Nursing Elites

1. Which of the following mediators of inflammation causes increased capillary permeability and pain?

• A. Serotonin
• B. Histamine
• C. Bradykinin
• D. Nitric oxide

Correct answer: C

Rationale: Bradykinin is the correct answer. It is a potent mediator of inflammation that causes increased capillary permeability and is responsible for the pain associated with inflammation. Serotonin and histamine are also mediators of inflammation, but they are not primarily known for increasing capillary permeability or inducing pain. Nitric oxide is involved in various physiological processes but is not a primary mediator of inflammation that causes increased capillary permeability and pain.

2. After studying about viruses, which information indicates the student has a good understanding of viruses? Viruses:

• A. Contain no RNA or DNA
• B. Are capable of independent reproduction
• C. Replicate their genetic material inside host cells
• D. Are killed easily by antimicrobials

Correct answer: C

Rationale: The correct answer is C. Viruses replicate their genetic material inside host cells, which is a fundamental aspect of their life cycle. Choice A is incorrect because viruses contain either RNA or DNA. Choice B is incorrect as viruses cannot reproduce independently and rely on host cells for replication. Choice D is incorrect as viruses are not easily killed by antimicrobials due to their unique structure and mechanisms of infection.

3. Which scenario would be an example of a child born with congenital insensitivity to pain?

• A. A child who does not cry when injured and fails to respond to painful stimuli.
• B. A child who cries excessively and has a heightened response to pain.
• C. A child who experiences pain but has difficulty expressing it.
• D. A child who is sensitive to minor stimuli but has a delayed response to severe pain.

Correct answer: A

Rationale: The correct scenario depicting a child with congenital insensitivity to pain is when the child does not cry when injured and fails to respond to painful stimuli. This condition is characterized by the inability to feel and react to pain, resulting in a lack of typical responses such as crying or withdrawal when hurt. Choice B is incorrect as it describes a child with heightened pain sensitivity, opposite to the insensitivity seen in the condition. Choice C is incorrect as it suggests the child feels pain but struggles to communicate it, which is not the case with congenital insensitivity to pain. Choice D is incorrect as it describes a child who is sensitive to minor stimuli and has delayed responses to severe pain, which is not indicative of congenital insensitivity to pain.

4. The nurse is closely following a patient who began treatment with testosterone several months earlier. When assessing the patient for potential adverse effects of treatment, the nurse should prioritize which of the following assessments?

• A. Skin inspection for developing lesions
• B. Lung function testing
• C. Assessment of serum calcium levels
• D. Assessment of arterial blood gases

Correct answer: C

Rationale: In patients receiving testosterone therapy, the nurse should prioritize assessing serum calcium levels. Testosterone therapy can lead to hypercalcemia, making the evaluation of serum calcium levels crucial. Skin inspection for developing lesions, lung function testing, and arterial blood gas assessment are not the priority assessments for potential adverse effects of testosterone therapy. Skin inspection may be relevant for dermatological side effects, lung function testing and arterial blood gas assessment are not directly related to the common side effects of testosterone therapy.

5. Which of the following is an example of a Type 1 hypersensitivity reaction?

• A. Anaphylaxis
• B. Indigestion
• C. Beta cell destruction
• D. ABO transfusion reaction

Correct answer: A

Rationale: Anaphylaxis is a classic example of a Type 1 hypersensitivity reaction. In Type 1 hypersensitivity, allergens trigger an immediate immune response mediated by IgE antibodies, leading to the release of histamine and other mediators. This reaction can result in symptoms ranging from mild itching and hives to severe conditions like anaphylaxis, which is a life-threatening emergency. The other options, such as indigestion (choice B), beta cell destruction (choice C), and ABO transfusion reaction (choice D), are not classified as Type 1 hypersensitivity reactions. Indigestion is typically related to gastrointestinal disturbances, beta cell destruction is associated with autoimmune conditions like type 1 diabetes, and ABO transfusion reaction involves antibodies targeting incompatible blood groups, which is a different immune mechanism compared to Type 1 hypersensitivity.

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