RT Book, Section
A1 Gomella, Tricia Lacy
A1 Eyal, Fabien G.
A1 Bany-Mohammed, Fayez
SR Print(0)
ID 1168356709
T1 Cyanosis
T2 Gomella's Neonatology: Management, Procedures, On-Call Problems, Diseases, and Drugs, 8e
YR 2020
FD 2020
PB McGraw-Hill Education
PP New York, NY
SN 9781259644818
LK accesspediatrics.mhmedical.com/content.aspx?aid=1168356709
RD 2024/04/19
AB During  a  physical  examination,  an  infant  appears  blue.  Cyanosis  is  a  physical  sign  indicating  a  bluish/purplish  discoloration  of  the  skin  and/or  mucous  membranes.  There  are  many  different  types  of  cyanosis,  and  it  is  important  to  differentiate  physiologic  versus  pathologic  cyanosis.  This  chapter  will  focus  mainly  on  central  cyanosis  because  it  is  a  potentially  serious  condition  that  requires  an  immediate  evaluation.  The  differential  diagnosis  of  central  cyanosis  includes  disorders  involving  an  increase  in  deoxygenated  hemoglobin  (respiratory,  cardiovascular,  neurologic,  or  other)  or  hematologic  disorders  involving  abnormal  hemoglobin  (methemoglobinemia/sulfhemoglobinemia).  Early  diagnosis  and  treatment  for  any  cyanotic  infant  is  essential.