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 signs and symptoms of fluid overload?

• A. Edema, shortness of breath, weight gain
• B. High blood pressure and jugular venous distention
• C. Low blood pressure and cyanosis
• D. Tachycardia and dizziness

Correct answer: A

Rationale: The correct signs and symptoms of fluid overload include edema, shortness of breath, and weight gain. Edema is the abnormal accumulation of fluid causing swelling, shortness of breath can occur due to fluid accumulating in the lungs, and weight gain is often seen as a result of excess fluid retention. Choices B, C, and D are incorrect because high blood pressure and jugular venous distention are more indicative of conditions like heart failure, while low blood pressure and cyanosis are seen in conditions like shock or poor perfusion. Tachycardia and dizziness are not typical signs of fluid overload.

3. What are the key signs of hyperkalemia and how should it be treated?

• A. Elevated potassium levels, muscle weakness; administer calcium gluconate
• B. Decreased potassium levels, confusion; administer potassium chloride
• C. Elevated sodium levels, bradycardia; administer sodium bicarbonate
• D. Low sodium levels, muscle cramps; administer sodium chloride

Correct answer: A

Rationale: The correct signs of hyperkalemia include elevated potassium levels and muscle weakness. The treatment involves administering calcium gluconate to help stabilize the heart. Choice B is incorrect as hyperkalemia is characterized by elevated, not decreased, potassium levels. Choice C is incorrect as hyperkalemia does not involve elevated sodium levels, and the treatment is not sodium bicarbonate. Choice D is incorrect as hyperkalemia does not lead to low sodium levels, and sodium chloride is not the treatment for hyperkalemia.

4. What are common signs of hypoglycemia?

• A. Shakiness or Tremors
• B. Sweating
• C. Hunger
• D. Confusion or Irritability

Correct answer: A

Rationale: The correct signs of hypoglycemia include shakiness or tremors, sweating, and hunger. These symptoms indicate low blood sugar levels. Confusion or irritability are more associated with severe hypoglycemia, while the immediate treatment for hypoglycemia involves providing a source of glucose to raise blood sugar levels quickly.

5. A nurse is preparing to administer an IM injection to a client who is obese. Which of the following actions should the nurse take?

• A. Use the Z-track method to administer the medication.
• B. Use a 1.5-inch needle to administer the medication.
• C. Use the deltoid muscle for the injection.
• D. Administer the injection at a 90° angle.

Correct answer: A

Rationale: The Z-track method should be used to administer IM injections in obese clients to prevent medication from leaking into subcutaneous tissue. Using a longer needle (1.5 inches) ensures that the medication reaches the muscle mass adequately. Choice C is incorrect because the deltoid muscle is not ideal for IM injections in obese clients due to inadequate muscle mass. Administering the injection at a 90° angle (perpendicular to the skin) is recommended for IM injections to ensure proper delivery into the muscle.

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