A healthcare professional is reviewing the laboratory results of a client who is taking Lithium for Bipolar Disorder. Which of the following findings should the healthcare professional report to the provider immediately?

Correct Answer: D

Rationale: A creatinine level of 1.0 mg/dL should be reported to the provider immediately. While a lithium level of 1.0 mEq/L falls within the therapeutic range, a creatinine level of 1.0 mg/dL could suggest early signs of kidney dysfunction, especially concerning in a client on long-term lithium therapy. It is crucial to monitor kidney function closely because lithium can be nephrotoxic over time. Elevated creatinine levels may indicate impaired kidney function and should prompt immediate reporting to the healthcare provider. Potassium and sodium levels within normal range are not immediate concerns when compared to potential kidney issues.

Correct Answer: D

Rationale: Metformin is excreted by the kidneys, and impaired kidney function can lead to an increased risk of lactic acidosis, a serious side effect. Therefore, it is important to monitor kidney function regularly while a client is on Metformin. Hemoglobin A1C is used to monitor long-term glucose control, but kidney function is the priority for monitoring Metformin therapy.

Correct Answer: A

Rationale: Levothyroxine should be taken first thing in the morning before eating to ensure optimal absorption. Taking it on an empty stomach helps prevent interactions with food or other medications that may decrease its effectiveness. It is important to follow this timing recommendation to maintain consistent thyroid hormone levels in the body. Choice B is incorrect as taking Levothyroxine at bedtime may lead to inconsistent absorption and affect its efficacy. Choice C is incorrect because taking Levothyroxine with food can interfere with its absorption. Choice D is incorrect as Levothyroxine should be taken with a full glass of water, not milk, to aid in proper absorption.

Correct Answer: A

Rationale: The nurse should monitor the client's potassium levels when taking Furosemide because the medication can lead to hypokalemia. Hypokalemia is a potential side effect of Furosemide, a loop diuretic, due to increased potassium excretion in the urine. Monitoring potassium levels is crucial to prevent complications such as cardiac dysrhythmias associated with low potassium levels. Therefore, choices B (Sodium level), C (Hemoglobin A1C), and D (BUN) are incorrect as they are not directly influenced by Furosemide therapy for heart failure.

Correct Answer: A

Rationale: Metformin is known to have a risk of causing lactic acidosis, particularly in clients with renal impairment or predisposing conditions. Lactic acidosis is a rare but serious adverse effect of metformin use that can be life-threatening. Metoprolol, Lisinopril, and Insulin do not have a known association with lactic acidosis. Healthcare professionals should monitor clients prescribed metformin carefully, especially those with risk factors, to detect and manage lactic acidosis promptly.