NCLEX-RN
NCLEX RN Practice Questions With Rationale
1. Becky is a 17-year-old type I diabetic who has been admitted for her third episode of diabetic ketoacidosis (DKA) since being diagnosed last year. She states that she hates feeling different from her friends and refuses to take her insulin as recommended. What would be the most helpful action for Becky?
- A. Scolding her for not taking her insulin
- B. Recommending that she use an insulin pump
- C. Contacting the local support group for diabetic teens
- D. Telling her parents they must provide more strict oversight
Correct answer: C
Rationale: Contacting the local support group for diabetic teens would be the most helpful action for Becky. By reaching out to see if another diabetic teenager could provide support, Becky would have the opportunity to connect with someone in her peer group who faces similar challenges. This connection can help reduce her sense of isolation and the feeling of being 'different.' Choice A, 'Scolding her for not taking her insulin,' is inappropriate and could further alienate Becky. It does not address the underlying emotional issues driving her behavior. Choice B, 'Recommending that she use an insulin pump,' does not directly address Becky's emotional struggle with feeling different from her friends. While an insulin pump may be a helpful tool, it does not tackle the root cause of her non-compliance. Choice D, 'Telling her parents they must provide more strict oversight,' focuses on imposing stricter control without addressing Becky's emotional needs or offering peer support, which may not be effective in improving her insulin adherence in the long term.
2. A nurse is assessing a client's pulse oximetry on the surgical unit. As part of routine interventions, the nurse turns off the exam light over the client's bed. Which of the following best describes the rationale for this intervention?
- A. External light sources may cause falsely high oximetry values
- B. A bright light in the client's face may cause a low pulse oximetry
- C. External light sources may cause falsely low oximetry values
- D. The client needs a dark and quiet room to recover and maintain proper oxygenation
Correct answer: A
Rationale: When assessing a client's pulse oximetry values, the nurse should turn off any extra environmental lights that are unnecessary, including exam lights or over-bed lights. External light sources may cause falsely high oximetry values when the extra light interferes with the sensor of the oximeter, leading to inaccurate readings. Choice B is incorrect because a bright light in the client's face would not directly affect the pulse oximetry values. Choice C is incorrect as external light sources typically cause falsely high, not low, oximetry values. Choice D is incorrect as the primary reason for turning off the light is to prevent falsely high readings, not solely for the client's comfort.
3. Plantar flexion can be prevented with ________________.
- A. foot soaks
- B. foot boards
- C. toenail care
- D. proper shoes
Correct answer: B
Rationale: Plantar flexion, or foot drop, can be prevented with foot boards, special splints, and range of motion exercises. Foot boards help maintain the foot in a neutral position, preventing contractures and deformities. Foot soaks (choice A) may help with foot hygiene but do not directly prevent plantar flexion. Toenail care (choice C) is important for overall foot health but does not prevent plantar flexion. Proper shoes (choice D) are essential for foot support and comfort but do not specifically prevent plantar flexion.
4. You are caring for a group of elderly clients, many of whom are affected by multiple chronic disorders and are also, at times, affected by some acute disorders that require medical and nursing attention. As you are caring for these clients, some will need a new medication regimen for an acute disorder. You should consider the fact that the elderly population is at risk for more side effects, adverse drug reactions, and toxicity due to the elderly having a(n):
- A. Increased creatinine clearance.
- B. Impaired immune system.
- C. Decreased hepatic metabolism.
- D. Increased bodily fat
Correct answer: C
Rationale: The correct answer is 'Decreased hepatic metabolism.' The elderly population is at risk for more side effects, adverse drug reactions, and toxicity due to a decrease in hepatic metabolism. This is caused by changes in hepatic functioning in the elderly, including decreased hepatic blood flow and functioning. Choice A, 'Increased creatinine clearance,' is incorrect as aging typically results in decreased, not increased, creatinine clearance. Choice B, 'Impaired immune system,' is not directly related to the increased risk of adverse drug reactions in the elderly. Choice D, 'Increased bodily fat,' is not a primary factor contributing to the increased risk of medication-related issues in the elderly population.
5. A client with adrenal insufficiency has a potassium level of 7.2 mEq/L. Which of the following signs or symptoms might the client exhibit with this result?
- A. Peaked T waves on the ECG
- B. Muscle spasms
- C. Constipation
- D. A prominent U wave on the ECG
Correct answer: A
Rationale: A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability. Muscle spasms (Choice B) are more commonly associated with hypocalcemia. Constipation (Choice C) is not a typical sign of hyperkalemia. A prominent U wave on the ECG (Choice D) is associated with hypokalemia, not hyperkalemia.
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