ejected by the heart in one contraction and is not adjusted for body surface area. Choice C, Ejection fraction, is the percentage of blood pumped out of the heart's ventricles with each contraction, not adjusted for body surface area. Choice D, Cardiac output, is the total volume of blood pumped by the heart per minute, without considering body surface area.
2. Dr. Dias's research shows that the death of a spouse in old age is correlated with a decline in the surviving partner's physical health. Which conclusion is supported by this study?
- A. The death of a spouse causes a decline in the surviving partner's physical health.
- B. The death of a spouse is related to a decline in the surviving partner's physical health.
- C. A decline in a surviving partner's physical health can cause the death of a spouse.
- D. A third variable, such as memory loss, causes a surviving partner's decline in physical health following the death of a spouse.
Correct answer: B
Rationale: Dr. Dias's research findings indicate a correlation between the death of a spouse and a decline in the surviving partner's physical health. This correlation suggests a relationship between the two variables, but it does not necessarily imply a direct cause-and-effect relationship. Therefore, the correct conclusion supported by this study is option B - 'The death of a spouse is related to a decline in the surviving partner's physical health.' Option A is too direct in its causation claim, which is not proven by correlation alone. Option C reverses the cause and effect relationship suggested by the research. Option D introduces an unrelated third variable, which is not supported by the study's findings.
3. A nurse in a provider's office is assessing a client who reports a decrease in the effectiveness of their arthritis medication. What factor should the nurse identify as contributing to this decrease?
- A. Increased activity level
- B. Bowel inflammation
- C. Long-term use of the medication
- D. History of dehydration
Correct answer: B
Rationale: Bowel inflammation can reduce the absorption of oral medications, leading to decreased effectiveness. In this case, the decrease in the effectiveness of the arthritis medication could be attributed to impaired absorption due to bowel inflammation. Choices A, C, and D are incorrect because increased activity level, long-term use of the medication, and history of dehydration are not directly associated with a decrease in medication effectiveness related to absorption issues.
4. A client has left homonymous hemianopsia. Which of the following is an appropriate nursing intervention?
- A. Teach the client to scan the right to see objects on the right side of their body.
- B. Place the bedside table on the right side of the bed.
- C. Orient the client to the food on their plate using the clock method.
- D. Place the wheelchair on the client's left side.
Correct answer: Place the bedside table on the right side of the bed.
Rationale: In a client with left homonymous hemianopsia, there is a loss of vision on the right side of both eyes. Placing the bedside table on the right side of the bed ensures that essential items are within the client's field of vision, minimizing the risk of injury or accidents. Teaching the client to scan to the right and orienting them using the clock method may be helpful strategies, but placing the bedside table on the right side of the bed is a more direct and immediate intervention to enhance the client's safety and independence.
5. What is the most appropriate action for a healthcare professional to take when a medication error occurs?
- A. Document the error in the patient's medical record.
- B. Report the error to the healthcare provider immediately.
- C. Apologize to the patient and explain what happened.
- D. Continue administering the medication and monitor the patient closely.
Correct answer: B
Rationale: When a medication error occurs, the most appropriate action for a healthcare professional is to report the error to the healthcare provider immediately. This is crucial for ensuring prompt corrective action to mitigate any potential harm to the patient. Documenting the error is important but should come after reporting it to the relevant authorities. Apologizing to the patient is important for maintaining trust and communication but should not take precedence over reporting and addressing the error. Continuing to administer the medication without addressing the error is unsafe and goes against patient safety protocols.
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