The nurse is reviewing pre-operative laboratory studies of an adult client on a medical-surgical unit. Which result should be reported to the physician immediately?
Sodium, 152 mEq/L
Potassium, 3.8 mEq/L
Calcium, 10.0 mg/dL
Creatinine, 1.2 mg/dL
The Correct Answer is A
Choice A Reason:
Sodium levels in the blood should normally be between 135 and 145 mEq/L. A level of 152 mEq/L is considered high and can be indicative of hypernatremia, which requires prompt medical attention to address potential dehydration, kidney issues, or other underlying conditions.
Choice B Reason:
Potassium levels should be within the range of 3.5 to 5.2 mEq/L for adults. A result of 3.8 mEq/L falls within the normal range, indicating no immediate concern regarding potassium levels.
Choice C Reason:
Calcium levels in the blood are typically between 8.6 and 10.2 mg/dL for adults. Therefore, a calcium level of 10.0 mg/dL is within the normal range and does not require urgent reporting to a physician.
Choice D Reason:
Creatinine levels in the blood should be between 0.6 to 1.3 mg/dL in adults, depending on factors such as age, gender, and muscle mass. A level of 1.2 mg/dL is at the higher end of the normal range but is not typically considered critical unless there are other signs of kidney dysfunction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason
A negative sputum culture is the most definitive indicator of the effectiveness of tuberculosis (TB) treatment. When a patient with active TB starts on medication, the goal is to eliminate the Mycobacterium tuberculosis bacteria from the body. A sputum culture that turns from positive to negative signifies that the bacteria have been eradicated from the respiratory secretions, indicating successful treatment.
Choice B Reason
While decreased hemoptysis (coughing up blood) is a positive sign and indicates an improvement in the patient's condition, it is not the most reliable parameter for determining the effectiveness of TB therapy. Hemoptysis may decrease as the patient's overall condition improves, but it does not confirm the eradication of the TB bacteria.
Choice C Reason
An improved chest x-ray can show a reduction in the lesions caused by TB, which is a good sign of recovery. However, chest x-rays cannot confirm whether the TB bacteria have been completely eliminated. They are more of a supportive indicator rather than a definitive one.
Choice D Reason
A decreased rate of coughing is another sign that the patient is responding to treatment, as coughing is a primary symptom of TB. However, similar to hemoptysis and chest x-ray improvements, a decrease in coughing does not necessarily mean that the TB bacteria have been fully cleared from the body.
Correct Answer is A
Explanation
Choice A reason:
Prednisone is a corticosteroid that can cause hyperglycemia, especially in clients with diabetes. The nurse should monitor blood glucose levels because prednisone can increase insulin resistance and hepatic glucose production, leading to elevated blood glucose levels. Normal fasting blood glucose levels range from 70 to 99 mg/dL, and for individuals with diabetes, maintaining blood glucose levels within the target range set by their healthcare provider is crucial to prevent complications.
Choice B reason:
While corticosteroids can affect electrolyte balance, they typically cause a decrease in potassium levels, not an increase. Therefore, monitoring for hypokalemia, rather than hyperkalemia, would be more appropriate when a patient is on prednisone. The normal range for serum potassium is 3.5 to 5.0 mEq/L.
Choice C reason:
Corticosteroids like prednisone can cause leukocytosis, an increase in white blood cell count, as part of their immunosuppressive action. However, this is generally not a harmful side effect unless accompanied by infection or other complications. The normal range for white blood cell count is approximately 4,500 to 11,000 cells per microliter.
Choice D reason:
Increased ketones in the urine, or ketonuria, is not a typical side effect of prednisone. Ketonuria is more commonly associated with uncontrolled diabetes, particularly Type 1 diabetes, when there is an insulin deficiency and the body resorts to fat breakdown, leading to ketone production.
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