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Metformin Contraindications Usmle

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Why metformin can cause lactic acidosis - Find out more explanation for : 'Why metformin can cause lactic acidosis' only from this channel. Information Source: google

Why Does Metformin Cause Lactic Acidosis Usmle

Why does metformin cause lactic acidosis usmle Why does metformin cause lactic acidosis usmle The Most Common Side Effect of Metformin USMLE Step 2 CK Forum C. Lactic acidosis It is extremely rare for metformin to cause a megaloblastic anemia Can anyone please explain how metformin causes lactic acidosis It is contraindicated in pts with Renal hepatic failureSummary. Metformin rarely, if ever, causes lactic acidosis when it is used as labeled. Metformin is associated with lactic acidosis in patients with conditions that can themselves causeMetformin-Associated Lactic Acidosis phenfonnin cause lactic acidosis is to Metformin-Associated Lactic Acidosis Metformin does not undergo hepatic Some argue that metformin itself does not cause lactic acidosis, that it is actually due to the underlying conditions such as renal failure and diabetes mellitus.Combination drugs containing metformin can cause lactic acidosis. and DiaBeta can be substituted for Actos. They can either be used alone or with Question. The use of metformin in patients with renal impairment is associated with an increased risk for lactic acidosis. Why is this and what is the mechanism?An overdose of metformin may cause l Continue reading >>

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Popular Questions

  1. drnrpatel

    A 50-year-old African-American woman returns to the clinic for a follow-up appointment for diabetes treatment. At her last visit, she was screened for diabetes because both of her parents and one of her two sisters have diabetes. After being found to have repeatedly elevated fasting blood glucose levels, the patient was given diabetic education and tried on a course of diet and exercise. While she has no specific complaints today and is pleased that she has lost 4 lb over the last 6 months, her fasting blood glucose is 130 mg/dL and a hemoglobin A1C level is 7.7%. After a lengthy discussion with the patient, it is decided that she should start therapy with metformin as well as continue her dietary controls and exercise regimen. Which of the following is the most common side effect for which she is at risk when starting this therapy?
    A. Anemia, megaloblastic
    B. Gastrointestinal distress
    C. Lactic acidosis
    D. Liver function abnormalities
    E. Weight gain

  2. Chemole

    Quote:

    Originally Posted by rulz
    Latic ACidosis.... Acidosis lactica

  3. ag2011n

    The most common side effect is Gastrointestinal distress, so I go for B.

  4. -> Continue reading
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Watch exclusive conversation with Kiran Mazumdar Shaw, CMD of Biocon & S Srinivasan of All India Drug Action Network on how will Medical Council Of India's guidelines impact the pharma cos & pharmacies.

Diabetes Drugs - Endocrine - Medbullets Step 1

Metformin is absolutely contraindicated in patients with renal failure due to the risk of lactic acidosis. An elevated serum creatinine suggests a decrease in GFR and the presence of renal failure. Metformin is a drug in the biguanide class used to treat diabetes mellitus type II. Metformin treats hyperglycemia by inhibiting gluconeogenesis. Metformin carries no risk of hypoglycemia, but is known to occasionally cause lactic acidosis in patients with renal failure, liver dysfunction, CHF, alcoholism, and sepsis. Vecchio et al. reviews metformin-induced lactic acidosis. They report that metformin is overall a safe drug when correctly used but is associated with lactic acidosis in rare cases. The most common condition in which this condition occurs is with renal insufficiency. Recent evidence has called into question the significance of the risk of lactic acidosis while using metformin. According to an April 2012 Cochrane review by Salpeter et al., there is no evidence from comparative trials or from observational cohort studies that metformin is associated with an increased risk of lactic acidosis when compared to other anti-hyperglycemic treatments. Illustration A depicts the acti Continue reading >>

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Popular Questions

  1. drnrpatel

    A 50-year-old African-American woman returns to the clinic for a follow-up appointment for diabetes treatment. At her last visit, she was screened for diabetes because both of her parents and one of her two sisters have diabetes. After being found to have repeatedly elevated fasting blood glucose levels, the patient was given diabetic education and tried on a course of diet and exercise. While she has no specific complaints today and is pleased that she has lost 4 lb over the last 6 months, her fasting blood glucose is 130 mg/dL and a hemoglobin A1C level is 7.7%. After a lengthy discussion with the patient, it is decided that she should start therapy with metformin as well as continue her dietary controls and exercise regimen. Which of the following is the most common side effect for which she is at risk when starting this therapy?
    A. Anemia, megaloblastic
    B. Gastrointestinal distress
    C. Lactic acidosis
    D. Liver function abnormalities
    E. Weight gain

  2. Chemole

    Quote:

    Originally Posted by rulz
    Latic ACidosis.... Acidosis lactica

  3. ag2011n

    The most common side effect is Gastrointestinal distress, so I go for B.

