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. An occupational health nurse works at a manufacturing plant where there is potential exposure to inhaled dust. Which action, if recommended by the nurse, will be most helpful in reducing the incidence of lung disease?

Correct answer: C

Rationale: Prevention of lung disease requires the use of appropriate protective equipment such as masks to reduce exposure to inhaled dust, which is a significant risk factor for lung disease. Teaching about symptoms of lung disease, treating workers with pulmonary fibrosis, and monitoring for coughing and wheezing are important actions for early recognition and treatment of lung disease. However, the most effective strategy to prevent lung damage in this scenario is to require the use of protective equipment to minimize exposure to harmful substances.

3. The discharge planning team is discussing plans for the dismissal of a 16-year-old admitted for complications associated with asthma. The client's mother has not participated in any of the discharge planning processes but has stated that she wants to be involved. Which of the following reasons might prohibit this mother from participating in discharge planning?

Correct answer: A

Rationale: In this scenario, the correct answer is that the client is an emancipated minor. Emancipated minors, even if they are under the age of 18, have the legal right to make decisions about their own healthcare and planning, which may include not wanting their parent involved in the discharge planning process. This status grants them independence from parental involvement in certain situations. The other choices are incorrect because the mother's work schedule, the client's job and possession of a driver's license, and the mother's language proficiency do not inherently prevent her from participating in the discharge planning process, unlike the legal status of being an emancipated minor.

4. Which of the following tasks may be delegated to unlicensed assistive personnel?

Correct answer: C

Rationale: Certain tasks can be safely delegated to unlicensed assistive personnel to assist nurses in their workload. Tasks that involve routine activities like incentive spirometry can be delegated. Unlicensed assistive personnel can assist clients with incentive spirometry, helping in promoting lung expansion and preventing respiratory complications. Cleansing a wound with peroxide (Choice A) and irrigating a colostomy (Choice B) involve more complex procedures that should be performed by licensed healthcare providers due to the risk of infection and potential complications. Removing a saline-lock IV (Choice D) requires specialized training and should only be performed by licensed personnel to prevent complications and ensure patient safety. The nurse remains responsible for delegating tasks appropriately and overseeing the care provided by unlicensed assistive personnel.

5. Which of the following situations might warrant a laboratory magnesium level?

Correct answer: C

Rationale: Ulcerative colitis can lead to symptoms such as abdominal pain, fever, diarrhea, and weight loss. This condition may impact the absorption of certain nutrients, including magnesium. Therefore, patients with chronic gastrointestinal conditions like ulcerative colitis should be screened for electrolyte imbalances related to impaired digestion. Hyperthyroidism, arthritis, and depression do not typically directly affect magnesium levels in the same way as gastrointestinal conditions like ulcerative colitis.

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