The structural formulas of glucose and fructose are as follows:

The structural formula of glucose: CH?OH(CHOH)?CHO.

The structural formula of fructose: CH?OH(CHOH)? -(C=O)-CH?OH.

1. Introduction of glucose:

Glucose is one of the most widely distributed monosaccharides in nature, and it is a very important monosaccharide in nature, and it is the intermediate component of energy supply and metabolism of living cells, i.e. glucose is the main source of energy supply of living cells. Glucose has a very important position in the field of biology and is an important source of energy supply for the human body.

2, fructose introduction:

Fructose is used as a diluent for injections; it is used for rehydration therapy for patients in insulin-resistant states such as burn trauma, postoperative and infections, or for patients who need to be rehydrated or energized when glucose is not suitable. Fructose different dosage forms, different specifications of the dosage may vary, please read the specific instructions for use of the drug, or follow the doctor's advice.

Precautions for the use of glucose and fructose:

I. Precautions for the use of glucose:

1. Edematous diseases, such as nephrotic syndrome, cirrhosis, ascites, congestive heart failure, acute left heart failure, cerebral edema and idiopathic edema.

2, acute renal failure oliguric stage, chronic renal failure with reduced urine output and poor response to diuretics.

3, hypertensive patients can not be used.

4, hypokalemia patients can not be used.

5, the elderly and pediatric rehydration volume and speed should be strictly controlled.

2, the use of fructose precautions:

1, renal insufficiency, acidosis tendency and hyperuricemia patients should be used with caution.

2, fructose overuse can cause severe acidosis, so it is not recommended to replace glucose in parenteral nutrition.

3. Clinical and laboratory indicators should be monitored during use to evaluate fluid balance, electrolyte concentration and acid-base balance.

4. Use with caution in the prevention of overhydration and electrolyte disorders.

5. Hypokalemia can be caused by overinfusion of potassium-free fructose. This product is not used to correct hyperkalemia.

6, fructose can exacerbate the oxidation of methanol into formaldehyde, so this product should not be used in the treatment of methanol poisoning.

7, fructose injection rate should be slow, not more than 0.5g/kg/hr is appropriate.