the smallest of the white blood cells which also can be involved in humoral immunity is the
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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. You are caring for a Hispanic patient who is scheduled for surgery in the morning. A member of the surgery staff is in a hurry when she visits the patient to obtain surgical consent. You know that the patient speaks limited English and can see that he does not really understand what's being said. What is the most appropriate next action?

Correct answer: B

Rationale: Consulting the hospital translator is the most reliable means of ensuring accuracy in the information that the patient is receiving. Family members can be helpful, but they may have difficulty understanding the medical procedures well enough to explain them accurately and may misinterpret the message. Relying on family members could lead to misunderstandings or miscommunication. Allowing the consent to be signed without ensuring the patient's full understanding could pose risks to the patient's well-being. Asking the staff member to come back later delays the essential communication process needed before surgery. Therefore, consulting the hospital translator is the best course of action to ensure clear and accurate communication, especially in critical healthcare decisions like surgical consent.

3. Which of the following is an example of effective time management?

Correct answer: D

Rationale: Effective time management involves strategies that help individuals focus and complete tasks efficiently. Working in a secluded area to minimize interruptions is an example of effective time management as it allows for concentration and productivity without distractions. Choices A, B, and C are not examples of effective time management. Always agreeing to others' requests for help can lead to overcommitment and time mismanagement. Arranging long meetings can be counterproductive as they consume time that could be used for actual work. Using multiple forms of technology, though helpful, can lead to information overload and inefficiency if not managed properly. Therefore, the most effective choice for optimal time management in this scenario is working in a secluded area to minimize interruptions.

4. A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but the diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability.

Correct answer: B

Rationale: A lumbar puncture is performed to obtain cerebrospinal fluid for analysis to investigate various conditions affecting the client. During the procedure, the client is typically positioned on their side or sitting leaning over a table with their back rounded. The physician inserts a needle into the back around the L4-L5 vertebrae to collect the sample. Option A is incorrect because a lumbar puncture does not draw blood but instead collects cerebrospinal fluid. Option C is incorrect as the client should not necessarily lie flat for 24 hours post-procedure. Option D is incorrect as the common risks of a lumbar puncture include headache, back pain, and potential infection, not nausea, rash, or hypotension.

5. A patient is being seen in the crisis unit reporting that poison letters are coming in the mail. The patient has no history of psychiatric illness. Which group of the following medications would the patient most likely be started on?

Correct answer: A

Rationale: In this scenario, where a patient without a history of psychiatric illness is experiencing psychotic symptoms like believing in poison letters, the most suitable medication group to start the patient on would be atypical antipsychotics. Aripiprazole (Abilify) belongs to this group and is preferred due to its efficacy with fewer side effects compared to conventional antipsychotics. Risperidone (Risperdal Consta) is also an atypical antipsychotic but is usually indicated after stabilizing the patient with oral medications. Fluphenazine (Prolixin) is a conventional antipsychotic, which is less favored due to its side effect profile. Fluoxetine (Prozac) is an antidepressant and is not the first-line treatment for psychotic symptoms.

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