▴ 그림 2-366. 간, 췌장과 담즙 분비 해부도.
Copyright ⓒ 2011 John Sangwon Lee, MD, FAAP
● 그 직접형 빌리루빈이 답즙의 성분 중 하나이다.
● 그러나 신생아의 경우, 혈액 속 적혈구에서 나온 간접형 빌리루빈을 간에서 적절히 처리해서 직접형 빌리루빈으로 변화시켜 담관을 통해 십이지장으로 분비시키지 못해 혈 중 간접형 빌리루빈(Unconjugated bilirubin)이 때에 따라 증가된다.
● 이때 눈 흰자위가 노랗게 되고 피부가 노랗게 되고 신생아의 생리적 황달이 생기게 된다.
● 미국 만삭 신생아들과 거의 만삭에 가까이 태어난 미숙아들 1,000명 중 5~40명이 빌리 광선요법 치료를 받는다(출처: NEJM February 2008 p.920).
● 신생아 황달의 원인, 증상 징후, 치료, 예후 등이 신생아기 이후 영유아들이나 학령기 아이들, 사춘기 아이들, 성인들에게 생기는 황달의 원인, 증상, 치료와 예후가 다른 점이 많다.
■신생아 황달과 신생아기 이후의 아이들에게 생기는 황달로 다음과 같이 분류한다.
1. 모유와 신생아 황달
2. 용혈성 빈혈
3. 미숙 신생아 황달 참조
4. 생리적 신생아 황달
5. Rh 부적합으로 인한 신생아 황달
6. A B O 혈액형 부적합으로 생기는 신생아 황달
7. 모유를 먹는 신생아에게 생기는 모유수유 신생아 황달
8. 간염으로 인한 신생아 황달
9. 선천성 담도 폐쇄로 생기는 신생아 황달
10. G-6-인산 포도당 탈수소효소 결핍으로 인한 신생아 황달
11. 그 외 다른 원인으로 인한 신생아 황달
여기 정보는 ‘부모도 반의사가 되어야 한다 www.koreapediatrics.com
소아과 웹사이트 총 25권 중 제1권 ‘소아청소년 응급의료’ 에서 퍼 온 글
인사 드립니다.
안녕하세요
온 세상 한국 부모님 여러분!!!!!!!!!!!!
전 세계 8천만 한인 필독 진정한 육아 바이블 읽기 운동에 동참해 주시기를 바랍니다.
미국 소아과전문의, 한국 소아청소년과 전문의 이상원 Dr. John Sangwon
Lee, MD, FAAP 는 고국과 전 세계 8천 만 한인들에게 자녀 육아, 건강증진,
질병진단 치료, 예방, 자녀를 진정으로 사랑하는 방법, 수면, 소아청소년 성교육, 인성교육 등에 관한 자녀 육아 필독 바이블을 온 세상 8천만 한인들에게 선물로 다음 정보들을 드리고 싶습니다.
1. http://www.koreapediatrics.com/부모도 반의사가 되어야 한다–약 20,000여 쪽. 13412 제목, 2013년 출시 소아과 웹사이트
2.소아가정의학 백과-618쪽, 1988년 출간,
3.소아가정간호백과–부모도 반의사가 되어야 한다-1076쪽, 1998년 출간,
4.신생아 영유아 학령기아 사춘기아 성장발육 육아-623쪽 2014년 출간,
5.신생아 성장 발육 양호 질병, 610쪽 2014년 출간
6.모유 모유수유 이유 308쪽, 2014년 출간
7.소아청소년 뇌전증(간질)+뇌전증 백문 백답, 240쪽 2015년 출간
8.임신에서 신생아 돌보기까지, 약 300쪽 1998년 출간
9.아들 딸 이렇게 사랑해서 키우세요, 210쪽 역저 전 세계 명작 Ross Campbell
10.의학 박사 저 1988년 출간
11.,마약과 아이들 약 200쪽 , 1988년 출간
12.아들 딸 조건 없는 진정한 사랑으로 키우세요 그리고 인성교육은 이렇게 2016년 출간 647쪽
13.”https://www.flickr.com/people/drleesangwon
14. “http://blog.naver.com/drsangwonlee”
15,”https://www.facebook.com/drleesangwon“
16.Newyorkkorea.netd의 Pediatric columnist
17. 그 외
고국과 전 세계 한인 남녀 노소 여러분의 삶의 기본 필 수조건 중 하나인 건강증진을 위해 어디선지 언제든지 누구든지 쉽게 접해서
읽을 수 있는 한글 건강 증진 정보가 들어 있는 육아 정보 바이블이 필요한때가
한 세기 이상 지났다고 생각합니다.
