Lyme disease See Lyme disease macrophage activation syndrome, 1018 –1019 mixed connective tissue disease (MCTD), 1002 polyarteritis nodosa, 1003 –1006 , 1005 t scleroderma, 999 –1002 systemic lupus erythematosus, 990 –999 vasculitis, 1002 –1003 Rhinitis, 136 , 166 , 167 t, 168 Rhinitis sicca , 166 Rhinovirus, 307 , 572 RhoD immune globulin (RhoGAM), 360 Rhus dermatitis, 434 Rib fractures, 1283 Richiasis, 172 Ricin, 480 Rickets, 674 –676 Rickettsiae, 891 Rickettsial disease, 805 –806 Riga–Fede disease, 347 , 1318 Ringer lactate solution, 1099 Rinne test, 225 Risk of Suicide Questionnaire (RSQ), 1446 Risperidone, for schizophrenia, 1442 Rocky Mountain spotted fever (RMSF), 196 , 198 , 441 –442 , 441 f, 643 –644 Rocuronium, 39 t, 40 for neuromuscular blockade/paralysis, 1256 Rodent bites, 721 Rodenticides, 1065 , 1066 t Romberg testing, 564 –565 Rosai–Dorfman syndrome, 314 , 909 Roseola infantum, 645 Rotary atlantoaxial subluxation, 325 , 327 Rotary subluxation, 1242 , 1247 , 1248 f, 1249 , 1249 f Rubella, 313 , 646 Rumack–Matthew nomogram, 293 Ruptured arteriovenous malformation (AVM), 556