Salt and fluid balance in newborn XXXX .

@entity1 @entity3489 @entity1372 @entity2753
About 5 years ago it was widely thought that preterm @entity1 should be supplemented with extra @entity1372 to avoid @entity2753 . It has, however, to be pointed out that VLBW @entity1 during the first postnatal week run a risk of developing @entity3489 which makes it difficult to give general recommendations for @entity1372 supplementation. Since the serum @entity1372 level depends not only upon the balance between @entity1372 intake and @entity1372 excretion but also upon the water balance which may vary depending on the clinical condition of the baby, it seems advisable to monitor the serum @entity1372 level in all preterm @entity1 . Supplementation should be given in case of @entity2753 . In instances of @entity2753 it also has to be considered if the @entity1 due to positive fluid balance has retained fluid in excess of @entity1372 . As a general conclusion the importance of monitoring @entity1372 balance in every preterm @entity1 should be stressed. Disturbances are most likely to occur in VLBW @entity1 and in @entity1 with acute illnesses. The best way of assisting fluid balance is by repeated accurate measurements of the body weight. It should, however, be kept in ming that no reliable methods are available for the measurement of the body weight of a preterm @entity1 who is under intensive care and who cannot be taken out of the incubator. Serum @entity1372 levels may give information of the @entity1372 balance but it has to be stressed that fluid and @entity1372 balances are always interrelated and that it is desirable to have simultaneous estimations of both balances. Excess retention of fluid may be caused primarily by excess retention of @entity1372 or by fluid.(ABSTRACT TRUNCATED AT 250 WORDS)
