Nursing Elites

1. What is a cavity containing pus surrounded by inflamed tissue?

• A. Cellulitis.
• B. An abscess.
• C. Extravasation.
• D. An adhesion.

Correct answer: B

Rationale: An abscess is defined as a cavity containing pus surrounded by inflamed tissue. Cellulitis is a bacterial skin infection causing redness and swelling, not a cavity. Extravasation is the leakage of fluid from a vessel into surrounding tissues, not a cavity. An adhesion is a band of scar-like tissue that binds two parts together, not a cavity containing pus and inflamed tissue.

2. The wound irrigation process cleanses the wound and:

• A. Reduces the potential pain in the wound region or area.
• B. Stops the spread of infection by creating a 'clean' area.
• C. Pushes extravasated blood from a hematoma into nearby healthy tissue.
• D. Allows for the introduction of medications in solution form.

Correct answer: D

Rationale: The correct answer is D because wound irrigation allows for the introduction of medications in solution form to the wound site. Choice A is incorrect because while wound irrigation can help with pain management indirectly by promoting healing, its primary purpose is not to reduce pain directly. Choice B is incorrect as wound irrigation primarily aims to cleanse the wound and remove contaminants rather than creating a 'clean' area to stop infection spread. Choice C is incorrect because wound irrigation does not involve pushing extravasated blood from a hematoma into nearby healthy tissue; its main goal is to cleanse the wound and promote healing.

3. A nurse caring for a group of clients reviews the electrolyte laboratory results and notes a sodium level of 130 mEq/L on one client's laboratory report. The nurse understands that which client is at highest risk for the development of a sodium value at this level?

• A. The client with renal failure
• B. The client who is taking diuretics
• C. The client with hyperaldosteronism
• D. The client who is taking corticosteroids

Correct answer: B

Rationale: The correct answer is B. Clients taking diuretics are at risk for hyponatremia due to excessive sodium loss. In this scenario, a sodium level of 130 mEq/L indicates hyponatremia, which is commonly associated with diuretic use. Options A, C, and D are not the highest risk factors for developing low sodium levels in this context. Renal failure, hyperaldosteronism, and corticosteroid use are not directly linked to sodium loss as seen with diuretics.

4. Select the stage of shock that is accurately paired with its characteristic.

• A. The initial stage of shock: Hyperventilation occurs and the blood pH rises.
• B. The compensatory stage of shock: Hypoxia occurs and lactic acid rises.
• C. The progressive stage of shock: Histamine is released; fluid and proteins leak into surrounding tissues and the blood thickens.
• D. The refractory stage of shock: Potassium ions leak out; sodium ions build up, and metabolic acidosis increases.

Correct answer: C

Rationale: The progressive stage of shock is accurately described as the stage where histamine is released, leading to fluid and proteins leaking into surrounding tissues and the blood thickening. In this stage, the body's compensatory mechanisms are overwhelmed, resulting in a cascade of events that worsen the shock state. Choice A is incorrect as hyperventilation and a rise in blood pH are more characteristic of the compensatory stage. Choice B is incorrect as hypoxia and a rise in lactic acid are more typical of the progressive stage. Choice D is incorrect as the described electrolyte imbalances and metabolic acidosis are more aligned with the refractory stage of shock.

5. What is the most common cause of HHNS?

• A. Insulin overdose
• B. Removal of the adrenal gland
• C. Undiagnosed, untreated hyperpituitarism
• D. Undiagnosed, untreated diabetes mellitus

Correct answer: D

Rationale: The correct answer is D: Undiagnosed, untreated diabetes mellitus. Hyperosmolar hyperglycemic nonketotic syndrome (HHNS) is most commonly caused by undiagnosed and untreated diabetes mellitus. Insulin overdose (Choice A) is not a typical cause of HHNS; it is more related to hypoglycemia. Removal of the adrenal gland (Choice B) can lead to adrenal insufficiency but is not a common cause of HHNS. Undiagnosed, untreated hyperpituitarism (Choice C) is not a usual cause of HHNS; it is more related to pituitary hormone imbalances rather than hyperglycemia.

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