What is galactose tolerance test?

galactose tolerance test a laboratory test done to determine the liver’s ability to convert the sugar galactose into glycogen. Two methods may be used. The oral method requires about 5 hours to complete, and the intravenous method, which is more accurate, requires about 2 hours.

What is FBS test?

Fasting Blood Sugar (FBS or Fasting Glucose) A test that measures blood sugar levels. Elevated levels are associated with diabetes and insulin resistance, in which the body cannot properly handle sugar (e.g. obesity).

What is glucose biochemistry?

Glucose (C6H12O6, also known as D-glucose, dextrose, or grape sugar) is a simple sugar (monosaccharide) and an important carbohydrate in biology. Cells use it as a source of energy and a metabolic intermediate. D-glucose is often referred to as dextrose. The term dextrose is derived from dextrorotatory glucose.

How do I read my GTT results?

Results

1. A normal blood glucose level is lower than 140 mg/dL (7.8 mmol/L).
2. A blood glucose level between 140 and 199 mg/dL (7.8 and 11 mmol/L) is considered impaired glucose tolerance, or prediabetes.
3. A blood glucose level of 200 mg/dL (11.1 mmol/L) or higher may indicate diabetes.

What is the clinical significance of galactose in urine?

THE F, XCRETION of galactose in the urine is an important clinical symptom which may indicate a severe defect in the metabo- lism of galactose, such as galactose intoler- ance (hereditary galactosemia)1, 2 or the re- cently described galactokinase deficiency.

What is the meaning of galactosemia?

Galactosemia is a disorder that affects how the body processes a simple sugar called galactose. A small amount of galactose is present in many foods. It is primarily part of a larger sugar called lactose, which is found in all dairy products and many baby formulas.

What is FBS and PPBS test?

Fasting Blood Sugar Test (FBS) Post-Prandial Blood Sugar (PPBS)

Which is more accurate HbA1c and FBS?

Generally, FBS was a more accurate predictor for HbA1c compared with HbA1c as a predictor of FBS. Although the optimum cutoff point of HbA1c was >6.15\%, its precision was comparable with the conventional cutoff point of >6\%.

Where is galactose found?

dairy products
Sources. Galactose is found in dairy products, avocados, sugar beets, other gums and mucilages. It is also synthesized by the body, where it forms part of glycolipids and glycoproteins in several tissues; and is a by-product from the third-generation ethanol production process (from macroalgae).

How is galactose metabolized in the body?

Galactose is metabolized by means of the Leloir pathway, which allows it to undergo either gluconeogenesis or glycolysis. The initial step in this pathway is the conversion of β-d-galactose to α-d-galactose by mutarotase.

What is GTT test normal range?

gtt normal value The OGTT normal range for after 2 hour test results is between 140 – 199 mg/dL for pre diabetes, 200 mg/dL or greater for diabetes and greater than 153 mg/dL for gestational diabetes.