A nurse is providing care for a client who has hypervolemia, ketoacidosis, and metabolic acidosis. Which of the following lab values should the nurse be concerned about?
Serum potassium levels
Serum calcium levels
Serum sodium levels
Blood urea nitrogen (BUN)
The Correct Answer is A
The correct answer is a) Serum potassium levels.
Choice A reason:
Serum potassium levels are crucial to monitor in clients with hypervolemia, ketoacidosis, and metabolic acidosis. Potassium imbalances are common in these conditions due to shifts between intracellular and extracellular compartments. In diabetic ketoacidosis (DKA), for example, insulin deficiency and acidosis cause potassium to move out of cells, leading to hyperkalemia. However, once treatment with insulin begins, potassium shifts back into cells, which can cause hypokalemia. Both hyperkalemia and hypokalemia can have serious cardiac implications, making it essential to monitor and manage potassium levels closely.
Choice B reason:
Serum calcium levels are important for overall health, but they are not the primary concern in the context of hypervolemia, ketoacidosis, and metabolic acidosis. While calcium imbalances can occur, they are less common and less immediately life-threatening compared to potassium imbalances. Monitoring calcium is still necessary, but it does not require the same level of immediate intervention.
Choice C reason:
Serum sodium levels are also important to monitor, especially in conditions like hypervolemia where fluid balance is disrupted. However, sodium imbalances are typically managed through fluid management and do not pose the same immediate risk as potassium imbalances in the context of ketoacidosis and metabolic acidosis. Hyponatremia or hypernatremia can cause neurological symptoms, but these are generally less acute compared to the cardiac risks associated with potassium imbalances.
Choice D reason:
Blood urea nitrogen (BUN) levels provide information about kidney function and hydration status. Elevated BUN can indicate dehydration or renal impairment, which are relevant in the context of hypervolemia and ketoacidosis. However, BUN levels do not require the same level of immediate intervention as potassium levels. Monitoring BUN is important for overall management but is not the primary concern in acute settings.
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Correct Answer is B
Explanation
Choice A Reason:
Monitoring blood glucose levels is crucial for managing diabetes, but in the context of hyperosmolar hyperglycemic syndrome (HHS), recognizing the signs and symptoms is more critical. HHS is a serious condition characterized by extremely high blood sugar levels without significant ketoacidosis. Early recognition of symptoms such as extreme thirst, frequent urination, confusion, and weakness can prevent complications and prompt timely medical intervention.
Choice B Reason:
Recognizing signs and symptoms of HHS is the most important topic to prioritize. HHS can develop gradually and may be life-threatening if not identified and treated promptly. Patients and caregivers need to be aware of the warning signs to seek immediate medical attention. Symptoms include severe dehydration, altered mental status, and very high blood glucose levels. Educating patients on these signs ensures they can act quickly to prevent severe outcomes.
Choice C Reason:
Administering insulin correctly is essential for managing diabetes, but it is not the top priority in the context of HHS education. While proper insulin administration helps control blood glucose levels, the immediate concern in HHS is recognizing the condition’s onset. Once HHS is identified, insulin administration becomes part of the treatment plan, but early detection is key to preventing severe complications.
Choice D Reason:
Understanding the importance of hydration is important because dehydration is a significant component of HHS. Patients with HHS often experience severe dehydration due to high blood glucose levels leading to osmotic diuresis. Educating patients on maintaining adequate hydration can help manage their condition and prevent the onset of HHS. However, recognizing the symptoms of HHS remains the top priority.
Choice E Reason:
Managing diet and nutrition is a fundamental aspect of diabetes care, but it is not the primary focus when dealing with HHS. While a balanced diet helps maintain stable blood glucose levels, the immediate concern in HHS is identifying and responding to the condition’s symptoms. Once HHS is recognized and treated, dietary management becomes part of the long-term care plan.
Correct Answer is B
Explanation
Choice A Reason:
This statement is incorrect because a hemoglobin A1C level of 9% indicates that the client’s blood sugar levels have been consistently high over the past two to three months. Hemoglobin A1C is a measure of average blood glucose levels, not low blood sugar levels. Therefore, it would be inappropriate to suggest that the client has dangerously low blood sugar levels based on this result.
Choice B Reason:
This statement is correct because a hemoglobin A1C level of 9% indicates that the client’s average blood sugar levels are high. Hemoglobin A1C reflects the average blood glucose levels over the past two to three months. A normal A1C level is below 5.7%, while an A1C level between 5.7% and 6.4% indicates prediabetes, and an A1C level of 6.5% or higher indicates diabetes. Therefore, an A1C level of 9% clearly shows that the client’s average blood sugar is high.
Choice C Reason:
This statement is partially correct but not the most appropriate. While it is true that a high hemoglobin A1C level can indicate that blood sugar levels are high after meals, it is not specific enough. Hemoglobin A1C measures the average blood glucose levels over a period of time, not just after meals. Therefore, the statement “Your average blood sugar is high” is more accurate and appropriate.
Choice D Reason:
This statement is incorrect because it is too vague and does not provide specific information about the client’s blood sugar levels. While a high hemoglobin A1C level can indicate variability in blood sugar levels, it primarily reflects the average blood glucose levels over the past two to three months. Therefore, it would be more appropriate to state that the client’s average blood sugar is high.
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