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. You are on the unit and overhear another nurse talking on the phone to a patient's friend who wants to see her patient who is comatose and on a ventilator. Since you cared for that patient yesterday, you know that the patient's significant other, who is also the designated healthcare surrogate (HCS) and has power of attorney (POA), has expressly stated that he wants this person on the list for restricted visitors. The nurse whispers that she'll call him to visit as soon as the significant other has gone home. What should your first response be?

Correct answer: C

Rationale: Speaking with the nurse directly and privately is the most constructive manner in which to handle this situation and advocate for the significant other's wishes. Doing so will open communication with a peer and build the relationship, instead of alienating the other nurse by taking action that does not involve her and will cast her in a negative light with others. It is essential to express your concerns regarding honoring the significant other's requests and rights regarding the limitation of visitors. Option A is incorrect because the significant other is not the one trying to visit, and it is more appropriate to address the nurse directly first. Option B is not the best initial response as it may escalate the situation without giving the nurse a chance to correct the issue. Option D is incorrect as it does not address the issue at its source and may create further conflict without resolving the underlying problem.

3. A client has been administered ketamine by a physician in preparation for general anesthesia. Which of the following side effects should the nurse monitor for in this client?

Correct answer: A

Rationale: Ketamine is an anesthetic that induces dissociation and lack of awareness in a client. It can be used before general anesthesia or during short procedures for sedation. Ketamine may lead to side effects such as delirium, hallucinations, hypertension, and respiratory depression. Therefore, the nurse should monitor the client for delirium, as it is a potential side effect associated with ketamine use. Muscle rigidity, hypotension, and pinpoint rash are not typically attributed to ketamine administration and are less likely to occur in this scenario.

4. Which of the following is an example of whistle-blowing?

Correct answer: A

Rationale: Whistle-blowing involves notifying administration or a supervisor about unethical or illegal activities. In this scenario, the nurse reporting a colleague taking supplies for personal use is an example of whistle-blowing as it involves reporting behavior that is dishonest and potentially harmful. Choices B, C, and D do not represent whistle-blowing. Choice B involves a legal action by a client against a nurse, choice C is a situation where immediate care is provided, and choice D is a case of neglect that should have been prevented.

5. Mrs. F has been diagnosed with hyperparathyroidism. Which of the following complications is Mrs. F at highest risk of developing?

Correct answer: D

Rationale: The parathyroid glands regulate calcium, vitamin D, and phosphorus in the body. Hyperparathyroidism leads to excessive production of parathyroid hormone, causing the release of calcium from bones into the bloodstream, resulting in elevated blood calcium levels, known as hypercalcemia. This puts individuals at risk of developing complications such as kidney stones, bone pain, osteoporosis, and neuropsychiatric symptoms. The other options, hyponatremia, hypocalcemia, and hypermagnesemia, are not directly associated with hyperparathyroidism. Hyponatremia is low sodium levels in the blood, hypocalcemia is low calcium levels, and hypermagnesemia is high magnesium levels, which are not typically seen in hyperparathyroidism.

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