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Metabolic Acidosis Levels

Metabolic Acidosis

Metabolic Acidosis

Metabolic acidosis occurs when the body produces too much acid. It can also occur when the kidneys are not removing enough acid from the body. There are several types of metabolic acidosis. Diabetic acidosis develops when acidic substances, known as ketone bodies, build up in the body. This most often occurs with uncontrolled type 1 diabetes. It is also called diabetic ketoacidosis and DKA. Hyperchloremic acidosis results from excessive loss of sodium bicarbonate from the body. This can occur with severe diarrhea. Lactic acidosis results from a buildup of lactic acid. It can be caused by: Alcohol Cancer Exercising intensely Liver failure Medicines, such as salicylates Other causes of metabolic acidosis include: Kidney disease (distal renal tubular acidosis and proximal renal tubular acidosis) Poisoning by aspirin, ethylene glycol (found in antifreeze), or methanol Continue reading >>

Metabolic Acidosis

Metabolic Acidosis

Patient professional reference Professional Reference articles are written by UK doctors and are based on research evidence, UK and European Guidelines. They are designed for health professionals to use. You may find one of our health articles more useful. See also separate Lactic Acidosis and Arterial Blood Gases - Indications and Interpretations articles. Description Metabolic acidosis is defined as an arterial blood pH <7.35 with plasma bicarbonate <22 mmol/L. Respiratory compensation occurs normally immediately, unless there is respiratory pathology. Pure metabolic acidosis is a term used to describe when there is not another primary acid-base derangement - ie there is not a mixed acid-base disorder. Compensation may be partial (very early in time course, limited by other acid-base derangements, or the acidosis exceeds the maximum compensation possible) or full. The Winter formula can be helpful here - the formula allows calculation of the expected compensating pCO2: If the measured pCO2 is >expected pCO2 then additional respiratory acidosis may also be present. It is important to remember that metabolic acidosis is not a diagnosis; rather, it is a metabolic derangement that indicates underlying disease(s) as a cause. Determination of the underlying cause is the key to correcting the acidosis and administering appropriate therapy[1]. Epidemiology It is relatively common, particularly among acutely unwell/critical care patients. There are no reliable figures for its overall incidence or prevalence in the population at large. Causes of metabolic acidosis There are many causes. They can be classified according to their pathophysiological origin, as below. The table is not exhaustive but lists those that are most common or clinically important to detect. Increased acid Continue reading >>

Acid Base Disorders

Acid Base Disorders

Arterial blood gas analysis is used to determine the adequacy of oxygenation and ventilation, assess respiratory function and determine the acid–base balance. These data provide information regarding potential primary and compensatory processes that affect the body’s acid–base buffering system. Interpret the ABGs in a stepwise manner: Determine the adequacy of oxygenation (PaO2) Normal range: 80–100 mmHg (10.6–13.3 kPa) Determine pH status Normal pH range: 7.35–7.45 (H+ 35–45 nmol/L) pH <7.35: Acidosis is an abnormal process that increases the serum hydrogen ion concentration, lowers the pH and results in acidaemia. pH >7.45: Alkalosis is an abnormal process that decreases the hydrogen ion concentration and results in alkalaemia. Determine the respiratory component (PaCO2) Primary respiratory acidosis (hypoventilation) if pH <7.35 and HCO3– normal. Normal range: PaCO2 35–45 mmHg (4.7–6.0 kPa) PaCO2 >45 mmHg (> 6.0 kPa): Respiratory compensation for metabolic alkalosis if pH >7.45 and HCO3– (increased). PaCO2 <35 mmHg (4.7 kPa): Primary respiratory alkalosis (hyperventilation) if pH >7.45 and HCO3– normal. Respiratory compensation for metabolic acidosis if pH <7.35 and HCO3– (decreased). Determine the metabolic component (HCO3–) Normal HCO3– range 22–26 mmol/L HCO3 <22 mmol/L: Primary metabolic acidosis if pH <7.35. Renal compensation for respiratory alkalosis if pH >7.45. HCO3 >26 mmol/L: Primary metabolic alkalosis if pH >7.45. Renal compensation for respiratory acidosis if pH <7.35. Additional definitions Osmolar Gap Use: Screening test for detecting abnormal low MW solutes (e.g. ethanol, methanol & ethylene glycol [Reference]) An elevated osmolar gap (>10) provides indirect evidence for the presence of an abnormal solute which is prese Continue reading >>

