a nurse is assessing a clients pulse oximetry on the surgical unit as part of routine interventions the nurse turns off the exam light over the client

NCLEX-RN

Health Promotion and Maintenance NCLEX RN Questions

1. 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.

2. A 58-year-old client is being tested for rheumatoid arthritis. Her physician orders an erythrocyte sedimentation rate (ESR). Which of the following results is most likely to be associated with arthritis?

A. 5 mm/hr
B. 12 mm/hr
C. 28 mm/hr
D. 40 mm/hr

Correct answer: D

Rationale: The erythrocyte sedimentation rate (ESR) measures levels of inflammation in the body. Elevated ESR levels are commonly seen in autoimmune conditions like rheumatoid arthritis due to the presence of inflammation. In women over 50 years old, a normal ESR is typically below 30 mm/hr. Therefore, a result of 40 mm/hr is more indicative of arthritis in a 58-year-old individual. Choices A, B, and C are below the normal ESR range for a woman of this age and would not be as strongly associated with arthritis.

3. In which of the following examples would informed consent not be required?

A. A patient is apprehensive about an upcoming surgery and chooses not to learn of the risks involved with the procedure.
B. A child is rushed to the Emergency Room after falling from a third-story window.
C. An adult in a coma in a mental health institution with no listed next of kin.
D. Informed consent is not required in any of the above examples.

Correct answer: D

Rationale: In emergency situations where immediate treatment is necessary to prevent further harm or save a life, such as in option B where a child is rushed to the Emergency Room after a fall, informed consent may be waived to provide prompt care. In option A, though the patient is apprehensive about surgery and chooses not to learn the risks, informed consent is not required as it is the patient's right to refuse information. In option C, when an adult is in a coma with no next of kin listed, decisions may be made in the patient's best interest following legal and ethical guidelines. Therefore, informed consent is not needed in any of the scenarios presented.

4. 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.

5. If a healthcare professional prevents intentional harm from occurring to a patient, which ethical principle is being supported?

A. Beneficence
B. Nonmaleficence
C. Justice
D. Fidelity

Correct answer: B

Rationale: The correct answer is Nonmaleficence. Nonmaleficence is the ethical principle that emphasizes the obligation to avoid causing harm intentionally. In this scenario, by preventing intentional harm to a patient, the healthcare professional is upholding the principle of nonmaleficence. Beneficence, although important, focuses on doing good and promoting well-being rather than solely preventing harm. Justice relates to fairness and equality in resource distribution, while fidelity involves being faithful and keeping promises, which are not directly applicable to the situation of preventing intentional harm to a patient.