Correct Answer: A

Rationale: The correct answer is to monitor potassium levels in patients receiving furosemide. Furosemide is a loop diuretic that can lead to potassium loss in the urine, potentially causing hypokalemia. Monitoring potassium levels is crucial to prevent complications associated with low potassium levels, such as cardiac arrhythmias. Monitoring sodium levels (choice B) is not typically necessary with furosemide use, as it primarily affects potassium levels. Calcium levels (choice C) and glucose levels (choice D) are not directly impacted by furosemide and require monitoring for other conditions or medications.

Correct Answer: C

Rationale: The correct answer is C. A serum potassium level of 3.0 mEq/L is below the normal range and indicates hypokalemia, which should be reported to the provider. Hypokalemia can lead to serious complications such as cardiac arrhythmias. Choices A, B, and D are within normal ranges and do not require immediate reporting. A blood glucose level of 150 mg/dL is slightly elevated but not critically high. A serum sodium level of 138 mEq/L is within the normal range. A serum albumin level of 3.8 g/dL is also within the normal range.

Correct Answer: C

Rationale: In clients with heart failure, decreased urinary output is a classic sign of fluid overload. The kidneys try to compensate for the increased volume by reducing urine output, leading to fluid retention. A dry, hacking cough (choice A) is more indicative of heart failure complications like pulmonary edema. Bounding peripheral pulses (choice B) are a sign of increased volume, but not specifically fluid overload. Weight loss of 1 kg in 24 hours (choice D) is not indicative of fluid overload but rather rapid fluid loss.

Correct Answer: D

Rationale: The correct answer is D, Metformin. Metformin should be discontinued 48 hours before an arteriogram due to the risk of lactic acidosis. Atorvastatin (Choice A) is a statin used to lower cholesterol levels and is not typically contraindicated before an arteriogram. Digoxin (Choice B) is a medication used for heart conditions and does not need to be discontinued before an arteriogram. Nifedipine (Choice C) is a calcium channel blocker used to treat high blood pressure and angina, and it is not necessary to discontinue before the procedure.

Correct Answer: A

Rationale: When a patient refuses a blood transfusion for religious reasons, the healthcare provider should respect the patient's beliefs. It is crucial to uphold the patient's autonomy and right to make decisions about their care, even if the provider disagrees. Educating the patient on the importance of the transfusion may be appropriate in some cases, but the initial response should always be to respect the patient's decision. Notifying the healthcare provider is not necessary as the decision lies with the patient. Persuading the patient to accept the transfusion goes against the principle of respecting the patient's autonomy and beliefs.