NCLEX-RN
Saunders NCLEX RN Practice Questions
1. Research participants are involved in a trial that incidentally separates them into two groups. One group receives an intervention, while the other group does not. Both groups are compared for outcomes. What type of research method is this?
- A. Experimental design
- B. Double-blind experiment
- C. Randomized controlled trial
- D. Repeated measures design
Correct answer: C
Rationale: A randomized controlled trial is a research method in which participants are randomly assigned to either a treatment or control group. This design helps eliminate bias and allows for the comparison of outcomes between the two groups. In this scenario, where participants are separated into intervention and non-intervention groups for comparison, it aligns with the characteristics of a randomized controlled trial. The key feature distinguishing it from the other options is the random assignment of participants to groups, ensuring that both groups are comparable at the start of the study. Double-blind experiments involve blinding both participants and researchers to treatment allocation, which is not explicitly mentioned in the scenario. Experimental design refers to a broader category that includes various types of research designs beyond just randomized controlled trials. Repeated measures design involves collecting multiple observations from the same participants over time, which is not the case described in the scenario.
2. 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.
3. 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.
4. A physician is explaining a procedure to a patient that may cure her recurring Staph infection. The doctor explains how the procedure is done, what to expect, the odds of the procedure curing the infection, and possible side effects and risks. The physician is:
- A. Preparing the patient to give informed consent.
- B. Protecting HIPAA by listing all the steps of the procedure with the risks involved.
- C. Not required to inform the patient of any alternative therapies.
- D. None of the above.
Correct answer: A
Rationale: The correct answer is preparing the patient to give informed consent. Giving informed consent is the process of providing a patient with all necessary information about a medical procedure, including how it's done, what to expect, the likelihood of success, and potential risks and side effects. This allows the patient to make an informed decision about their treatment. Protecting HIPAA (Health Insurance Portability and Accountability Act) involves safeguarding patient health information and is not directly related to the scenario described. It is important for physicians to inform patients of any alternative therapies available to them to ensure they have all relevant information to make a decision regarding their treatment. Therefore, choice C, 'Not required to inform the patient of any alternative therapies,' is incorrect. Choice D, 'None of the above,' is incorrect as the physician is indeed preparing the patient for informed consent.
5. 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.
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