| The Relationship of Specific Gravity by Refractometer and Osmolality in the Urine of Neonates. |
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Hae Young Lee, In Soon Ahn, Jae Seung Yang, Beak Keun Lim, Jong Soo Kim |
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Department of Pediatrics, Wonju College of Medicine, Yonsei University, Wonju, Klorea |
| 신생아에서 굴절계에 의한 뇨의 비중과 뇨삼투압의 관계 |
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이해용, 안인순, 양재승, 임백근, 김종수 |
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연세대학교 원주의과대학 소아과학교실 |
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Received: 4 November 1988 • Accepted: 31 December 1988 |
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| Abstract |
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Comparison of urinary specific gravity by refractometer and osmolality in 238 neonates
demonstrated as followings;
1) The regression line is represented by the equation:
Y = 107+14.2 (X-1000)
while Y = osmolality in mosm/kg
X = Specific gravity by refractometer
r=0.8545
2) Osmolality is the only accurate measure of urine concentration in newborn infants. If the specific
gravity by refractometer is used to screen for urine concentration, an elevated level should be checked
by measuring the osmolality. |
| Key Words:
Specific gravity, Osmolality, Urine, Neonates |
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