Nursing Elites

1. Which healthcare-associated infection poses the greatest risk for patients?

• A. Pneumonia
• B. Catheter-related infections
• C. Intravenous line infections
• D. C. difficile

Correct answer: B

Rationale: Catheter-related infections pose the greatest risk for patients in healthcare settings. Catheters are invasive devices that can introduce pathogens directly into the bloodstream, leading to severe infections. Pneumonia, intravenous line infections, and C. difficile infections are serious concerns as well, but catheter-related infections are particularly risky due to the direct access they provide for pathogens to enter the body.

2. Select the tactile sensation that is accurately paired with its description or procedure for testing.

• A. Fine motor coordination: The use of the fingers
• B. Stereognosis: Equal hearing in both ears
• C. Two-point discrimination: The nurse gently pricks the patient's skin
• D. Gross motor function: The use of the lower limbs

Correct answer: C

Rationale: The correct answer is C: Two-point discrimination: The nurse gently pricks the patient's skin. Two-point discrimination assesses the ability to discern two points touched simultaneously on the skin. Fine motor coordination (Choice A) refers to the precise movements of small muscles, not related to tactile sensation. Stereognosis (Choice B) is the ability to recognize objects by touch, not equal hearing in both ears. Gross motor function (Choice D) involves the coordination of large muscle groups, not specifically related to tactile sensation testing.

3. 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.

4. A patient is admitted to the emergency department with hypovolemia. Which IV solution should the nurse anticipate administering?

• A. 3% sodium chloride
• B. 10% dextrose in water
• C. 0.45% sodium chloride
• D. Lactated Ringer's solution

Correct answer: D

Rationale: Lactated Ringer's solution is the most suitable IV solution for a patient with hypovolemia. It is a balanced crystalloid solution containing electrolytes such as sodium, chloride, potassium, calcium, and lactate, which closely resemble the body's natural fluids. This solution helps to restore intravascular volume and electrolyte balance in hypovolemic patients. Choice A, 3% sodium chloride, is a hypertonic solution used for specific situations like severe hyponatremia or cerebral edema, not typically for hypovolemia. Choice B, 10% dextrose in water, is a hypertonic solution primarily used for providing calories and free water, not for volume expansion. Choice C, 0.45% sodium chloride, is a hypotonic solution used for conditions like hypernatremia or as maintenance fluid, not for hypovolemia.

5. Alcohol, caffeine, or drugs are high-risk factors that all fall under which broad classification of risk factors?

• A. Social demographic
• B. Environmental
• C. Biophysical
• D. Psychosocial

Correct answer: D

Rationale: The correct answer is D: Psychosocial. Alcohol, caffeine, or drug use are considered psychosocial risk factors as they are related to individual behavior, lifestyle choices, and social interactions. Choices A, B, and C are incorrect. Social demographic factors (choice A) refer to characteristics of a population such as age, gender, education, income, etc. Environmental factors (choice B) include physical surroundings like air quality, housing conditions, etc. Biophysical factors (choice C) involve biological aspects like genetics, physiology, and health conditions.

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