fat-soluble vitamins

A type of vitamin in which a fat-soluble vitamin is dissolved in an organic solvent and is insoluble in water. Including vitamin A, vitamin D, vitamin E and vitamin K. Abnormal results Fat-soluble vitamins can be dissolved in fat, are not easily excreted, and can be stored in the body, so no daily supply is required. They all contain a ring structure and a long, aliphatic hydrocarbon chain, which, although each has at least one polar group, is highly hydrophobic. Some fat-soluble vitamins are precursors to coenzymes and can be used by organisms without chemical modification. These vitamins can be stored in animals. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: Actively cooperate with the doctor's work requirements. Normal value Vitamin A, retinol normal conditions 0.5 ~ 2.1μmol / L. Vitamin D, normal condition 25-dihydroxyvitamin D adult 5.0～11.8nmol/L, children 3.1～10.8nmol/L, 25-hydroxyvitamin D, summer 38～200nmol/L, winter 35～105nmol/L, 1.25-two Hydroxyvitamin D is 58-108 pmol/L in adults >60 years old, 41-77 pmol/L. Vitamin E, tocopherol, normal conditions 11.6 ~ 46.4μmol / L. Vitamin K test, normal situation 2.88 ± 1.4nmol / L (X ± ISD). Clinical significance Abnormal result Fat-soluble vitamins can be dissolved in fat, are not easily excreted, and can be stored in the body, so no daily supply is required. Excessive administration can easily cause poisoning. Symptoms develop slowly in the absence of it. People who need to be checked A condition that is manifested by a deficiency or excess of fat-soluble vitamins, including those with stunting and vitamin poisoning. Low results may be diseases: vitamin C deficiency, vitamin B1 deficiency, high disease, possible diseases: vitamin A poisoning, vitamin E deficiency in children, vitamin D poisoning precautions Requirements for inspection: Actively cooperate with the doctor's work requirements. Inspection process A certain amount of blood is taken, and after the blood is treated, a diagnostic reagent is added or an instrument is tested to measure the content of the fat-soluble vitamin. Not suitable for the crowd 1. Patients who have taken contraceptives, thyroid hormones, steroid hormones, etc., may affect the results of the examination and prohibit patients who have recently taken the drug history. 2, special diseases: patients with hematopoietic function to reduce disease, such as leukemia, various anemia, myelodysplastic syndrome, etc., unless the examination is essential, try to draw less blood. Adverse reactions and risks 1, subcutaneous hemorrhage: due to pressing time less than 5 minutes or blood draw technology is not enough, etc. can cause subcutaneous bleeding. 2, discomfort: the puncture site may appear pain, swelling, tenderness, subcutaneous ecchymosis visible to the naked eye. 3, dizzy or fainting: in the blood draw, due to emotional overstress, fear, reflex caused by vagus nerve excitement, blood pressure decreased, etc. caused by insufficient blood supply to the brain caused by fainting or dizziness. 4. Risk of infection: If you use an unclean needle, you may be at risk of infection.