hyperpronation maneuver, 1375 f initial assessment/H&P, 1374 management/diagnostic testing, 1374 –1375 shoulder dislocation, 1375 Annular ligament displacement (ALD), 1374 Annular plaques, 639 Annular rash, 461 , 461 f Anogenital warts, 636 Anomalous coronary arteries, 610 Anorexia nervosa, 131 , 570 Anosmia, 333 Antenatal torsion testis (newborn), 414 Anterior cord syndrome, 1249 –1250 Anterior cruciate ligaments (ACLs), 275 , 1202 Anterior horn cell disease, 557 Anterior mediastinal masses (AMM), 906 , 910 , 912 Anterior midline craniofacial tumors, 175 Anterior uveitis, 189 –190 Antibiotic therapy in shock treatment, 74 , 81 –82 , 81 t for suspected chorioamnionitis, 67 Anticonvulsants, 452 Antidiuretic hormone (ADH), 74 Antidotal therapy, 1037 , 1038 t–1039 t Antiepileptic drugs (AEDs) ataxia from, 108 , 108 t for seizure prevention, 496 –497 , 497 t Antihistamines, 1052 Anti-NMDAR encephalitis, 893 Antipsychotic medications, 1442 Anxiety disorders, 97 , 424 , 1444 Aorta and great vessels, injuries of, 1281 –1282 , 1282 f clinical assessment, 1282 clinical recognition, 1281 –1282 disposition, 1282 evaluation and diagnosis of, algorithm for, 1283 f evidences, 1281 management, 1282 triage, 1282 Aortic valve stenosis, 519 Aphthous-like ulcers, 1317 Aphthous stomatitis, 312 , 349 t, 352 , 1317 Aphthous ulcers, 1317 Aplasia cutis, 463 , 1355 Aplastic anemia, 418 –419 Apnea, 505 , 1030 approach to diagnosis and management, 104 f, 105 –106 tasks of emergency physician, 105 tests, 105 BRUE/ALTE in, 102 –103 , 103 t congenital abnormalities and, 102 , 105 definition, 102 differential diagnosis, 102 –103 , 103 f evaluation and decision episodes, 104 –105 initial stabilization, 103 underlying cause, 105 –106 exogenous factors, 102 historical features, 104 t life-threatening conditions, 104 t muscular response in, 102 pathophysiology, 102 as result of life-threatening child abuse, 102 Apneic oxygenation, 38 Appendage torsion, 410 , 415 Appendicitis, 152 –153 , 358 , 553 with abscess and fecalith, 1295 f acute nonperforated, 1290 clinical assessment, 1291 clinical recognition, 1290 –1291 evidences, 1290 management, 1291 –1293 treatment goals, 1290 triage considerations, 1291 diagnostic algorithm, 1292 f longitudinal/transverse images, 1294 f lymphoid hyperplasia, 1290 Pediatric Appendicitis Score, 1239 t, 1291 perforated with abscess and fecalith, 1295 f clinical assessment, 1293 –1295 clinical recognition, 1293 management, 1295 treatment goals, 1293 symptoms and signs, progression of, 1291 t Appendicular ataxia, 107 Arcanobacterium haemolyticum , 475 , 508 , 511 Aripiprazole, for schizophrenia, 1442 Arrhythmias, 368 , 502 , 520 management, 45 palpations and, 425 Arrhythmic emergencies clinical recognition bradycardia, management/diagnostic testing, 606 –609 , 609 f channelopathies, management/diagnostic testing, 606 initial assessment/H&P, 602 management/diagnostic testing, 602 narrow complex, irregular tachycardia, 602 narrow complex, regular tachycardia, 602 –606 sinus rhythm, 608 f supraventricular tachycardia with aberrancy, 607 f triage, 602 ventricular tachycardia, 607 f wide complex, irregular tachycardia, 602 wide complex regular tachycardia, 606 wide complex VT, management/diagnostic testing, 602 , 606 t Arterial hypoxemia, 478 Arterial infarcts, 1390 Arteriovenous malformations (AVMs), 890 , 1383 Arthralgia, 402 Arthritis, 402 , 1010 –1011 Arthrocentesis, 1362 , 1364 –1365 Arthroscopic surgery, 1375 Artificial pulmonary surfactant, 67 Ascending reticular activating system (ARAS), 117 Asenapine, for schizophrenia, 1442 Askin tumor, 910 Ask Suicide Screening Questions (ASQ), 1446 Asparaginase, 926 Aspergillus infection, 444 , 998 Asphyxia, traumatic, 1287 Aspiration pneumonia, 943 –944 Aspirin (acetylsalicylic acid), 215 , 311 Assisted ventilation, 49 Asteatotic eczema, 433 , 433 f Asthma, 480 , 572 , 940 –942 Asymmetric chest wall movement/expansion, 486 Asymptomatic neutropenia, 786 Ataxia, 119 , 301 , 891 , 896 acute disseminated encephalomyelitis (ADEM) and, 107 acute postinfectious cerebellar, 107 appendicular, 107 common causes of, 107 , 108 t definition, 107 diagnosis of, 107 diagnostic pathway, 109 f differential diagnosis, 107 –108 , 108 t gait, 107 Guillain–Barré syndrome and, 108 , 108 t imaging and laboratory tests, 107 –108 ipsilateral limb, 107 from lesions outside of cerebellum, 107 management of, 109 stroke and, 108 symptoms and signs related to, 107 from toxic ingestions, 108 , 108 t truncal, 107 Atlantoaxial dislocations, 557 ... anemia, 418 –419 Apnea, 505 , 1030 approach to diagnosis and management, 104 f, 105 –106 tasks of emergency physician, 105 tests, 105 BRUE/ALTE in, 102 –103 , 103 t congenital abnormalities and,... diagnostic algorithm, 1292 f longitudinal/transverse images, 1294 f lymphoid hyperplasia, 1290 Pediatric Appendicitis Score, 1239 t, 1291 perforated with abscess and fecalith, 1295 f clinical