• Na+ see Serum sodium
• Nabothian cyst
• N-acetylglucosamine-6-sulfate sulfatase deficiency (Type IIID) see Sanfilippo syndrome
• N-acetylglucosaminidase deficiency (Type IIIB) see Sanfilippo syndrome
• Nail abnormalities
• Nail blanch test see Capillary nail refill test
• Nail care for newborns
• Nail polish
• Nails - fungal infection see Fungal nail infection
• NALD see Adrenoleukodystrophy
• Nalfon see Fenoprofen calcium overdose
• Nalfon overdose
• Naphthalene
• Naprosyn overdose
• Naproxen sodium see Naprosyn overdose
• Narcissistic personality disorder
• Narcolepsy
• Narcotic abuse see Drug abuse
• Narcotics - screen see Toxicology screen
• Nasal allergies see Allergic rhinitis
• Nasal congestion
• Nasal congestion see Nasal congestion
• Nasal CPAP
• Nasal discharge
• Nasal flaring
• Nasal mucosal biopsy
• Nasal polyps
• Nasal septum repair see Septoplasty
• Nasal tumor see Juvenile angiofibroma
• Nasogastric tube see Gastric suction
• Nasopharyngeal culture
• Natal teeth
• Natural short sleeper
• Nausea and acupressure
• Nausea and vomiting
• Nausea in the morning - females see Morning sickness
• NBP see Prostatitis - nonbacterial
• NBT test see Nitroblue tetrazolium test
• NCV see Nerve conduction velocity
• Near drowning
• Nearsightedness
• Nearsightedness surgery see Corneal surgery
• Neatsfoot oil
• NEC see Necrotizing enterocolitis
• Neck lump
• Neck pain
• Neck stiffness see Neck pain
• Neck X-ray
• Neck/spinal injury see Spinal/neck injury
• Necrosis
• Necrosis - acute tubular see Acute tubular necrosis
• Necrosis - renal papillae see Renal papillary necrosis
• Necrosis - renal tubular see Acute tubular necrosis
• Necrotizing colitis see Pseudomembranous colitis
• Necrotizing enterocolitis
• Necrotizing fasciitis see Necrotizing soft tissue infection
• Necrotizing glomerulonephritis see Rapidly progressive (crescentic) glomerulonephritis
• Necrotizing granuloma
• Necrotizing pneumonia see Aspiration pneumonia
• Necrotizing soft tissue infection
• Necrotizing vasculitis
• Needle biopsy of the pleura see Pleural needle biopsy
• Needle cricothyrotomy see Emergency airway puncture
• Nembutal overdose
• Neonatal adrenoleukodyrstophy see Adrenoleukodystrophy
• Neonatal conjunctivitis
• Neonatal cystic fibrosis screening
• Neonatal polycythemia see Hyperviscosity - newborn
• Neonatal respiratory distress syndrome see Respiratory distress syndrome (RDS) in infants
• Neonatal teeth see Natal teeth
• Neonate
• Neoplasm see Tumor
• Nephrectomy see Kidney removal
• Nephritis - interstitial see Interstitial nephritis
• Nephritis - lupus see Lupus nephritis
• Nephritis syndrome - acute see Acute nephritic syndrome
• Nephroblastoma see Wilms' tumor
• Nephrocalcinosis
• Nephrogenic diabetes insipidus see Diabetes insipidus - nephrogenic
• Nephrogenic diabetes insipidus - congenital see Congenital nephrogenic diabetes insipidus
• Nephrolithiasis
• Nephropathy - analgesic see Analgesic nephropathy
• Nephropathy - IgA see IgA nephropathy (Berger's disease)
• Nephropathy - reflux see Reflux nephropathy
• Nephrosclerosis - arteriolar see Malignant hypertension (arteriolar nephrosclerosis)
• Nephrosis see Nephrotic syndrome
• Nephrotic syndrome
• Nephrotic syndrome - congenital see Congenital nephrotic syndrome
• Nerve biopsy
• Nerve conduction velocity
• Nerve damage - diabetic see Diabetic neuropathy
• Nerve deafness see Sensorineural deafness
• Nerve pain see Neuralgia
• Nervous indigestion see Irritable bowel syndrome (functional bowel)
• Neuralgia
• Neuritis - peripheral see Peripheral neuropathy
• Neuroblastoma
• Neuroendocrine tumors see Pancreatic islet cell tumor
• Neurofibromatosis 2
• Neurofibromatosis-1
• Neurogenic bladder
• Neuroglioma see Primary brain tumor
• Neurologic deficit
• Neurologic orthostatic hypotension see Multiple system atrophy
• Neurological deficits - focal see Focal neurological deficits
• Neuronal ceroid lipofuscinoses (NCLS)
• Neuropathy - alcoholic see Alcoholic neuropathy
• Neuropathy - autonomic see Autonomic neuropathy
• Neuropathy - axillary nerve see Axillary nerve dysfunction
• Neuropathy - brachial plexus see Brachial plexopathy
• Neuropathy - common peroneal nerve see Common peroneal nerve dysfunction
• Neuropathy - distal median nerve see Distal median nerve dysfunction
• Neuropathy - facial see Cranial mononeuropathy VII
• Neuropathy - femoral nerve see Femoral nerve dysfunction
• Neuropathy - isolated see Mononeuropathy
• Neuropathy - peripheral see Peripheral neuropathy
• Neuropathy - peroneal (hereditary) see Charcot-Marie-Tooth disease (hereditary)
• Neuropathy - radial nerve see Radial nerve dysfunction
• Neuropathy - sciatic nerve see Sciatica
• Neuropathy - tibial nerve see Tibial nerve dysfunction
• Neuropathy - ulnar nerve see Ulnar nerve dysfunction
• Neuropathy secondary to drugs
• Neuroretinitis
• Neurosarcoidosis
• Neurosurgery see Brain surgery
• Neurosyphilis
• Neurotic depression (dysthymia) see Dysthymia
• Neutropenia see Agranulocytosis
• Nevi see Birthmarks - pigmented
• Nevoid basal cell carcinoma syndrome see Basal cell nevus syndrome
• Nevus araneus see Spider angioma
• Nevus flammeus see Port-wine stain
• Nevus sebaceous see Birthmarks - pigmented
• Nevus simplex see Stork bite
• Nevus varicousus osteohypertrophicus syndrome see Klippel-Trenaunay syndrome
• Nevus verucosus hypertrophicans see Klippel-Trenaunay syndrome
• Newborn breast swelling see Hormonal effects in newborns
• Newborn conjunctivitis see Neonatal conjunctivitis
• Newborn cranial deformation see Newborn head molding
• Newborn head molding
• Newborn infant see Neonate
• Newborn jaundice
• Newborn scoring see APGAR
• Newborn skin characteristics see Skin characteristics in newborns
• New-onset angina see Unstable angina
• NF1 see Neurofibromatosis-1
• NF2 see Neurofibromatosis 2
• NH4+ test see Ammonium ion
• Niacin
• Nicotine
• Nicotine withdrawal
• Nicotinic acid see Niacin
• Niemann-Pick
• Night blindness see Vision - night blindness
• Night terror
• Nightmares
• Nightmares - repeated see Repeated nightmares
• Nighttime penile tape test see Erection self-test
• Nikolsky's sign
• Nil disease see Minimal change disease
• Nipple discharge - abnormal
• Nipple problems
• Nipple soreness when breast-feeding see Overcoming breastfeeding problems
• Nitric acid
• Nitroblue tetrazolium test
• Nitroglycerin overdose
• Nitroprusside test see Serum ketones
• Nits see Head lice
• Nizatidine see H2 Receptor antagonists
• NKHHC see Diabetic hyperglycemic hyperosmolar coma
• NMR - abdomen see Abdominal MRI
• NMR - cardiac see Heart MRI
• NMR - chest see Chest MRI
• NMR - cranial see MRI of the head
• NMR - lumbosacral spine see Lumbosacral spine MRI
• NMR - spine see Spine MRI
• No periods see Amenorrhea - primary
• Nocardia infection
• Nocardiosis see Nocardia infection
• Nocardiosis - pulmonary see Pulmonary nocardiosis
• