A nurse is assessing a client who is receiving dopamine IV to treat left ventricular failure. Which of the following findings should indicate to the nurse that the medication is having a therapeutic eﬀect?

Systolic blood pressure is increased

Radial heart rate is increased

Cardiac output is reduced

Urine output is reduced

Answer and Explanation

The Correct Answer is A

Choice A Reason: This is correct because dopamine is a vasopressor that increases the contractility and stroke volume of the heart, which results in an increased systolic blood pressure.

Choice B Reason: This is incorrect because dopamine can cause tachycardia as a side eﬀect, but this does not indicate a therapeutic eﬀect. An increased radial heart rate can also indicate other conditions, such as anxiety, fever, or dehydration.

Choice C Reason: This is incorrect because dopamine does not reduce cardiac output, but rather increases it by improving the pumping function of the heart.

Choice D Reason: This is incorrect because dopamine does not reduce urine output, but rather increases it by stimulating the renal blood vessels and enhancing renal perfusion.

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Correct Answer is C

Explanation

Choice A Reason: This is incorrect because a pneumothorax is a condition in which air enters the pleural space and causes the lung to collapse. It does not cause the chest wall to move inward and outward paradoxically.

Choice B Reason: This is incorrect because atelectasis is a condition in which alveoli collapse and cause reduced gas exchange. It does not cause the chest wall to move inward and outward paradoxically.

Choice C Reason: This is correct because ﬂail chest is a condition in which multiple ribs are fractured and cause a segment of the chest wall to detach from the rest of the thoracic cage. It causes the chest wall to move inward and outward paradoxically, as well as dyspnea and pain.

Choice D Reason: This is incorrect because a hemothorax is a condition in which blood enters the pleural space and causes the lung to collapse. It does not cause the chest wall to move inward and outward paradoxically.

A. 54 percent B. 36 percent C. 18 percent D. 9 percent

Correct Answer is A

Explanation

Choice A Reason: To calculate the total body surface area (TBSA) affected by burns using the Rule of Nines, the body is divided into sections, each representing a percentage of TBSA:

Front of one leg = 9%
Back of one leg = 9%
Front of one arm = 4.5%
Back of one arm = 4.5%

Now for the calculation:

Both legs (front and back):
- Front of both legs = 9% × 2 = 18%
- Back of both legs = 9% × 2 = 18%
- Total for both legs = 18% + 18% = 36%
Both arms (front and back):
- Front of both arms = 4.5% × 2 = 9%
- Back of both arms = 4.5% × 2 = 9%
- Total for both arms = 9% + 9% = 18%
Total TBSA:
- Legs (36%) + Arms (18%) = 54%

The nurse should document burns to 54% of the client's total body surface area (TBSA).

Choice B Reason:This choice is incorrect because it uses the original rule of nines for adults, not children. It also does not account for the depth and degree of the burns.

Choice C Reason: This choice is incorrect because it uses the original rule of nines for adults, not children. It also does not account for the depth and degree of the burns.

Choice D Reason: This choice is incorrect because it uses a random percentage that does not correspond to any rule or calculation.

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A nurse is assessing a client who is receiving dopamine IV to treat left ventricular failure. Which of the following findings should indicate to the nurse that the medication is having a therapeutic eﬀect?

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Naxlex Comprehensive Predictor Exams

Correct Answer is C

Explanation

A nurse in an emergency department is caring for an adult client who has burns on the front and back of both his legs and arms. Using the rule of nines, the nurse should document burns to which percentage of the client's total body surface area (TBSA)?

Correct Answer is A

Explanation

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