RT Book, Section
A1 Hardin, J. Matthew
A2 Knoop, Kevin J.
A2 Stack, Lawrence B.
A2 Storrow, Alan B.
A2 Thurman, R. Jason
SR Print(0)
ID 1181043845
T1 Rocky Mountain Spotted Fever
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181043845
RD 2024/04/24
AB Rickettsia  rickettsii,  the  causative  organism  of  RMSF,  is  transmitted  by  the  bite  of  an  infected  tick.  Fever,  headache,  rigors,  abdominal  pain,  myalgias,  and  malaise  occur  2  to  14  days  after  inoculation.  Three  to  5  days  after  the  onset  of  symptoms,  the  rash  begins  with  erythematous,  blanching  macules  on  the  distal  extremities  (wrists  and  ankles).  This  is  followed  by  centripetal  spread  to  the  trunk  and  the  palms  and  soles.  The  lesions  evolve  into  papules  and  petechia.  Without  treatment,  RMSF  has  a  25%  mortality;  delayed  diagnosis  and  treatment  result  in  3%  to  4%  mortality.