NCLEX-RN
NCLEX RN Exam Review Answers
1. Mr. C is brought to the hospital with severe burns over 45% of his body. His heart rate is 124 bpm and thready, BP 84/46, respirations 24/minute and shallow. He is apprehensive and restless. Which of the following types of shock is Mr. C at highest risk for?
- A. Septic shock
- B. Hypovolemic shock
- C. Neurogenic shock
- D. Cardiogenic shock
Correct answer: B
Rationale: Mr. C, who has severe burns over 45% of his body, is at highest risk for hypovolemic shock. Burns lead to a loss of plasma volume, reducing the circulating fluid volume and impairing perfusion to vital organs and extremities. In this scenario, the signs of shock, such as increased heart rate, low blood pressure, shallow respirations, and restlessness, indicate a state of hypovolemic shock due to significant fluid loss. Septic shock (choice A) is primarily caused by severe infections, neurogenic shock (choice C) results from spinal cord injuries, and cardiogenic shock (choice D) stems from heart failure. However, in this case, the presentation aligns most closely with hypovolemic shock due to the extensive burn injury and its effects on fluid volume and perfusion.
2. A patient is admitted with active tuberculosis (TB). The nurse should question a healthcare provider's order to discontinue airborne precautions unless which assessment finding is documented?
- A. Chest x-ray shows no upper lobe infiltrates.
- B. TB medications have been taken for 6 months.
- C. Mantoux testing shows an induration of 10 mm.
- D. Three sputum smears for acid-fast bacilli are negative.
Correct answer: D
Rationale: The correct answer is D: Three sputum smears for acid-fast bacilli are negative. Negative sputum smears indicate that Mycobacterium tuberculosis is not present in the sputum, and the patient cannot transmit the bacteria by the airborne route. This finding is crucial for discontinuing airborne precautions. Choice A is incorrect because chest x-rays do not determine the presence of active TB for transmission precautions. Choice B is not directly related to the infectiousness of TB; completing a 6-month course of medication is important for treatment but does not confirm the absence of active disease or infectiousness. Choice C is not relevant to assessing infectiousness; Mantoux testing measures exposure to TB but does not confirm the absence of active infection or infectiousness.
3. A nurse is caring for a patient after a coronary angiogram. Which of these actions taken by the nursing assistant would most require the nurse's immediate intervention?
- A. The nursing assistant fills the patient's pitcher with ice-cold drinking water
- B. The nursing assistant elevates the head of the bed to 60 degrees for a meal
- C. The nursing assistant refills the ice pack placed on the insertion site
- D. The nursing assistant places an extra pillow under the patient's head upon request
Correct answer: B
Rationale: After a coronary angiogram, patients need to maintain bed rest and keep the head of the bed at no more than 30 degrees for 3-6 hours, depending on the insertion site. Elevating the head of the bed to 60 degrees for a meal could increase the risk of bleeding or complications at the insertion site. Refilling the ice pack placed on the insertion site is appropriate for managing potential swelling or discomfort. Filling the patient's pitcher with ice-cold drinking water is a standard care task. Placing an extra pillow under the patient's head upon request is a comfort measure and does not pose a risk to the patient's recovery.
4. The laboratory has just called with the arterial blood gas (ABG) results on four patients. Which result is most important for the nurse to report immediately to the health care provider?
- A. pH 7.34, PaO2 82 mm Hg, PaCO2 40 mm Hg, and O2 sat 97%
- B. pH 7.35, PaO2 85 mm Hg, PaCO2 45 mm Hg, and O2 sat 95%
- C. pH 7.46, PaO2 90 mm Hg, PaCO2 32 mm Hg, and O2 sat 98%
- D. pH 7.31, PaO2 91 mm Hg, PaCO2 50 mm Hg, and O2 sat 96%
Correct answer: D
Rationale: The correct answer is D: pH 7.31, PaO2 91 mm Hg, PaCO2 50 mm Hg, and O2 sat 96%. These ABG results indicate uncompensated respiratory acidosis, a critical condition that requires immediate attention. In respiratory acidosis, there is an excess of carbon dioxide in the blood, leading to a decrease in pH. The other options present normal or near-normal ABG values, indicating adequate oxygenation and ventilation. Therefore, these values would not be as urgent to report compared to the patient with respiratory acidosis in option D.
5. A nurse is educating a patient about bimatoprost (Lumigan) eyedrops for the treatment of Glaucoma. Which of the following indicates that the patient has a correct understanding of the expected outcomes following treatment?
- A. "I should be experiencing less blurriness in my central field of vision"
- B. "This medication won't help my vision at all, but will keep it from getting worse."
- C. "My peripheral vision should be increasing back to its normal state, but will take a few weeks to do so."
- D. "This medication will help my eye restor intraocular fluid and increase intraocular pressure"
Correct answer: B
Rationale: Glaucoma cannot be cured, just treated. Treatment revolves around preventing further deterioration.
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