여유가 있으면 전 세계 한인 각 가정에 육아 바이블을 전부 증정하고 싶습니다.
시간이 있으면 사랑하는 한인 부모님들께 육아 바이블 전부를 크게 소리 내어
읽어 드리고 싶습니다.
물론 부족한 면도 있을 수 있습니다. 다른 육아 바이블을 참조하면서 자녀들을 육아하면 자녀들은 분명히 행복하게 자랄 것이라고 저는 확신합니다.
이상원 드림
미국 커네티컷 주 의사면허증 #016370
한국 의사면허증 #7794
미국 소아과학회 명예회원
한국소아청소년과 전문의
미국 Top 소아과 전문의
Copyrightⓒ 2017 John Sangwon Lee, MD.FAAP
Copyright drleepediarics.com 2/25/2026
Physiological Jaundice in Newborn Infants
For more information, please visit drleepediatrics.com. Search
For more information, visit drleepediatrics.com and search.
▴ Figure 2-363. Severe neonatal jaundice causes the newborn’s skin to yellow.
Source: Clinical Educational Aid, Ross Laboratories, Columbus, Ohio, USA, and Pediatric and Family Nursing Encyclopedia
Almost all newborns can develop jaundice within the first week of life without any underlying medical conditions.
● The skin begins to turn yellower around 2-3 days after birth due to increased blood bilirubin levels. The yellow color typically returns to normal around 4-7 days after birth. This type of jaundice is called physiological jaundice.
● Physiological jaundice occurs in all newborns, but it is not severe enough to cause visible yellowing of the skin.
● Physiological jaundice occurs normally in almost all newborns, although the degree of severity varies.
● When physiological jaundice is more severe, the newborn’s skin appears more yellow.
● When physiological jaundice is mild, the newborn’s skin appears almost normal.
● The cause of physiological jaundice in newborns is not known for certain, but the following mechanisms are believed to play a role:
● The lifespan of fetal red blood cells in the fetus’s blood before birth is approximately 80 days, much shorter than the lifespan of newborn red blood cells after birth.
● Shortly after birth, fetal red blood cells are easily destroyed and hemolyzed. The liver primarily processes the indirect bilirubin produced from these hemolyzed red blood cells. However, the liver of newborns is immature and cannot properly process the indirect bilirubin produced from these destroyed red blood cells. Furthermore, newborns can become physiologically dehydrated. It is believed that physiological jaundice occurs in newborns through a combination of the conditions described above and others.
▴ Photo 2-364. Blood tests are performed to determine the severity and cause of jaundice.
Copyright ⓒ 2011 John Sangwon Lee, MD, FAAP
All newborns experience physiological jaundice, although the severity varies.
● When newborns have physiological jaundice, blood levels of indirect bilirubin are usually not as high as in pathological jaundice caused by Rh incompatibility. When physiological jaundice is mild, the skin color does not yellow noticeably. However, in severe cases, the skin and whites of the eyes may turn yellow.
● Newborns can develop both physiological and pathological jaundice.
● Physiological jaundice and pathological jaundice can occur simultaneously.
● It is often difficult to determine whether jaundice is physiological or pathological just by examining newborns.
● If a newborn presents with jaundice for any reason, it’s crucial to determine whether it’s physiological or caused by a disease.
● In other words, a differential diagnosis is needed to determine whether it’s physiological neonatal jaundice or pathological neonatal jaundice caused by a disease.
● Differential diagnosis of neonatal jaundice may require various blood tests. Sometimes, repeated blood tests may be necessary. (Refer to “Parents Should Become Half-Doctors, Pediatric and Family Nursing Encyclopedia” – Volume 6, “Good Growth and Development of Newborns and Diseases” – Neonatal Jaundice, Neonatal Jaundice Caused by Congenital Biliary Atresia)
■ Signs and Symptoms of Neonatal Jaundice (Neonatal Hyperbilirubinemia)
Neonatal jaundice (Neonatal Hyperbilirubinemia)
● Jaundice that occurs in newborns is collectively called neonatal jaundice or hyperbilirubinemia.
▴ Figure 2-365. Severe Neonatal Jaundice
Source: Ross Laboratories, Columbus, Ohio
43216, Division of Laboratories, USA
Also called neonatal hyperbilirubinemia. When blood bilirubin levels rise significantly above normal, the skin and whites of the eyes may turn yellow. Jaundice is a symptom of a disease, not a disease itself.
● Physiological neonatal jaundice occurs in 60% of normal newborns within the first seven days of life.