Acidosis

Acidosis

When your body fluids contain too much acid, it’s known as acidosis. Acidosis occurs when your kidneys and lungs can’t keep your body’s pH in balance. Many of the body’s processes produce acid. Your lungs and kidneys can usually compensate for slight pH imbalances, but problems with these organs can lead to excess acid accumulating in your body. The acidity of your blood is measured by determining its pH. A lower pH means that your blood is more acidic, while a higher pH means that your blood is more basic. The pH of your blood should be around 7.4. According to the American Association for Clinical Chemistry (AACC), acidosis is characterized by a pH of 7.35 or lower. Alkalosis is characterized by a pH level of 7.45 or higher. While seemingly slight, these numerical differences can be serious. Acidosis can lead to numerous health issues, and it can even be life-threatening. There are two types of acidosis, each with various causes. The type of acidosis is categorized as either respiratory acidosis or metabolic acidosis, depending on the primary cause of your acidosis. Respiratory acidosis Respiratory acidosis occurs when too much CO2 builds up in the body. Normally, the lungs remove CO2 while you breathe. However, sometimes your body can’t get rid of enough CO2. This may happen due to: chronic airway conditions, like asthma injury to the chest obesity, which can make breathing difficult sedative misuse deformed chest structure Metabolic acidosis Metabolic acidosis starts in the kidneys instead of the lungs. It occurs when they can’t eliminate enough acid or when they get rid of too much base. There are three major forms of metabolic acidosis: Diabetic acidosis occurs in people with diabetes that’s poorly controlled. If your body lacks enough insulin, keton Continue reading >>

Metabolic Acidosis - An Overview | Sciencedirect Topics

Metabolic Acidosis - An Overview | Sciencedirect Topics

Metabolic acidosis is a process that leads to the accumulation of H+ ions and the decrease in the content of HCO3 ions in the body. Larry R. Engelking, in Textbook of Veterinary Physiological Chemistry (Third Edition) , 2015 Metabolic acidosis is the most common acid-base disorder recognized in domestic animals. Like in respiratory alkalosis (see Chapter 91), the bicarbonate buffer equation is shifted to the left in metabolic acidosis (Fig. 87-1). Also, with an excess acid load or decreased urinary acid excretion, either an increased or normal plasma AG can be seen (see Table 86-1). What determines whether the AG will increase in metabolic acidosis? Whenever H+ is added to the system, HCO3 is consumed. The hydrogen cation cannot be added without an anion. Therefore, for each HCO3 consumed, a negative charge of some other type (which accompanied the H+) is added to body fluids. If the anion happens to be Cl, no change in the AG will develop. However, if it is any other anion, the AG will be increased. Kamel S. Kamel MD, FRCPC, Mitchell L. Halperin MD, FRCPC, in Fluid, Electrolyte and Acid-Base Physiology (Fifth Edition) , 2017 What is the cause of the metabolic acidosis in this patient? Metabolic acidosis in this patient was not simply the result of loss of NaHCO3 in diarrheal fluid because the PAnion gap was 26 mEq/L. L-Lactic acidosis is unlikely because there was no hemodynamic problem, liver function tests were normal, and the time period was too short for a nutritional deficiency (e.g., thiamin and/or riboflavin deficiency) that may have caused L-lactic acidosis. Moreover, he did not ingest drugs that may be associated with L-lactic acidosis. There was no history of diabetes mellitus or the intake of ethanol, and his blood sugar was normal. Later, L-lactic acidosis Continue reading >>

