Nursing Elites

1. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which laboratory finding is most indicative of this condition?

• A. Serum glucose of 180 mg/dL
• B. Blood pH of 7.30
• C. Positive urine ketones
• D. Serum bicarbonate of 25 mEq/L

Correct answer: C

Rationale: The correct answer is C: Positive urine ketones. In diabetic ketoacidosis (DKA), the body breaks down fat for energy due to a lack of insulin, leading to ketone production. Positive urine ketones are a hallmark laboratory finding in DKA as they directly reflect the presence of ketosis. Choice A, serum glucose of 180 mg/dL, may be elevated in DKA, but it is not specific to this condition. Choice B, blood pH of 7.30, often shows acidosis in DKA, but urine ketones are more specific to the presence of ketosis. Choice D, serum bicarbonate of 25 mEq/L, would typically be low in DKA due to acidosis rather than elevated.

2. A client with a diagnosis of tuberculosis (TB) is being discharged home. Which instruction is most important for the nurse to provide?

• A. Avoid close contact with others until treatment is complete.
• B. Take all prescribed medications as directed.
• C. Schedule a follow-up appointment with the healthcare provider.
• D. Wear a mask when in public places.

Correct answer: B

Rationale: The most important instruction for a client with tuberculosis (TB) is to take all prescribed medications as directed. This is crucial to prevent the development of drug-resistant TB. While avoiding close contact with others until treatment is complete (Choice A) is important to prevent the spread of TB, ensuring the client completes the prescribed medication regimen is the priority. Scheduling a follow-up appointment (Choice C) is important for monitoring but not as critical as medication adherence. Wearing a mask in public places (Choice D) can help reduce the spread of TB but is not as essential as taking medications as prescribed.

3. The nurse is caring for a client who is postoperative following a hip replacement. Which intervention is most important to prevent dislocation of the prosthesis?

• A. Keep the client in a low Fowler's position.
• B. Maintain hip abduction with pillows.
• C. Encourage early ambulation.
• D. Place the client in a prone position.

Correct answer: B

Rationale: Maintaining hip abduction with pillows is the most important intervention to prevent dislocation of the hip prosthesis postoperatively. This position helps keep the hip joint stable and prevents excessive internal rotation, which can lead to dislocation. Keeping the client in a low Fowler's position (Choice A) does not provide the necessary support and stability for the hip joint. While early ambulation (Choice C) is important for preventing complications such as blood clots and promoting circulation, it is not the most crucial intervention for preventing dislocation. Placing the client in a prone position (Choice D) can be harmful and increase the risk of dislocation.

4. The nurse is preparing to administer a subcutaneous injection of heparin. What is the correct angle of insertion?

• A. 15 degrees
• B. 30 degrees
• C. 45 degrees
• D. 90 degrees

Correct answer: C

Rationale: The correct angle of insertion for a subcutaneous injection, such as heparin, is 45 degrees. This angle is appropriate as it helps to ensure proper delivery of the medication into the subcutaneous tissue. Option A (15 degrees) is too shallow for a subcutaneous injection and may result in the medication being deposited into the muscle. Option B (30 degrees) is also too shallow for subcutaneous injections. Option D (90 degrees) is used for intramuscular injections, not subcutaneous injections.

5. What is the primary function of neutrophils?

• A. Heparin secretion
• B. Transport oxygen
• C. Phagocytotic action
• D. Antibody formation

Correct answer: C

Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.

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