Correct Answer: B

Rationale: The correct answer is B. A blood pressure of 110/70 mm Hg is a finding that the nurse should report to the provider when caring for a client with heart failure receiving digoxin. Digoxin can cause hypotension, so a low blood pressure reading should be reported promptly to the provider for further evaluation and management. Choices A, C, and D are within normal ranges and would not require immediate reporting. A heart rate of 60/min is considered normal, but any further decrease should be monitored. A serum potassium level of 4 mEq/L is also within the normal range. A blood pressure of 120/80 mm Hg is typically considered normal as well.

Correct Answer: C

Rationale: The correct first action for the nurse to take when preparing to administer packed RBCs is to check the client's identification using two identifiers. This step is crucial to ensure that the right blood is given to the right client, preventing any transfusion errors. Priming the IV tubing with dextrose 5% in water and administering the blood through a 22-gauge catheter are important steps but should come after confirming the client's identity. Ensuring the client's consent is on file is also important but is not the immediate priority when preparing to administer packed RBCs.

Correct Answer: B

Rationale: The correct answer is B. A blood pressure of 110/70 mm Hg is a finding that the nurse should report to the provider when caring for a client with heart failure receiving digoxin. Digoxin can cause hypotension, so a low blood pressure reading should be reported promptly to the provider for further evaluation and management. Choices A, C, and D are within normal ranges and would not require immediate reporting. A heart rate of 60/min is considered normal, but any further decrease should be monitored. A serum potassium level of 4 mEq/L is also within the normal range. A blood pressure of 120/80 mm Hg is typically considered normal as well.

Correct Answer: C

Rationale: The correct answer is C: Serum potassium. Furosemide is a potassium-wasting diuretic, meaning it can lead to potassium loss in the body. Monitoring serum potassium levels is crucial to evaluate the effectiveness of furosemide and prevent hypokalemia. Options A, B, and D are incorrect because furosemide does not directly affect sodium, glucose, or calcium levels in the same way it impacts potassium levels.

Correct Answer: D

Rationale: Administering the medication is appropriate for a stable lithium level of 0.8 mEq/L. A level of 0.8 mEq/L falls within the therapeutic range for lithium, indicating that the client is receiving an adequate dose to maintain therapeutic effects. Withholding the next dose, increasing the dosage, or discontinuing the medication would not be indicated at this lithium level as it is within the desired range for therapeutic benefit. Therefore, the correct action would be to continue administering the medication to ensure the client maintains the therapeutic level of lithium.