● Bilirubin released from red blood cells in the blood is converted to bilirubin glucuronides in the liver by the enzyme glucuronyl transferase (UDPGA), which is direct bilirubin.
▴ Figure 2-366. Anatomy of the liver, pancreas, and bile secretion.
Copyright ⓒ 2011 John Sangwon Lee, MD, FAAP
● Direct bilirubin is a component of bile.
● However, in newborns, the liver cannot properly process indirect bilirubin released from red blood cells in the blood, converting it to direct bilirubin and secreting it into the duodenum through the bile duct. This causes an increase in indirect bilirubin (unconjugated bilirubin) in the blood.
● This causes yellowing of the whites of the eyes and skin, leading to physiological jaundice in newborns.
● Among 1,000 full-term and near-term premature infants in the United States, 50 to 40 receive bile phototherapy (Source: NEJM February 2008 p. 920).
● The causes, symptoms, signs, treatment, and prognosis of neonatal jaundice differ significantly between infants, school-age children, adolescents, and adults.
■ Neonatal jaundice is classified as follows: 1. Breast milk and neonatal jaundice
2. Hemolytic anemia
3. See jaundice in premature newborns
4. Physiological neonatal jaundice
5. Neonatal jaundice due to Rh incompatibility
6. Neonatal jaundice due to A B O blood group incompatibility
7. Breastfed neonatal jaundice in breastfed newborns
8. Neonatal jaundice due to hepatitis
9. Neonatal jaundice due to congenital biliary atresia
10. Neonatal jaundice due to G-6-phosphate glucose dehydrogenase deficiency
11. Neonatal jaundice due to other causes
The information here is from ‘Parents should also be doctors www.koreapediatrics.com
Volume 1 of 25 volumes on the Pediatrics website ‘Pediatrics and Adolescents This article was copied from ‘Emergency Medical’
Greetings.
Hello
Korean parents around the world!!!!!!!!!!!!
Please join the movement to read the True Parenting Bible, a must-read for 80 million Koreans worldwide.
Dr. John Sangwon Lee, MD, FAAP, an American pediatrician and Korean pediatrician, would like to gift the following information to the 80 million Koreans around the world: the must-read parenting bible, which covers parenting, health promotion, disease diagnosis and treatment, prevention, how to truly love your children, sleep, pediatric sex education, and character education.
1. http://www.koreapediatrics.com/Parents Should Become Half-Doctors Too – Approximately 20,000 pages. 13412 Title, Pediatrics Website, Published in 2013
2. Encyclopedia of Pediatric Family Medicine – 618 pages, published in 1988
3. Encyclopedia of Pediatric Family Nursing – Parents Should Become Half-Doctors Too – 1076 pages, Published in 1998
4. Growth, Development, and Parenting for Newborns, Infants, Toddlers, School-Age Children, and Adolescents – 623 pages, Published in 2014
5. Growth and Development: Healthy Newborns, 610 pages, published in 2014
6. Breastfeeding: Reasons for Breastfeeding, 308 pages, Published in 2014
7. Epilepsy in Children and Adolescents: 100 Questions and Answers, 240 pages, published in 2015
8. From Pregnancy to Newborn Care, approximately 300 pages, Published in 1998
9. Raise Your Son or Daughter with Love, 210 pages, Translated by Ross Campbell
10. Written by a medical doctor, published in 1988
11. Drugs and Children, approx. 200 pages, published in 1988
12. Raise Your Son or Daughter with Unconditional, True Love, and This is How Character Education Works, published in 2016, 647 pages
13. https://www.flickr.com/people/drleesangwon
14. “http://blog.naver.com/drsangwonlee”
15,”https://www.facebook.com/drleesangwon“
16. No. yorkea.netd’s Profile
17. Other
I believe that it has been over a century since we needed a parenting information bible in Korean that anyone can easily access and read, anywhere, anytime, to promote health, one of the basic necessities of life for Koreans of all ages and genders in Korea and around the world.
If I have the time, I would like to give the Parenting Bible to every Korean family worldwide.
If I have the time, I would like to give the Parenting Bible to every Korean family around the world.
To my beloved Korean parents, I’d like to read the entire Parenting Bible aloud to you.
Of course, there may be some shortcomings. I am confident that if you refer to other parenting bibles while raising your children, your children will undoubtedly grow up happily.
Sangwon Lee
Connecticut Medical License #016370
Korean Medical License #7794
American Academy of Pediatrics Honorary Member
Korean Pediatrician
American Topic Pediatrician
Copyrightⓒ 2017 John Sangwon Lee, MD.FAAP
Copyright drleepediarics.com 2/25/2026