From the Guidelines
The immediate management of a patient with ketonuria (+2 ketones) and glycosuria (+4 glucose) should focus on treating diabetic ketosis or early diabetic ketoacidosis, starting with fluid resuscitation and insulin therapy, as outlined in the most recent guidelines 1.
Key Steps in Management
- Start with fluid resuscitation using intravenous normal saline at 15-20 mL/kg in the first hour, then adjust to 250-500 mL/hour based on hydration status.
- Begin insulin therapy with an IV insulin regular bolus of 0.1 units/kg followed by a continuous infusion at 0.1 units/kg/hour, as recommended by recent studies 1.
- Monitor blood glucose hourly, aiming for a gradual decrease of 50-75 mg/dL per hour.
- Check electrolytes, particularly potassium, and replace as needed (typically 20-40 mEq/L in IV fluids if potassium is below 5.2 mEq/L).
- Assess acid-base status with arterial blood gases and measure serum ketones.
- Once blood glucose reaches 200-250 mg/dL, add dextrose to IV fluids (D5 or D10) while continuing insulin until ketosis resolves.
- Investigate the underlying cause, which may include infection, medication non-compliance, or new-onset diabetes.
Rationale
The combination of ketonuria and glycosuria indicates insulin deficiency leading to fat breakdown and ketone production, which can rapidly progress to life-threatening diabetic ketoacidosis if not promptly addressed 1. Recent guidelines emphasize the importance of individualized treatment based on careful clinical and laboratory assessment 1.
Monitoring and Adjustment
- Monitor ketone levels and adjust treatment accordingly, with the goal of resolving ketosis.
- Use specific measurement of b-hydroxybutyrate in blood for diagnosis and monitoring of DKA, as recommended by recent guidelines 1.
- Avoid using blood ketone determinations that rely on the nitroprusside reaction for monitoring treatment of DKA 1.
From the FDA Drug Label
Hyperglycemia (too much glucose in the blood) may develop if your body has too little insulin Hyperglycemia can be brought about by any of the following: Omitting your insulin or taking less than your doctor has prescribed. In patients with type 1 or insulin-dependent diabetes, prolonged hyperglycemia can result in DKA (a life-threatening emergency) The first symptoms of DKA usually come on gradually, over a period of hours or days, and include a drowsy feeling, flushed face, thirst, loss of appetite, and fruity odor on the breath. With DKA, blood and urine tests show large amounts of glucose and ketones.
The immediate steps to manage a patient with ketonuria (+2 ketones) and glycosuria (+4 glucose) in urine are:
- Monitor blood glucose frequently
- Test ketones and report the results to the doctor
- Follow a sick day plan established by the doctor in case of illness
- Adjust insulin regimen as prescribed by the doctor to accommodate the patient's needs
- Seek medical assistance immediately if symptoms of Diabetic Ketoacidosis (DKA) occur, such as drowsy feeling, flushed face, thirst, loss of appetite, and fruity odor on the breath 2 2.
From the Research
Immediate Steps to Manage Ketonuria and Glycosuria
The presence of +2 ketones and +4 glucose in urine indicates a potential life-threatening complication, possibly diabetic ketoacidosis (DKA) 3. The following steps should be taken to manage the patient:
- Evaluate the patient's symptoms, such as polyuria, polydipsia, nausea, vomiting, abdominal pain, weight loss, severe fatigue, dyspnea, and preceding febrile illness
- Check the patient's blood glucose level, as hyperglycemia (blood glucose greater than 250 mg/dL) is a common symptom of DKA 3
- Assess the patient's electrolyte levels, phosphate, blood urea nitrogen, creatinine, and perform a urinalysis, complete blood cell count with differential, and A1C test to identify causes and complications of DKA 3
- Consider additional tests, such as amylase, lipase, hepatic transaminase levels, troponin, creatine kinase, blood and urine cultures, and chest radiography 3
- Initiate treatment with fluid and electrolyte replacement, insulin, and treatment of precipitating causes 3
- Closely monitor the patient to adjust therapy and identify complications 3
Note on Relevant Studies
The study on luteal insufficiency and benign breast diseases 4 is not directly relevant to the management of ketonuria and glycosuria. However, the study on diabetic ketoacidosis 3 provides guidance on the evaluation and treatment of this condition.