Which of the following is an expected laboratory value for serum creatinine?

The expected range for serum creatinine is typically between 0.5 to 1.1 mg/dL for adults, making option A the correct answer. Serum creatinine levels are important indicators of kidney function; they reflect the ability of the kidneys to filter waste from the blood. Normal values can vary slightly based on factors such as age, sex, and muscle mass, but they generally stay within this range for healthy individuals.

Higher values, such as those represented in options B, C, and D, could indicate impaired kidney function or other health issues. For example, values ranging from 10-20 mg/dL would be considered extremely high and indicative of significant renal failure. Similarly, levels of 3.5-5 mg/dL or 2.4-4.1 mg/dL would also suggest a serious problem, as they exceed the normal range and may require immediate medical intervention. Understanding these values is crucial for assessing kidney health and diagnosing potential disorders.