NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. Which of the following factors may alter the level of consciousness in a patient?
- A. Alcohol
- B. Electrolytes
- C. Infection
- D. All of the above may cause altered level of consciousness
Correct answer: D
Rationale: Various factors can lead to altered levels of consciousness in a patient. Alcohol consumption can depress the central nervous system and cause changes in consciousness. Electrolyte imbalances, such as hyponatremia or hypernatremia, can disrupt brain function and affect consciousness. Infections, especially those affecting the brain like encephalitis, can also lead to alterations in consciousness. Therefore, all of the choices provided - Alcohol, Electrolytes, and Infection - can potentially cause changes in the level of consciousness. Remember the acronym AEIOU-TIPPS to recall common causes of decreased level of consciousness, including Alcohol, Electrolytes, and Infection, among others.
2. A 23-year-old has been admitted with acute liver failure. Which assessment data are most important for the nurse to communicate to the healthcare provider?
- A. Asterixis and lethargy
- B. Jaundiced sclera and skin
- C. Elevated total bilirubin level
- D. Liver 3 cm below costal margin
Correct answer: A
Rationale: The most critical assessment data for the nurse to communicate to the healthcare provider in a patient with acute liver failure are asterixis and lethargy. These findings are indicative of grade 2 hepatic encephalopathy, which signals a rapid deterioration in the patient's condition, necessitating early transfer to a transplant center. Jaundiced sclera and skin, elevated total bilirubin level, and a liver 3 cm below the costal margin are all typical findings in hepatic failure but do not indicate an immediate need for a change in the therapeutic plan. Therefore, while these findings are relevant and should be reported, they are not as urgent as asterixis and lethargy in a patient with acute liver failure.
3. The nurse is performing tuberculosis (TB) skin tests in a clinic that has many patients who have immigrated to the United States. Which question is most important for the nurse to ask before the skin test?
- A. Is there any family history of TB?
- B. How long have you lived in the United States?
- C. Do you take any over-the-counter (OTC) medications?
- D. Have you received the bacille Calmette-Guerin (BCG) vaccine for TB?
Correct answer: D
Rationale: It is crucial for the nurse to inquire about whether the patient has received the bacille Calmette-Guerin (BCG) vaccine for TB before performing the skin test. Patients who have received the BCG vaccine can have a positive Mantoux test, leading to the need for alternative screening methods, such as a chest x-ray, to determine TB infection. While family history of TB and length of time in the United States are relevant factors, they do not directly impact the decision to perform the TB skin test. Asking about over-the-counter medications, unless relevant to TB treatment, is not as critical as assessing BCG vaccination status.
4. The nurse is caring for a client with a serum potassium level of 3.5 mEq/L. The client is placed on a cardiac monitor and receives 40 mEq potassium chloride in 1000 ml of 5% dextrose in water IV. Which of the following EKG patterns indicates to the nurse that the infusions should be discontinued?
- A. Narrowed QRS complex
- B. Shortened "PR"? interval
- C. Tall peaked "T"? waves
- D. Prominent "U"? waves
Correct answer: C
Rationale: A tall peaked T wave is a characteristic EKG pattern associated with hyperkalemia. Hyperkalemia refers to high levels of potassium in the blood, which can lead to cardiac arrhythmias and other serious complications. Tall peaked T waves are a red flag for potential cardiac issues and can indicate the need to discontinue potassium infusions. The other choices, such as narrowed QRS complex, shortened "PR"? interval, and prominent "U"? waves, are not typically associated with hyperkalemia. Therefore, recognizing tall peaked T waves is crucial for the nurse to take prompt action in managing the client's condition.
5. The nursing care plan for a toddler diagnosed with Kawasaki Disease (mucocutaneous lymph node syndrome) should be based on the high risk for development of which problem?
- A. Chronic vessel plaque formation
- B. Pulmonary embolism
- C. Occlusions at the vessel bifurcations
- D. Coronary artery aneurysms
Correct answer: A
Rationale: The correct answer is chronic vessel plaque formation. Kawasaki Disease affects small and medium-sized blood vessels, leading to progressive inflammation and potential damage to the walls of medium-sized muscular arteries, which can result in coronary artery aneurysms. While other complications such as pulmonary embolism and occlusions at vessel bifurcations can occur in different conditions, for Kawasaki Disease, the primary concern is the development of chronic vessel plaque formation.
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