research participants are involved in a trial that incidentally separates them into two groups one group receives an intervention while the other grou
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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?

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. Which of the following interventions is necessary before insertion of an arterial line into the radial artery?

Correct answer: C

Rationale: Before inserting an arterial line into the radial artery, it is crucial to perform an Allen test. The Allen test assesses the collateral circulation to the hand by compressing both the radial and ulnar arteries. By occluding the radial artery and releasing the ulnar artery, the nurse can check if the ulnar artery can adequately supply blood to the hand if the radial artery is cannulated. This step ensures that there is adequate circulation to the hand post-insertion of the arterial line. Choice A, ensuring that the client does not need surgery, is not directly related to the insertion of an arterial line and is not a necessary step before the procedure. Choice B, assessing grip strength, is not specific to the vascular status of the hand and does not provide information about the adequacy of collateral circulation. Choice D, checking a serum potassium level, is unrelated to the assessment of radial artery patency and collateral circulation, which are the primary concerns before arterial line insertion.

3. While planning care for a toddler, the nurse teaches the parents about the expected developmental changes for this age. Which statement by the mother shows that she understands the child's developmental needs?

Correct answer: C

Rationale: The correct answer is: "I understand the need to use those new skills."? This response indicates that the mother recognizes the importance of allowing the toddler to practice and develop new skills, supporting autonomy and exploration. Setting limits, protecting from falls, and intending to keep control go against the toddler's developmental needs. Toddlers at this stage require opportunities to explore, practice new skills, and gain independence to foster healthy development.

4. A client is being monitored for decreased tissue perfusion and increased risk of skin breakdown. Which measure best improves tissue perfusion in this client?

Correct answer: B

Rationale: For a client at risk of impaired skin integrity due to decreased tissue perfusion, improving mobility is crucial to enhance tissue perfusion and prevent skin breakdown. Range of motion exercises are beneficial to increase circulation and prevent complications. Massaging reddened areas may further damage fragile skin. Administering antithrombotics may be necessary for specific conditions but does not directly address tissue perfusion. Feeding a high-carbohydrate diet does not directly improve tissue perfusion in this context.

5. Mrs. M has had diabetes for seven years. She has worked hard to control her blood glucose levels and watch her dietary intake. Her physician orders a hemoglobin A1C test. Which of the following best describes the action of this test?

Correct answer: D

Rationale: A hemoglobin A1C test, also known as a glycated hemoglobin test, determines the amount of hemoglobin that is coated with glucose. Excess glucose in the bloodstream may cause it to attach to hemoglobin on red blood cells. Because the life of these cells is between 2 and 3 months, the hemoglobin A1C is an accurate measurement of a client's glucose during that time. Choices A, B, and C are incorrect. Choice A relates to anemia and iron supplements, which are not assessed by a hemoglobin A1C test. Choice B mentions excess glucose in the urine, which is typically assessed through a urine glucose test, not the hemoglobin A1C test. Choice C is incorrect as the test is not related to the amount of hemoglobin reaching the liver to support gluconeogenesis; instead, it specifically measures the amount of hemoglobin that is glycated or coated with glucose.

Similar Questions

You are attempting to teach the wife of a Greek patient how to administer his gastrostomy tube feedings once he returns home. She smiles and nods through your explanations, but when you ask her for a return demonstration, she looks confused and shakes her head. Her daughter enters the room and states that she does not speak English. What would be most helpful in this situation?
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