Head tilt, 329 Health care delivery, Hearing loss acquired sensorineural, 222 –224 common and life-threatening causes, 224 t conductive, 222 congenital sensorineural, 222 differential diagnosis, 222 –224 , 223 t evaluation and decision, 224 –226 , 225 f functional, 224 pathophysiology, 222 Heart murmur characteristics, 228 –229 ancillary diagnostic aids, 229 –230 “seven Ss” of innocent, 229 t common, 233 t differential diagnosis, 227 –230 , 228 t due to congenital heart defects (CHDs), 227 evaluation and decision, 230 –234 of acyanotic infant, 230 , 232 f cardiac murmur, 230 of cyanotic infant, 230 , 231 f examination, 227 –230 general assessment, 227 –228 precordial examination, 228 functional murmurs, 232 history, 227 innocent vs pathologic, 234 t signs and symptoms, 229 Heart palpitations, 424 Heat exhaustion, 690 Heat stroke, 203 , 688 , 690 Heel padding, 1369 Heel walking, 564 Helicobacter pylori infection, 215 Hemangiomas, 317 , 320 –321 , 347 , 1352 , 1352 f Hematemesis, 213 , 215 , 1419