  4. -> Continue reading
read more
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What is HEART FAILURE? What does HEART FAILURE mean? HEART FAILURE meaning & explanation. Heart failure (HF), often referred to as congestive heart failure (CHF), occurs when the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs. Signs and symptoms commonly include shortness of breath, excessive tiredness, and leg swelling. The shortness of breath is usually worse with exercise, while lying down, and may wake the person at night. A limited ability to exercise is also a common feature. Chest pain, including angina, does not typically occur due to heart failure. Common causes of heart failure include coronary artery disease including a previous myocardial infarction (heart attack), high blood pressure, atrial fibrillation, valvular heart disease, excess alcohol use, infection, and cardiomyopathy of an unknown cause. These cause heart failure by changing either the structure or the functioning of the heart. There are two main types of heart failure: heart failure due to left ventricular dysfunction and heart failure with normal ejection fraction depending on whether the ability of the left ventricle to contract is affected, or the heart's ability to relax. The severity of disease is usually graded by the degree of problems with exercise. Heart failure is not the same as myocardial infarction (in which part of the heart muscle dies) or cardiac arrest (in which blood flow stops altogether). Other diseases that may have symptoms similar to heart failure include obesity, kidney failure, liver problems, anemia and thyroid disease. The condition is diagnosed based on the history of the symptoms and a physical examination with confirmation by echocardiography. Blood tests, electrocardiography, and chest radiography may be useful to determine the underlying cause. Treatment depends on the severity and cause of the disease. In people with chronic stable mild heart failure, treatment commonly consists of lifestyle modifications such as stopping smoking, physical exercise, and dietary changes, as well as medications. In those with heart failure due to left ventricular dysfunction, angiotensin converting enzyme inhibitors or angiotensin receptor blockers along with beta blockers are recommended. For those with severe disease, aldosterone antagonists, or hydralazine with a nitrate may be used. Diuretics are useful for preventing fluid retention. Sometimes, depending on the cause, an implanted device such as a pacemaker or an implantable cardiac defibrillator may be recommended. In some moderate or severe cases cardiac resynchronization therapy (CRT) may be suggested or cardiac contractility modulation may be of benefit. A ventricular assist device or occasionally a heart transplant may be recommended in those with severe disease despite all other measures. Heart failure is a common, costly, and potentially fatal condition. In developed countries, around 2% of adults have heart failure and in those over the age of 65, this increases to 610%. In the year after diagnosis the risk of death is about 35% after which it decreases to below 10% each year. This is similar to the risks with a number of types of cancer. In the United Kingdom the disease is the reason for 5% of emergency hospital admissions. Heart failure has been known since ancient times with the Ebers papyrus commenting on it around 1550 BCE.

Metformin, Heart Failure, And Lactic Acidosis: Is Metformin Absolutely Contraindicated?

Many patients with type 2 diabetes are denied treatment with metformin because of “contraindications” such as cardiac failure, which may not be absolute contraindications Summary points Treatment with metformin is not associated with an increased risk of lactic acidosis among patients with type 2 diabetes mellitus who have no cardiac, renal, or liver failure Despite increasing disregard of contraindications to metformin by physicians, the incidence of lactic acidosis has not increased, so metformin may be safe even in patients with “contraindications” The vast majority of case reports relating metformin to lactic acidosis report at least one other disease/illness that could result in lactic acidosis Use of metformin in patients with heart failure might be associated with lower mortality and morbidity, with no increase in hospital admissions and no documented increased risk of lactic acidosis Further studies are needed to assess the risk of lactic acidosis in patients with type 2 diabetes and traditional contraindications to metformin Metformin first became available in the United Kingdom in 1957 but was first prescribed in the United States only in 1995.w1 The mechanism of Continue reading >>

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Popular Questions

  1. drnrpatel

    A 50-year-old African-American woman returns to the clinic for a follow-up appointment for diabetes treatment. At her last visit, she was screened for diabetes because both of her parents and one of her two sisters have diabetes. After being found to have repeatedly elevated fasting blood glucose levels, the patient was given diabetic education and tried on a course of diet and exercise. While she has no specific complaints today and is pleased that she has lost 4 lb over the last 6 months, her fasting blood glucose is 130 mg/dL and a hemoglobin A1C level is 7.7%. After a lengthy discussion with the patient, it is decided that she should start therapy with metformin as well as continue her dietary controls and exercise regimen. Which of the following is the most common side effect for which she is at risk when starting this therapy?
    A. Anemia, megaloblastic
    B. Gastrointestinal distress
    C. Lactic acidosis
    D. Liver function abnormalities
    E. Weight gain

  2. Chemole

    Quote:

    Originally Posted by rulz
    Latic ACidosis.... Acidosis lactica

  3. ag2011n

    The most common side effect is Gastrointestinal distress, so I go for B.

  4. -> Continue reading
read more

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