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J Pediatr Surg. 1991 Jan;26(1):55-7.

Bladder capacity in infants.

Author information

1
Wessex Department of Paediatric Radiology, Southampton General Hospital, England.

Abstract

Bladder capacity was measured at micturating cystourethrography and normal ranges were established for children up to 1 year of age. Bladder capacity was compared with patient weight and distance from first lumbar to third lumbar vertebrae (L1 to L3). The simplified formula--Capacity (mL) = 7 x weight (kg)--was shown to give a reliable estimate of the expected bladder capacity in infants independent of age; this is useful in those infants whose weight lies outside the normal range for their age. Similarly, a formula was deduced relating expected bladder capacity to the measured L1 to L3 distance on an anteroposterior radiograph, which is of potential use to radiologists.

PMID:
2005527
DOI:
10.1016/0022-3468(91)90426-t
[Indexed for MEDLINE]

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