the smallest of the white blood cells which also can be involved in humoral immunity is the
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Nursing Elites

NCLEX-RN

Exam Cram NCLEX RN Practice Questions

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

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 healthcare professional needs to validate which of the following statements pertaining to an assigned client?

Correct answer: C

Rationale: Validation is the process of confirming that data are actual and factual. Data that can be measured can be accepted as factual, as in options 1, 3, and 4. The weight, blood pressure, and physical appearance of a lesion can be objectively verified. However, option C, the client reporting an infected toe, requires the nurse to directly assess the client's toe to confirm the statement. This choice involves subjective data that needs to be validated through direct observation, making it the correct answer. Options A, B, and D provide data that can be measured objectively and verified without the need for further assessment.

3. What action by the nurse will be most effective in decreasing the spread of pertussis in a community setting?

Correct answer: C

Rationale: The most effective action by the nurse to decrease the spread of pertussis in a community setting is to teach patients about the necessity of adult pertussis immunizations. The increased rate of pertussis in adults is often attributed to waning immunity after childhood immunization. Immunization is highly effective in protecting communities from infectious diseases. While teaching about handwashing is important for overall infection control, pertussis is primarily spread through respiratory droplets and contact with secretions. Providing supportive care does not significantly impact the disease course or transmission risk. Encouraging completion of antibiotics may help reduce transmission, but patients likely have already spread the disease by the time the diagnosis is made. Therefore, the emphasis should be on prevention through immunization to reduce the spread of pertussis.

4. A client is refusing to undergo any more treatments in the hospital and wants to leave against medical advice. When the nurse requests the client to sign an AMA order, the client refuses and leaves. What is the next action of the nurse?

Correct answer: D

Rationale: The nurse cannot force the client to stay in the hospital to receive treatment or to sign an AMA order. It is essential to respect the client's autonomy and decision-making capacity. While involving security or pressuring the client through the physician or spouse may seem like options, they are not appropriate in this situation. The nurse should allow the client to leave if they are competent to make that decision, document the refusal in the client's chart to ensure all actions are appropriately documented, and follow institutional policies for patients leaving against medical advice.

5. What does the 'B' in the SBAR acronym stand for?

Correct answer: A

Rationale: The 'B' in the SBAR acronym stands for Background. SBAR is a standardized communication tool used in healthcare to effectively communicate critical information. In this context, 'Background' refers to providing relevant information about the patient's history, current status, and any other pertinent details. This information helps ensure clear and concise communication between healthcare providers, enhancing patient care. Choice B, 'Basic,' is incorrect as the 'B' specifically emphasizes the detailed background information. Choices C and D, 'Beginning' and 'Break,' are not accurate in the context of the SBAR communication tool.

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