Nursing Elites

1. Which of the following white blood cells is the smallest and can be involved in humoral immunity?

• A. Lymphocyte
• B. Monocyte
• C. Basophil
• D. Erythrocyte

Correct answer: A

Rationale: The correct answer is 'Lymphocyte.' Lymphocytes are the smallest type of white blood cells and play a crucial role in humoral immunity by producing antibodies. Monocytes are actually the largest white blood cells and are involved in phagocytosis rather than humoral immunity. Basophils are a type of granulocyte involved in allergic reactions, and erythrocytes are red blood cells responsible for oxygen transport, not part of the immune system.

2. The nurse is providing disease prevention education to a 63-year-old woman with a negative family history of breast cancer. The nurse recommends the patient schedule mammograms with which frequency?

• A. Every 5 years
• B. Every 10 years
• C. Every other year
• D. Once a year

Correct answer: C

Rationale: Mammograms, along with breast self-examinations and other routine tests, are key for the early diagnosis and treatment of breast cancer. All major societies (WHO, ACS, USPSTF) recommend a screening mammogram every two years in women of this age at average risk of breast cancer. The recommended frequency may change if there are identified family history and significant risk factors. Choosing 'Once a year' is too frequent and not aligned with current guidelines. Opting for 'Every 5 years' or 'Every 10 years' intervals is not adequate for regular breast cancer screening and may increase the risk of cancer progression. Therefore, 'Every other year' is the most appropriate choice for this patient without a family history of breast cancer.

3. An adolescent brings a physician's note to school stating that he is not to participate in sports due to a diagnosis of Osgood-Schlatter disease. Which of the following statements about the disease is correct?

• A. The condition is not caused by the student's competitive swimming schedule.
• B. The student will most likely not require surgical intervention.
• C. The student experiences pain in the inferior aspect of the knee.
• D. The student is not trying to avoid participation in physical education.

Correct answer: C

Rationale: Osgood-Schlatter disease occurs in adolescents during the rapid growth phase when the infrapatellar ligament of the quadriceps muscle pulls on the tibial tubercle, causing pain and swelling in the inferior aspect of the knee. The condition is commonly caused by activities that require repeated use of the quadriceps, such as track and soccer. Choice A is incorrect because Osgood-Schlatter disease is not specifically linked to competitive swimming. Choice B is incorrect as surgical intervention is not usually necessary for this condition. Choice D is incorrect as the student is not trying to avoid physical education but is restricted from participating in sports due to the diagnosis of Osgood-Schlatter disease.

4. A writer is admitted for the second time accompanied by his wife. He is demanding, arrogant, talks fast, and is hyperactive. Initially, the nurse should plan this for a manic client:

• A. Set realistic limits to the client's behavior
• B. Repeat verbal instructions as often as needed
• C. Allow the client to express feelings to relieve tension
• D. Assign a staff member to be with the client at all times to help maintain control

Correct answer: A

Rationale: For a manic client who is demanding, arrogant, talks fast, and is hyperactive, setting realistic limits to the client's behavior is essential to ensure safety as manic clients may engage in injurious activities. A quiet environment and consistent, firm limits help to maintain control. While repeating verbal instructions may be necessary due to distractibility, it is not the priority compared to setting limits for safety. Allowing the client to express feelings is important, but only non-destructive methods of expression should be permitted. Assigning a staff member to be with the client at all times is not a realistic approach as it may not always be feasible or necessary for managing manic behavior effectively.

5. 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.

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