What is the normal ketone level in urine?

What is the normal ketone level in urine?

• A. Positive
• B. Negative
• C. Trace
• D. High

Answer: (B)

Ketone bodies appear in urine when the body relies on fat for energy. In a healthy person, the kidneys don’t excrete detectable ketones, so the urine test for ketones is negative. A negative result means no ketonuria, which is what you’d expect under normal conditions. When ketones are detected, it points to increased fat metabolism or insufficient insulin—such as in uncontrolled diabetes, prolonged fasting or starvation, very low-carbohydrate diets, dehydration, or vomiting. Trace amounts can occur in some situations, but they aren’t considered normal findings. Therefore, the normal ketone level in urine is negative.

Ketone bodies appear in urine when the body relies on fat for energy. In a healthy person, the kidneys don’t excrete detectable ketones, so the urine test for ketones is negative. A negative result means no ketonuria, which is what you’d expect under normal conditions. When ketones are detected, it points to increased fat metabolism or insufficient insulin—such as in uncontrolled diabetes, prolonged fasting or starvation, very low-carbohydrate diets, dehydration, or vomiting. Trace amounts can occur in some situations, but they aren’t considered normal findings. Therefore, the normal ketone level in urine is negative.