Nursing Elites

1. What is the proper technique for obtaining a blood specimen from a central venous line?

• A. Use sterile gloves and discard the first 10 mL of blood
• B. Flush the line with heparin and then draw the specimen
• C. Draw the specimen and then administer heparin
• D. Use non-sterile gloves to reduce contamination risk

Correct answer: A

Rationale: The correct technique for obtaining a blood specimen from a central venous line is to use sterile gloves and discard the first 10 mL of blood. This practice helps ensure that the blood sample collected is not contaminated. Choice B is incorrect because flushing the line with heparin before drawing the specimen can contaminate the sample. Choice C is incorrect as administering heparin before drawing the specimen can affect the accuracy of the blood sample. Choice D is incorrect as using non-sterile gloves increases the risk of contamination, which is not recommended when obtaining a blood specimen from a central venous line.

2. What are the common signs and symptoms of dehydration in the elderly?

• A. Dry mouth, confusion, and decreased skin turgor
• B. Increased heart rate and muscle cramps
• C. Fever, rapid breathing, and increased urine output
• D. Increased thirst and difficulty walking

Correct answer: A

Rationale: Corrected Rationale: Dehydration in the elderly is often signaled by dry mouth, confusion, and decreased skin turgor due to reduced fluid intake. Choice A is the correct answer as these are common signs and symptoms of dehydration in the elderly.\nIncorrect Rationales: Option B (Increased heart rate and muscle cramps) are more associated with conditions like hyperthyroidism or electrolyte imbalances rather than dehydration. Option C (Fever, rapid breathing, and increased urine output) are signs of other medical conditions such as infections or diabetes insipidus. Option D (Increased thirst and difficulty walking) can be seen in various situations but are not specific signs of dehydration in the elderly.

3. A client is scheduled for a lumbar puncture. The nurse should assist the client into which of the following positions?

• A. Supine with head elevated
• B. Lateral recumbent
• C. Prone with arms at sides
• D. Sitting with back rounded

Correct answer: B

Rationale: The correct position for a lumbar puncture is the lateral recumbent position. This position allows the spine to curve naturally, widening the spaces between the vertebrae, making it easier and safer to perform the procedure. Supine with head elevated (Choice A) would not provide the proper positioning for a lumbar puncture as it does not allow for proper access to the lumbar area. Prone with arms at sides (Choice C) would not be suitable as it would not facilitate the procedure. Sitting with back rounded (Choice D) is also incorrect as it does not allow for the proper alignment of the spine needed for a lumbar puncture.

4. What is a primary symptom of left-sided heart failure?

• A. Shortness of breath
• B. Edema
• C. Rapid heartbeat
• D. Confusion

Correct answer: A

Rationale: Shortness of breath is a primary symptom of left-sided heart failure. In this condition, the heart's inability to pump effectively leads to fluid backing up into the lungs, causing difficulty breathing. Edema (swelling), rapid heartbeat, and confusion are more commonly associated with other conditions or right-sided heart failure. Edema is often seen in right-sided heart failure due to fluid accumulation in the body, rapid heartbeat can be a general sign of heart issues, and confusion is more related to decreased brain perfusion in severe heart failure cases.

5. What term refers to the agreement to keep promises?

• A. Fidelity
• B. Non-maleficence
• C. Autonomy
• D. Justice

Correct answer: A

Rationale: The term 'fidelity' specifically refers to the agreement to keep promises. Fidelity in healthcare ethics emphasizes the importance of healthcare professionals keeping their commitments to patients. Choice B, 'Non-maleficence,' relates to the ethical principle of doing no harm. Choice C, 'Autonomy,' refers to respecting a patient's right to make decisions about their own healthcare. Choice D, 'Justice,' pertains to fairness and equality in the distribution of healthcare resources.

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