Metabolic Acidosis

Metabolic Acidosis

Metabolic acidosis is a condition that occurs when the body produces excessive quantities of acid or when the kidneys are not removing enough acid from the body. If unchecked, metabolic acidosis leads to acidemia, i.e., blood pH is low (less than 7.35) due to increased production of hydrogen ions by the body or the inability of the body to form bicarbonate (HCO3−) in the kidney. Its causes are diverse, and its consequences can be serious, including coma and death. Together with respiratory acidosis, it is one of the two general causes of acidemia. Terminology : Acidosis refers to a process that causes a low pH in blood and tissues. Acidemia refers specifically to a low pH in the blood. In most cases, acidosis occurs first for reasons explained below. Free hydrogen ions then diffuse into the blood, lowering the pH. Arterial blood gas analysis detects acidemia (pH lower than 7.35). When acidemia is present, acidosis is presumed. Signs and symptoms[edit] Symptoms are not specific, and diagnosis can be difficult unless the patient presents with clear indications for arterial blood gas sampling. Symptoms may include chest pain, palpitations, headache, altered mental status such as severe anxiety due to hypoxia, decreased visual acuity, nausea, vomiting, abdominal pain, altered appetite and weight gain, muscle weakness, bone pain, and joint pain. Those in metabolic acidosis may exhibit deep, rapid breathing called Kussmaul respirations which is classically associated with diabetic ketoacidosis. Rapid deep breaths increase the amount of carbon dioxide exhaled, thus lowering the serum carbon dioxide levels, resulting in some degree of compensation. Overcompensation via respiratory alkalosis to form an alkalemia does not occur. Extreme acidemia leads to neurological and cardia Continue reading >>

Metabolic Acidosis Nclex Review Notes

Metabolic Acidosis Nclex Review Notes

Are you studying metabolic acidosis and need to know a mnemonic on how to remember the causes? This article will give you a clever mnemonic and simplify the signs and symptoms and nursing interventions on how to remember metabolic acidosis for nursing lecture exams and NCLEX. In addition, you will learn how to differentiate metabolic acidosis from metabolic alkalosis. Don’t forget to take the metabolic acidosis and metabolic alkalosis quiz. This article will cover: Metabolic acidosis simplified Lab values expected with metabolic acidosis Causes of metabolic acidosis Signs and symptoms of metabolic acidosis Nursing interventions for metabolic acidosis Lecture on Metabolic Acidosis Metabolic Acidosis Metabolic Acidosis in Simple Terms: a metabolic problem due to the buildup of acid in the body fluids which affects the bicarbonate (HCO3 levels) either from: increased acid production (ex: DKA where ketones (acids) increase in the body which decreases bicarbonate) decreased acid excretion (ex: renal failure where there is high amount of waste left in the body which causes the acids to increase and bicarb can’t control imbalance) loss of too much bicarb (diarrhea) When this acidic phenomena is taking place in the body other systems will try to compensate to increase the bicarb back to normal. One system that tries to compensate is the respiratory system. In order to compensate, the respiratory system will cause the body to hyperventilate by increasing breathing through Kussmaul’s respirations. Kussmaul respirations are deep, rapid breathes. The body hopes this will help expel CO2 (an acid) which will “hopefully” increase the pH back to normal. Lab values expected in Metabolic Acidosis: HCO3: decreased <22 Blood pH: decreased <7.35 CO2: <35 or normal (may be normal b Continue reading >>

Common Laboratory (lab) Values - Abgs

Common Laboratory (lab) Values - Abgs

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Laboratory VALUES Home Page Arterial Blood Gases Arterial blood gas analysis provides information on the following: 1] Oxygenation of blood through gas exchange in the lungs. 2] Carbon dioxide (CO2) elimination through respiration. 3] Acid-base balance or imbalance in extra-cellular fluid (ECF). Normal Blood Gases Arterial Venous pH 7.35 - 7.45 7.32 - 7.42 Not a gas, but a measurement of acidity or alkalinity, based on the hydrogen (H+) ions present. The pH of a solution is equal to the negative log of the hydrogen ion concentration in that solution: pH = - log [H+]. PaO2 80 to 100 mm Hg. 28 - 48 mm Hg The partial pressure of oxygen that is dissolved in arterial blood. New Born – Acceptable range 40-70 mm Hg. Elderly: Subtract 1 mm Hg from the minimal 80 mm Hg level for every year over 60 years of age: 80 - (age- 60) (Note: up to age 90) HCO3 22 to 26 mEq/liter (21–28 mEq/L) 19 to 25 mEq/liter The calculated value of the amount of bicarbonate in the bloodstream. Not a blood gas but the anion of carbonic acid. PaCO2 35-45 mm Hg 38-52 mm Hg The amount of carbon dioxide dissolved in arterial blood. Measured. Partial pressure of arterial CO2. (Note: Large A= alveolor CO2). CO2 is called a “volatile acid” because it can combine reversibly with H2O to yield a strongly acidic H+ ion and a weak basic bicarbonate ion (HCO3 -) according to the following equation: CO2 + H2O <--- --> H+ + HCO3 B.E. –2 to +2 mEq/liter Other sources: normal reference range is between -5 to +3. The base excess indicates the amount of excess or insufficient level of bicarbonate in the system. (A negative base excess indicates a base deficit in the blood.) A negative base excess is equivalent to an acid excess. A value outside of the normal r Continue reading >>

Influence Of Metabolic Acidosis On Serum 1,25(oh)2d3 Levels In Chronic Renal Failure.

