Positive Ketones: Should You Worry About Diabetes? - Urology

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Ketone positive


Hello Doctor, I recently had a urinary tract infection, and during my visit to the clinic, they performed a urinalysis.
The report showed that my urine glucose was negative, but my ketones were positive.
The doctor at the clinic mentioned that this could be due to dehydration and advised me to drink more water.
However, after researching online, I found that positive ketones could potentially indicate diabetes, which has made me quite concerned.
I would like to know if there is a possibility that I have diabetes and whether I should go to a larger hospital for further testing.
Thank you for taking the time to respond amidst your busy schedule.

Yang, 20~29 year old female. Ask Date: 2023/06/20

Dr. Du Shixi reply Urology


Hello: If you have diabetes, there will be a positive test for sugar in the urine.
Wishing you good health.

Reply Date: 2023/06/20

More Info


Hello! It’s great that you’re taking an active interest in your health and seeking to understand your test results. Let’s break down your concerns regarding positive ketones and their potential relationship with diabetes.

Firstly, the presence of ketones in your urine can indicate that your body is using fat for energy instead of carbohydrates. This typically occurs when there is not enough glucose available for energy, which can happen in several situations, including fasting, prolonged exercise, or low carbohydrate intake. In some cases, it can also indicate a state of ketosis, which is often pursued intentionally by individuals following ketogenic diets.

However, when ketones are present in the urine, it can also raise concerns about diabetes, particularly type 1 diabetes or diabetic ketoacidosis (DKA). DKA is a serious condition that can occur in individuals with type 1 diabetes when insulin levels are very low, leading to high blood sugar levels and the production of ketones. In your case, since your urine glucose was negative, it suggests that your blood sugar levels are likely not elevated to the point typically seen in diabetes.

Your doctor’s suggestion to increase your water intake is a good one. Dehydration can concentrate ketones in the urine, leading to a positive test result. It’s essential to stay well-hydrated, especially if you’ve experienced a urinary tract infection (UTI), as this can also affect your overall health and kidney function.

Given your concerns about diabetes, it’s wise to consider further evaluation. While your current test results do not definitively indicate diabetes, it’s important to monitor your health, especially if you have risk factors such as a family history of diabetes. A follow-up with your healthcare provider for additional blood tests, such as fasting blood glucose and HbA1c, can provide a clearer picture of your metabolic health. The HbA1c test measures your average blood sugar levels over the past two to three months and is a standard test for diagnosing diabetes.

In summary, while the presence of ketones in your urine can be concerning, your negative urine glucose result and your doctor's advice to increase hydration suggest that you may not have diabetes at this time. However, it’s always best to err on the side of caution and follow up with your healthcare provider for further testing and peace of mind. Maintaining a healthy lifestyle, including a balanced diet and regular exercise, will also support your overall health and help mitigate any potential risks.

If you have any further questions or need clarification on any points, don’t hesitate to reach out to your healthcare provider. They can provide personalized advice based on your medical history and current health status. Take care!

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