NCLEX-RN
NCLEX RN Exam Review Answers
1. As a nursing supervisor in a long-term care facility, you prioritize strict infection control prevention measures due to the understanding that the normal aging process weakens the body's defenses. Which theory of aging supports the necessity of strict infection control prevention measures?
- A. The Programmed Longevity Theory
- B. The Immunological Theory of Aging
- C. The Endocrine Theory
- D. The Rate of Living Theory
Correct answer: B
Rationale: The theory of aging that aligns with the need for strict infection control prevention measures is the Immunological Theory of Aging. This theory posits that aging leads to a decline in the body's immune defenses and a reduced ability of antibodies to protect against infections. The other theories do not directly address the impact of aging on the immune system. The Programmed Longevity Theory focuses on genetic changes affecting aging, the Endocrine Theory emphasizes hormonal changes, and the Rate of Living Theory relates longevity to the rate of oxygen metabolism.
2. 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.
3. The clinic nurse teaches a patient with a 42 pack-year history of cigarette smoking about lung disease. Which information will be most important for the nurse to include?
- A. Options for smoking cessation
- B. Reasons for annual sputum cytology testing
- C. Erlotinib (Tarceva) therapy to prevent tumor risk
- D. Computed tomography (CT) screening for lung cancer
Correct answer: A
Rationale: The most critical information for the nurse to provide to a patient with a significant smoking history is options for smoking cessation. Smoking is the primary cause of lung cancer, making smoking cessation essential in reducing the risk of developing the disease. Annual sputum cytology testing is not a standard screening test for lung cancer; instead, CT scanning is being explored for this purpose. Erlotinib therapy is used in lung cancer treatment but not for preventing tumor risk in individuals without cancer. CT screening for lung cancer is still under investigation and is not primarily aimed at prevention but rather early detection in high-risk individuals.
4. A client on lithium has diarrhea and vomiting. What should the nurse do first?
- A. Recognize this as a drug interaction
- B. Give the client Cogentin
- C. Reassure the client that these are common side effects of lithium therapy
- D. Hold the next dose and obtain an order for a stat serum lithium level
Correct answer: D
Rationale: Diarrhea and vomiting are manifestations of lithium toxicity. The priority action for the nurse is to hold the next dose of lithium and obtain an order for a stat serum lithium level to confirm toxicity. This ensures patient safety and prevents further harm. Recognizing it as a drug interaction is not the first step in this scenario. Cogentin is used to manage extrapyramidal symptoms (EPS) associated with antipsychotics, not lithium toxicity. Reassuring the client about these symptoms as common side effects of lithium therapy is inappropriate as they indicate a more serious issue than typical side effects like hand tremors, nausea, polyuria, and polydipsia.
5. A healthcare professional is preparing to draw a blood specimen from an adult client's central line. All of the following actions for this procedure are correct EXCEPT:
- A. Disconnect the current infusion
- B. Clean the cap with alcohol and attach a 5 cc syringe
- C. Draw 5 cc of a blood sample to discard
- D. Flush with saline after the sample
Correct answer: B
Rationale: When drawing a blood specimen from a central line, the healthcare professional should disconnect any infusions that are currently running and that could contaminate the specimen. It is important to use a minimum size of a 10 cc syringe when using a central line to avoid placing too much pressure on the catheter. Cleaning the cap with alcohol and attaching a 5 cc syringe is not appropriate as a larger syringe size should be used for this procedure. Drawing 5 cc of a blood sample to discard and flushing with saline after the sample are correct steps in the process of drawing a blood specimen from a central line.
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