Influence Of Metabolic Acidosis On Serum 1,25(oh)2d3 Levels In Chronic Renal Failure.

Influence of metabolic acidosis on serum 1,25(OH)2D3 levels in chronic renal failure. Department of Medicine, Tri-Service General Hospital, Taipei, Taiwan. Metabolic acidosis has been shown to alter vitamin D metabolism. There is also evidence that calcium may modulate 1,25(OH)2D3 by a parathyroid hormone (PTH)-independent mechanism. To investigate the effect of rapid correction of chronic metabolic acidosis on serum 1,25(OH)2D3 levels by free calcium clamp in chronic renal failure, 20 patients with mild to moderate metabolic acidosis (mean pH 7.31 +/- 0.04) and secondary hyperparathyroidism (mean intact PTH 156.47 +/- 84.20 ng/l) were enrolled in this study. None had yet received any dialysis therapy. Metabolic acidosis was corrected by continuous bicarbonate infusion for 3-4 h until plasma pH was around 7.4, while plasma ionized calcium was held at the preinfusion level by calcium solution infusion during the entire procedure. The plasma pH, bicarbonate, total CO2, sodium, and serum total calcium levels were significantly increased while serum concentrations of alkaline phosphatase and albumin were significantly decreased after bicarbonate infusion. The plasma ionized calcium, potassium, serum magnesium, inorganic phosphorus, and 25(OH)D levels showed no significant change before and after bicarbonate infusion. The serum 1,25(OH)2D3 levels were significantly increased (38.66 +/- 11.77 vs. 47.04 +/- 16.56 pmol/l, p < 0.05) after correction of metabolic acidosis. These results demonstrate that rapid correction of metabolic acidosis raises serum 1,25(OH)2D3 levels in vitamin D-deficient chronic renal failure patients, and may underline the importance of maintaining normal acid-base homeostasis in the presence of secondary hyperparathyroidism in chronic renal failure. Continue reading >>

Metabolic Acidosis

Metabolic Acidosis

Metabolic Acidosis Definition Metabolic acidosis is a pH imbalance in which the body has accumulated too much acid and does not have enough bicarbonate to effectively neutralize the effects of the acid. Description Metabolic acidosis, as a disruption of the body's acid/base balance, can be a mild symptom brought on by a lack of insulin, a starvation diet, or a gastrointestinal disorder like vomiting and diarrhea. Metabolic acidosis can indicate a more serious problem with a major organ like the liver, heart, or kidneys. It can also be one of the first signs of drug overdose or poisoning. Causes and symptoms Metabolic acidosis occurs when the body has more acid than base in it. Chemists use the term "pH" to describe how acidic or basic a substance is. Based on a scale of 14, a pH of 7.0 is neutral. A pH below 7.0 is an acid; the lower the number, the stronger the acid. A pH above 7.0 is a base; the higher the number, the stronger the base. Blood pH is slightly basic (alkaline), with a normal range of 7.36-7.44. Acid is a natural by-product of the breakdown of fats and other processes in the body; however, in some conditions, the body does not have enough bicarbonate, an acid neutralizer, to balance the acids produced. This can occur when the body uses fats for energy instead of carbohydrates. Conditions where metabolic acidosis can occur include chronic alcoholism, malnutrition, and diabetic ketoacidosis. Consuming a diet low in carbohydrates and high in fats can also produce metabolic acidosis. The disorder may also be a symptom of another condition like kidney failure, liver failure, or severe diarrhea. The build up of lactic acid in the blood due to such conditions as heart failure, shock, or cancer, induces metabolic acidosis. Some poisonings and overdoses (aspirin, Continue reading >>

What Is Metabolic Acidosis?

What Is Metabolic Acidosis?

