RT Book, Section
A1 Hron, Jonathan D.
A2 Zaoutis, Lisa B.
A2 Chiang, Vincent W.
SR Print(0)
ID 1146113432
T1 Cyanosis
T2 Comprehensive Pediatric Hospital Medicine, 2e
YR 2017
FD 2017
PB McGraw-Hill Education
PP New York, NY
SN 9780071829281
LK accesspediatrics.mhmedical.com/content.aspx?aid=1146113432
RD 2024/04/20
AB Cyanosis  is  a  bluish  discoloration  of  the  skin,  mucous  membranes,  tongue,  lips,  or  nail  beds  and  is  due  to  an  increased  concentration  of  reduced  hemoglobin  (Hb)  in  the  circulation.1  Clinically  evident  cyanosis  typically  occurs  at  an  oxygen  saturation  of  85%  or  less.2  It  is  easier  to  identify  under  natural  lighting  and  is  typically  more  difficult  to  detect  in  patients  with  mild  cyanosis,  dark  skin  pigmentation,  or  anemia.  Long-term  complications  of  chronic  cyanosis  include  clubbing,  polycythemia,  stroke,  brain  abscess,  platelet  abnormalities,  lower-than-expected  IQ,  scoliosis,  and  hyperuricemia.1