RT Journal A1 DENNING CR T1 HYpoprothrombinemic bleeding in an infant JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1969 FD October 1 VO 118 IS 4 SP 669 OP 669 DO 10.1001/archpedi.1969.02100040671029 UL http://dx.doi.org/10.1001/archpedi.1969.02100040671029 AB To the Editor.—The case report of an infant with hypoprothrombinemic bleeding by Dr. M. H. Moss (Amer J Dis Child117: 540-542 [May] 1969) raises the question of whether the patient described may have cystic fibrosis.We have had a number of patients with cystic fibrosis present with similar hypoprothrombinemic bleeding episodes prior to the diagnosis of this disease. Once these infants were placed on a low fat diet and pancreatic supplements, no further bleeding difficulty of this type was encountered. Because of our experience, it would seem that cystic fibrosis should be considered (if it was not) as a possible cause for this infant's symptoms and that studies, such as a sweat test, be carried out.