Nursing Elites

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. The client has a long leg cast. During discharge teaching about appropriate exercises for the affected extremity, the nurse should recommend:

• A. Isometric
• B. Range of motion
• C. Aerobic
• D. Isotonic

Correct answer: D

Rationale: The nurse should recommend isometric exercises for the muscles of the casted extremity. Isometric exercises involve contracting and relaxing muscles without moving the affected part. This type of exercise helps maintain muscle strength without moving the joint, which is important for clients with immobilized extremities. Range of motion exercises involve moving the joint through its full range of motion, which may not be suitable for a client with a long leg cast. Aerobic exercises focus on increasing cardiovascular endurance and may not be appropriate for a client with a casted extremity. Isotonic exercises involve muscle contractions with movement, which may not be safe for the affected extremity in a cast.

3. A client is having blood tests and has an elevated lymphocyte level. Based on knowledge of cellular components, what does the nurse know about these cells?

• A. Contain histamine and provide protection during allergic reactions
• B. Are involved in phagocytosis
• C. Provide protection and immunity against foreign substances
• D. Carry hemoglobin and oxygen to body tissues

Correct answer: C

Rationale: Lymphocytes are a type of white blood cells that play a crucial role in supporting the body's immune system. They are responsible for producing substances that protect the body against infections and foreign substances that could potentially harm the client. Lymphocytes consist of two main types: T cells, which are produced in the thymus, and B cells, which are produced in the lymphatic tissue. Choice A is incorrect because histamine is mainly associated with basophils and mast cells, not lymphocytes. Choice B is incorrect as phagocytosis is a function of other white blood cells such as neutrophils and macrophages. Choice D is also incorrect as carrying hemoglobin and oxygen is a function of red blood cells, not lymphocytes.

4. Which of the following clients is most likely ready to be dismissed from an inpatient care setting to home?

• A. A 65-year old male with urine output of 60cc in the past four hours
• B. A 2-month old female with a temperature of 100.6 rectally
• C. A 38-year old female who transitioned from IV TPN to full liquids six hours ago
• D. A 4-year old male with an oxygen saturation of 96% on room air

Correct answer: D

Rationale: Clients must meet a certain amount of set criteria before they will be discharged from a healthcare facility. Although guidelines may vary between locations, most healthcare facilities expect clients to have adequate oxygenation, nutrition, and elimination; and be free from fever, vomiting, and significant pain

5. The family of a patient who is receiving therapeutic hypothermia states they do not understand why the patient is being kept so cold. What objective information can you provide to help address their concerns?

• A. Let them talk to another patient who has had the same therapy
• B. Provide research-based information about therapeutic hypothermia
• C. Connect them with the nurse manager
• D. Call the physician and ask him to talk to the family

Correct answer: B

Rationale: Providing research-based information about the benefits of therapeutic hypothermia for their loved one will provide evidence that this is an established therapy with generally positive outcomes. Families are certainly not expected to be familiar with critical care interventions, and their concerns should be addressed with evidence-based data whenever possible. Option A is not appropriate as sharing patient information violates privacy laws and does not address the family's concerns directly. Option C may not directly provide the detailed information the family needs to understand therapeutic hypothermia. Option D involves unnecessary escalation by immediately involving the physician, when providing education and information should be the initial step in addressing the family's concerns.

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