Metabolic acidosis happens when the chemical balance of acids and bases in your blood gets thrown off. Your body: Is making too much acid Isn't getting rid of enough acid Doesn't have enough base to offset a normal amount of acid When any of these happen, chemical reactions and processes in your body don't work right. Although severe episodes can be life-threatening, sometimes metabolic acidosis is a mild condition. You can treat it, but how depends on what's causing it. Causes of Metabolic Acidosis Different things can set up an acid-base imbalance in your blood. Ketoacidosis. When you have diabetes and don't get enough insulin and get dehydrated, your body burns fat instead of carbs as fuel, and that makes ketones. Lots of ketones in your blood turn it acidic. People who drink a lot of alcohol for a long time and don't eat enough also build up ketones. It can happen when you aren't eating at all, too. Lactic acidosis. The cells in your body make lactic acid when they don't have a lot of oxygen to use. This acid can build up, too. It might happen when you're exercising intensely. Big drops in blood pressure, heart failure, cardiac arrest, and an overwhelming infection can also cause it. Renal tubular acidosis. Healthy kidneys take acids out of your blood and get rid of them in your pee. Kidney diseases as well as some immune system and genetic disorders can damage kidneys so they leave too much acid in your blood. Hyperchloremic acidosis. Severe diarrhea, laxative abuse, and kidney problems can cause lower levels of bicarbonate, the base that helps neutralize acids in blood. Respiratory acidosis also results in blood that's too acidic. But it starts in a different way, when your body has too much carbon dioxide because of a problem with your lungs. Continue reading >>

Metabolic Acidosis

Metabolic Acidosis

What is metabolic acidosis? The buildup of acid in the body due to kidney disease or kidney failure is called metabolic acidosis. When your body fluids contain too much acid, it means that your body is either not getting rid of enough acid, is making too much acid, or cannot balance the acid in your body. What causes metabolic acidosis? Healthy kidneys have many jobs. One of these jobs is to keep the right balance of acids in the body. The kidneys do this by removing acid from the body through urine. Metabolic acidosis is caused by a build-up of too many acids in the blood. This happens when your kidneys are unable to adequately remove the acid from your blood. What are the signs and symptoms? Not everyone will have signs or symptoms. However, you may experience: Long and deep breaths Fast heartbeat Headache and/or confusion Weakness Feeling very tired Vomiting and/or feeling sick to your stomach (nausea) Loss of appetite If you experience any of these, it is important to let your healthcare provider know immediately. What are the complications of metabolic acidosis if I have kidney disease or kidney failure? Increased bone loss (osteoporosis): Metabolic acidosis can lead to a loss of bone in your body. This can lead to a higher chance of fractures in important bones like your hips or backbone. Progression of kidney disease: Metabolic acidosis can make your kidney disease worse. Exactly how this happens is not clear. As acid builds up, kidney function lowers; and as kidney function lowers, acid builds up. This can lead to the progression of kidney disease. Muscle loss: Albumin is an important protein in your body that helps build and keep muscles healthy. Metabolic acidosis lowers the amount of albumin created in your body, and leads to muscle loss, or what is called Continue reading >>

Simple Method Of Acid Base Balance Interpretation

Simple Method Of Acid Base Balance Interpretation

A FOUR STEP METHOD FOR INTERPRETATION OF ABGS Usefulness This method is simple, easy and can be used for the majority of ABGs. It only addresses acid-base balance and considers just 3 values. pH, PaCO2 HCO3- Step 1. Use pH to determine Acidosis or Alkalosis. ph < 7.35 7.35-7.45 > 7.45 Acidosis Normal or Compensated Alkalosis Step 2. Use PaCO2 to determine respiratory effect. PaCO2 < 35 35 -45 > 45 Tends toward alkalosis Causes high pH Neutralizes low pH Normal or Compensated Tends toward acidosis Causes low pH Neutralizes high pH Step 3. Assume metabolic cause when respiratory is ruled out. You'll be right most of the time if you remember this simple table: High pH Low pH Alkalosis Acidosis High PaCO2 Low PaCO2 High PaCO2 Low PaCO2 Metabolic Respiratory Respiratory Metabolic If PaCO2 is abnormal and pH is normal, it indicates compensation. pH > 7.4 would be a compensated alkalosis. pH < 7.4 would be a compensated acidosis. These steps will make more sense if we apply them to actual ABG values. Click here to interpret some ABG values using these steps. You may want to refer back to these steps (click on "linked" steps or use "BACK" button on your browser) or print out this page for reference. Step 4. Use HC03 to verify metabolic effect Normal HCO3- is 22-26 Please note: Remember, the first three steps apply to the majority of cases, but do not take into account: the possibility of complete compensation, but those cases are usually less serious, and instances of combined respiratory and metabolic imbalance, but those cases are pretty rare. "Combined" disturbance means HCO3- alters the pH in the same direction as the PaCO2. High PaCO2 and low HCO3- (acidosis) or Low PaCO2 and high HCO3- (alkalosis). Continue reading >>

