noninfectious esophagitis, 529
noninvasive gastroenteritis,
549–550
noninvasive positive pressure
ventilation, 91
noninvasive ventilation,
17–18
nonopportunistic pneumonia,
421
nonsteroidal anti-inflammatory
drugs (NSAIDs), 372
normal pressure hydrocephalus
(NPH), 747
normal vertex delivery, 596
normocytic anemia, 453
nose
epistaxis, 666–668
foreign bodies, 668
fractures, 668–670
NPH (normal pressure
hydrocephalus), 747
NRTIs (nucleoside reverse
transcriptase inhibitors),
426
NSAIDs (nonsteroidal
anti-inflammatory drugs),
372
NTG (nitroglycerin),
82, 91, 127
nuchal cord, 596
nucleoside reverse transcriptase
inhibitors (NRTIs), 426
nursemaid’s elbow, 295
O
O 2 (oxygen), 20, 643, 646
obsessive compulsive disorder
(OCD), 786
obstetrics and gynecology
ammenorrhea, 608–609
bacterial vaginosis, 601
Bartholin abscesses, 609
Candida vulvovaginitis,
601–602
cervicitis, 604
chancroid, 606–607
delivery complications,
596–597
ectopic pregnancy,
585–588
emergency contraception,
599–601
endometriosis, 611–612
first trimester bleeding,
588–589
Fitz-Hugh-Curtis syndrome,
605–606
herpes simplex virus, 603
hydatidiform mole, 594
hyperemesis gravidarum,
594–595
infections in pregnancy,
598–599
lymphogranuloma venereum,
606
mastitis, 612
medications during pregnancy,
599
normal labor and delivery,
595–596
ovarian torsion, 608
pelvic inflammatory disease,
604–605
postpartum hemorrhage,
597–598
pregnancy-induced hypertension,
592–594
Rh incompatability, 589–590
third trimester bleeding,
590–592
trichomoniasis, 602–603
vaginal bleeding, 610–611
obstructive lung disease, 301–303
obstructive shock, 55
obturator sign, 553
occlusive arterial disease,
120–123
occurrence insurance, 927
OCD (obsessive compulsive
disorder), 787
octopus bites, 623
octreotide, 348, 381, 404
oculocephalic response, 146
oculogyric crisis, 796
oculovestibular reflex, 748
oculovestibular response, 146
odontoid fractures, 153, 155
ODS (osmotic demyelinating
syndrome), 390
Ogilvie syndrome, 558
Ohm’s law, 636
Olecranon fractures, 203
Onchocerca vovulus, 444
oncologic emergencies, 473–477
open angle glaucoma, 707
open fractures, 194
open mandible fractures, 673
open pneumothorax, 166–167
ophthalmic (V 1 ) nerve
blocks, 879
ophthalmologic procedures,
883–884
opiate toxidrome, 367
opiates, 351, 366–367
opioids, 315, 778–779
opthalmia neonatorum, 697
optic neuritis, 709–710
oral candidiasis, 424
oral thrush, 424, 809orbital blowout fractures,
671–672
orbital cellulitis, 707
orchitis, 844
organic acidurias, 265–266
organophosphates, 375–376
oropharyngeal airway placement,
6–7
oropharyngeal dysphagia,
532–533
oropharyngeal emergencies, 680
orotracheal intubation, 8–9
orthodromic circuit, 32
orthopedics
evaluation of injuries,
194–195
joint abnormalities, 224–227
lower extremity injuries
ankles, 215–218
feet, 218–222
knees and lower legs,
210–215
overuse syndromes, 228–230
pediatric, 295–299
procedures, 885–891
rhabdomyolysis, 227–228
soft-tissue infections, 230–232
spine disorders, 222–224
upper extremity injuries
digits, 196
elbows, 203–205
forearms, 201–203
hands, 197
humerus, 205–206
overview, 195
shoulders, 206–210
wrists, 197–201
Osborn wave, 75
oseltamivir, 418
osmolal gap, 322
osmotic demyelinating syndrome
(ODS), 390
osteoarthritis, 225
osteochondritis of the tibial
tuberosity, 296
osteonecrosis, 459
OTC (over-the-counter)
medications, 367–374
otitis externa, 661–662
ototoxic agents, 666
Ottawa ankle, 218
ovarian torsion, 608
overflow proteinuria, 823
over-the-counter (OTC)
medications, 367–374
overuse syndromes, 228–230
ovulatory bleeding, 610
oxalic acid, 190
oxygen (O 2 ), 20, 643, 646