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. A nurse is reinforcing teaching about a clear liquid diet. What should the client avoid?

• A. Lemon-lime sports drinks
• B. Orange sherbet
• C. Black coffee
• D. Ginger ale

Correct answer: D

Rationale: The correct answer is D, Ginger ale. A clear liquid diet includes fluids that are see-through and easily digestible. Ginger ale is a carbonated beverage that is allowed on a clear liquid diet. Orange sherbet, choice B, is not suitable for a clear liquid diet as it contains dairy products and solid particles, which are not transparent. Lemon-lime sports drinks, choice A, may contain added colorings or particles that are not allowed on a clear liquid diet. Black coffee, choice C, is also not recommended on a clear liquid diet as it is not a clear liquid and contains substances that may be hard to digest.

3. What are the key differences between systolic and diastolic heart failure?

• A. Systolic: Reduced ejection fraction; Diastolic: Preserved ejection fraction
• B. Systolic: Preserved ejection fraction; Diastolic: Reduced ejection fraction
• C. Systolic: Right-sided heart failure; Diastolic: Left-sided heart failure
• D. Systolic: Pulmonary congestion; Diastolic: Systemic congestion

Correct answer: A

Rationale: The correct answer is A. Systolic heart failure is characterized by reduced ejection fraction, meaning the heart is not pumping effectively. Diastolic heart failure, on the other hand, is characterized by preserved ejection fraction, indicating that the heart has difficulty relaxing and filling properly. Choices B, C, and D are incorrect because they do not accurately describe the key differences between systolic and diastolic heart failure.

4. A nurse is caring for a client who has chronic obstructive pulmonary disease (COPD). Which of the following interventions should the nurse include in the plan of care?

• A. Administer oxygen at 2L/min via nasal cannula
• B. Encourage pursed-lip breathing
• C. Position the client in high Fowler's position
• D. Encourage deep breathing and coughing

Correct answer: B

Rationale: The correct intervention for a client with COPD is to encourage pursed-lip breathing. Pursed-lip breathing helps improve oxygenation by preventing airway collapse, slowing down the breathing rate, and promoting better gas exchange. Administering oxygen at 2L/min via nasal cannula is not the first-line intervention as it can cause oxygen toxicity in COPD patients. Positioning the client in high Fowler's position may improve ventilation but does not specifically address the breathing technique required for COPD. Encouraging deep breathing and coughing is generally not recommended for clients with COPD as it can lead to air trapping and increased work of breathing.

5. What is the initial step a nurse should take when irrigating a wound?

• A. Wear sterile gloves while removing the old dressing
• B. Cleanse the wound from the center outward
• C. Apply a warm compress to the wound
• D. Use a 20 mL syringe to irrigate the wound

Correct answer: B

Rationale: The correct first action when irrigating a wound is to cleanse the wound from the center outward. This method helps remove debris and pathogens effectively, reducing the risk of infection. Choice A is incorrect because wearing sterile gloves should be done before starting the wound irrigation but is not the first action in the process. Choice C is incorrect as applying a warm compress is not the initial step in wound irrigation. Choice D is also incorrect as using a syringe to irrigate the wound comes after cleansing the wound.

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