Acid/base Disorders: Metabolic Acidosis

Acid/base Disorders: Metabolic Acidosis

Are there clinical practice guidelines to inform decision-making? Does this patient have metabolic acidosis? Metabolic acidosis is generally defined by the presence of a low serum bicarbonate concentration (normal range 22-28 mEq/L), although occasionally states can exist where the serum bicarbonate is normal with an elevated anion gap (e.g., patients with a lactic acidosis who have received a bicarbonate infusion or patients on hemodialysis). In general, a metabolic acidosis is associated with a low urine pH but depending on the presence or absence of a respiratory alkalosis, this may also be normal or elevated. Thus, a patient can have an acidosis but not be acidemic. Metabolic acidoses occur when there is excess acid in the plasma. In the basal state, the body generates about 12,000 to 13,000 mmol of carbon dioxide (CO2), and 1-1.5 mmol per kilogram body weight of nonvolatile acid. The body has a large buffering capacity, with CO2-HCO3 as the major buffer system. The two major routes of acid excretion are the lungs (for CO2) and the kidneys (for nonvolatile acids) A metabolic acidosis can be caused by three major mechanisms: 1) increased acid production; 2) bicarbonate loss; and 3) decreased renal acid excretion Increased acid production leads to anion-gap (AG) metabolic acidosis, and involves a variety of different clinical processes, see An anion gap acidosis may also result for ingestion of an acid load. Both bicarbonate loss and decreased renal acid excretion lead to normal-anion gap (NG) metabolic acidosis. When there is HCO3 loss, chloride is retained to maintain electrical neutrality. The different clinical processes are summarized in Toxic ingestions are common causes of AG metabolic acidosis. The commonest causes are methanol and ethylene glycol intoxicatio Continue reading >>

Metabolic Acidosis Workup: Approach Considerations, Laboratory Evaluation, Complete Blood Count

Metabolic Acidosis Workup: Approach Considerations, Laboratory Evaluation, Complete Blood Count

Author: Christie P Thomas, MBBS, FRCP, FASN, FAHA; Chief Editor: Vecihi Batuman, MD, FASN more... Often the first clue to metabolic acidosis is a decreased serum HCO3- concentration observed when serum electrolytes are measured. Remember, however, that a decreased serum [HCO3-] level can be observed as a compensatory response to respiratory alkalosis. An [HCO3-] level of less than 15 mEq/L, however, almost always is due, at least in part, to metabolic acidosis. The only definitive way to diagnose metabolic acidosis is by simultaneous measurement of serum electrolytes and arterial blood gases (ABGs) , which shows pH and PaCO2 to be low; calculated HCO3- also is low. (For more information, see Metabolic Alkalosis .) A low serum HCO3- and a pH of less than 7.40 upon ABG analysis confirm metabolic acidosis. Go to Pediatric Metabolic Acidosis and Emergent Management of Metabolic Acidosis for complete information on these topics. The diagnosis is made by evaluating serum electrolytes and ABGs. A low serum HCO3- and a pH of less than 7.40 upon ABG analysis confirm metabolic acidosis. The anion gap (AG) should be calculated to help with the differential diagnosis of the metabolic acidosis and to diagnose mixed disorders. In general, a high-AG acidosis is present if the AG is greater than 10-12 mEq/L, and a non-AG acidosis is present if the AG is less than or equal to 10-12 mEq/L. It is important to note that the AG decreases by 2.5 mEq for every 1 g/dL decrease in serum albumin. If the AG is elevated, the osmolar gap should be calculated by subtracting the calculated serum osmolality from the measured serum osmolality. Ethylene glycol and methanol poisoning increase the AG and the osmolar gap. Acetone, produced by decarboxylation of acetoacetate, can also raise serum osmolalit Continue reading >>

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