Hyperosmolar syndrome

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Hyperosmolar syndrome or diabetic hyperosmolar syndrome is a medical emergency caused by a very high blood glucose level.

Contents

The prefix "hyper-" means high, and "osmolarity" is a measure of the concentration of active particles in a solution, so the name of the syndrome simply refers to the high concentration of glucose in the blood.

Signs & symptoms

Hyperosmolar syndrome may take a long duration (days to weeks) to develop. However, certain signs and symptoms may indicate that such a condition is developing. Some of the signs include the following: [1]

  1. Excessive thirst despite frequently taking water or other liquids
  2. Continued high level of blood sugar
  3. Dry mouth
  4. Increased urination
  5. Rapid pulse
  6. Shortness of breath with exertion
  7. Skin becomes warm and dry with no sweating
  8. Sleepiness and/or a condition of confusion

Diagnosis

Early diagnosis for (diabetic) hyperosmolar syndrome is crucial. Doctors or trained medical practitioners will perform both mental and physical exams, and may ask those present about the patient's medical history. [1] Physical tests will likely include the collection of blood and urine samples to measure blood sugar levels as well as the functioning of the kidneys. These tests will also indicate whether there is an infection. [1] The blood tests allow for the detection of different solutes in the plasma, as well as the glucose levels. Moreover, further laboratory tests will measure ketone levels as an indication of ketosis. A high ketone count found in the urine samples means that the body is sourcing its energy through the burning of fat at a fast rate, turning fatty acids into ketones. High blood sugar levels may cause a decrease in sodium levels, which is another potential indicator of hyperosmolar syndrome. [2]

Treatment

Emergency treatment can come into effect within hours in case of diabetic hyperosmolar syndrome. Treatment involves intravenous fluids to replenish hydration-reducing plasma, intravenous insulin to lower blood sugar levels, and intravenous potassium and sodium to replace the lost electrolytes which are essential for cell function, as insulin will force some electrolytes into the cell. Any underlying conditions (e.g. kidney disease) will also be treated in order to prevent further occurrences. [1] Following the administration of intravenous insulin, dextrose should be added once glucose levels reach the 250-300mg/dL target level. It is important to prevent a rapid reduction in osmolality so as to avoid cerebral edema. Dependent on serum potassium levels, a potassium replacement should be administered if sodium levels are maintained. [2]

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<span class="mw-page-title-main">Diabetic ketoacidosis</span> Medical condition

Diabetic ketoacidosis (DKA) is a potentially life-threatening complication of diabetes mellitus. Signs and symptoms may include vomiting, abdominal pain, deep gasping breathing, increased urination, weakness, confusion and occasionally loss of consciousness. A person's breath may develop a specific "fruity" smell. The onset of symptoms is usually rapid. People without a previous diagnosis of diabetes may develop DKA as the first obvious symptom.

<span class="mw-page-title-main">Clinical chemistry</span> Area of clinical pathology that is generally concerned with analysis of bodily fluids

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<span class="mw-page-title-main">Ketosis</span> Using body fats as fuel instead of carbohydrates

Ketosis is a metabolic state characterized by elevated levels of ketone bodies in the blood or urine. Physiological ketosis is a normal response to low glucose availability, such as low-carbohydrate diets or fasting, that provides an additional energy source for the brain in the form of ketones. In physiological ketosis, ketones in the blood are elevated above baseline levels, but the body's acid–base homeostasis is maintained. This contrasts with ketoacidosis, an uncontrolled production of ketones that occurs in pathologic states and causes a metabolic acidosis, which is a medical emergency. Ketoacidosis is most commonly the result of complete insulin deficiency in type 1 diabetes or late-stage type 2 diabetes. Ketone levels can be measured in blood, urine or breath and are generally between 0.5 and 3.0 millimolar (mM) in physiological ketosis, while ketoacidosis may cause blood concentrations greater than 10 mM.

<span class="mw-page-title-main">Diabetic coma</span> Medical condition

Diabetic coma is a life-threatening but reversible form of coma found in people with diabetes mellitus.

<span class="mw-page-title-main">Rhabdomyolysis</span> Human disease (condition) in which damaged skeletal muscle breaks down rapidly

Rhabdomyolysis is a condition in which damaged skeletal muscle breaks down rapidly, often due to high intensity exercise over a short period of time. Symptoms may include muscle pains, weakness, vomiting, and confusion. There may be tea-colored urine or an irregular heartbeat. Some of the muscle breakdown products, such as the protein myoglobin, are harmful to the kidneys and can cause acute kidney injury.

<span class="mw-page-title-main">Blood sugar level</span> Concentration of glucose present in the blood (Glycaemia)

The blood sugar level, blood sugar concentration, blood glucose level, or glycemia is the measure of glucose concentrated in the blood. The body tightly regulates blood glucose levels as a part of metabolic homeostasis.

<span class="mw-page-title-main">Renal physiology</span> Study of the physiology of the kidney

Renal physiology is the study of the physiology of the kidney. This encompasses all functions of the kidney, including maintenance of acid-base balance; regulation of fluid balance; regulation of sodium, potassium, and other electrolytes; clearance of toxins; absorption of glucose, amino acids, and other small molecules; regulation of blood pressure; production of various hormones, such as erythropoietin; and activation of vitamin D.

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<span class="mw-page-title-main">Hyperkalemia</span> Medical condition with excess potassium

Hyperkalemia is an elevated level of potassium (K+) in the blood. Normal potassium levels are between 3.5 and 5.0 mmol/L (3.5 and 5.0 mEq/L) with levels above 5.5 mmol/L defined as hyperkalemia. Typically hyperkalemia does not cause symptoms. Occasionally when severe it can cause palpitations, muscle pain, muscle weakness, or numbness. Hyperkalemia can cause an abnormal heart rhythm which can result in cardiac arrest and death.

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Alcoholic ketoacidosis (AKA) is a specific group of symptoms and metabolic state related to alcohol use. Symptoms often include abdominal pain, vomiting, agitation, a fast respiratory rate, and a specific "fruity" smell. Consciousness is generally normal. Complications may include sudden death.

<span class="mw-page-title-main">Electrolyte imbalance</span> Medical condition

Electrolyte imbalance, or water-electrolyte imbalance, is an abnormality in the concentration of electrolytes in the body. Electrolytes play a vital role in maintaining homeostasis in the body. They help to regulate heart and neurological function, fluid balance, oxygen delivery, acid–base balance and much more. Electrolyte imbalances can develop by consuming too little or too much electrolyte as well as excreting too little or too much electrolyte. Examples of electrolytes include calcium, chloride, magnesium, phosphate, potassium, and sodium.

<span class="mw-page-title-main">Glycosuria</span> Medical condition

Glycosuria is the excretion of glucose into the urine. Ordinarily, urine contains no glucose because the kidneys are able to reabsorb all of the filtered glucose from the tubular fluid back into the bloodstream. Glycosuria is nearly always caused by elevated blood glucose levels, most commonly due to untreated diabetes mellitus. Rarely, glycosuria is due to an intrinsic problem with glucose reabsorption within the kidneys, producing a condition termed renal glycosuria. Glycosuria leads to excessive water loss into the urine with resultant dehydration, a process called osmotic diuresis.

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<span class="mw-page-title-main">Ketonuria</span> Medical condition

Ketonuria is a medical condition in which ketone bodies are present in the urine.

Hyperosmolar hyperglycemic state (HHS), also known as hyperosmolar non-ketotic state (HONK), is a complication of diabetes mellitus in which high blood sugar results in high osmolarity without significant ketoacidosis. Symptoms include signs of dehydration, weakness, leg cramps, vision problems, and an altered level of consciousness. Onset is typically over days to weeks. Complications may include seizures, disseminated intravascular coagulopathy, mesenteric artery occlusion, or rhabdomyolysis.

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Complications of diabetes are secondary diseases that are a result of elevated blood glucose levels that occur in diabetic patients. These complications can be divided into two types: acute and chronic. Acute complications are complications that develop rapidly and can be exemplified as diabetic ketoacidosis (DKA), hyperglycemic hyperosmolar state (HHS), lactic acidosis (LA), and hypoglycemia. Chronic complications develop over time and are generally classified in two categories: microvascular and macrovascular. Microvascular complications include neuropathy, nephropathy, and retinopathy; while cardiovascular disease, stroke, and peripheral vascular disease are included in the macrovascular complications.

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References

  1. 1 2 3 4 Diabetic hyperosmolar syndrome
  2. 1 2 "Hyperosmolar Hyperglycemic State (HHS) - Endocrine and Metabolic Disorders - MSD Manual Professional Edition". MSD Manual Professional Edition. Retrieved 2018-09-25.