Author: Leo and Lucy
Keywords: dialysis
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| From google images |
For maintenance hemodialysis patients, each hemodialysis takes 4 to 5 hours, the patient may have to eat and drink during the dialysis process, but studies have shown that: eating will increase the risk of hemodialysis in low blood pressure, then dialysis The process of eating in the end will have any effect on the patient's blood pressure?
In the course of dialysis can eat gastrointestinal vagal nerve excitement, secretion of large amounts of digestive juice, abdominal vascular dilatation, blood redistribution in the digestive system, resulting in circulating blood volume and vascular volume imbalance, the effective cycle of blood volume, systemic circulation Filling pressure decreased sharply, back to reduce the amount of blood, cardiac output decreased, induced increased stress. In addition, the change of blood volume during the dialysis process also depends on the ultrafiltration rate and the rate of blood vessel refilling during dialysis. The larger ultrafiltration rate makes the ultrafiltration rate greater than the rapid refilling rate of the liquid from the surrounding tissue gap to the vascular cavity, The lack of blood volume and cardiac output reduction, and ultimately cause hypotension. In the late dialysis patients are close to the dry mass, then the blood vessel refill rate is very low, once the blood redistribution to the visceral blood vessels, effective blood volume was insufficient, and then low blood pressure.
At the same time, the time of hemodialysis in the development of low blood pressure is also affected, the study shows that during the dialysis process than non-fasters increased the incidence of hypotension, especially after 3h of dialysis, the incidence of hypotension increased significantly The It has also been reported that patients with diabetic nephropathy within 2h of eating, can reduce the incidence of low blood pressure in dialysis. Therefore, patients should be based on their own situation to choose the best eating time, so that it may be effective in preventing the occurrence of hypotension.
As in the process of dialysis blood flow, digestive function, metabolism will accelerate, so that dialysis patients are susceptible to hunger, from dialysis safety and dialysis effect, in principle, dialysis or not eating as well. But hungry and can not eat, so give you some advice: must be eaten before dialysis, should eat some high-quality protein and some high-calorie foods, this will be added to a certain extent, dialysis lost protein, heat, also Will maintain the stability of blood pressure. Dialysis process can be a small amount of drinking water, if you feel hungry or sweating, hypotension and other symptoms, you can eat as appropriate 15 ~ 30g sugar, sugar will soon be able to enter the body to play a role. If you have to eat, should eat some soft, easy to digest, light food, the body's discomfort to a minimum.
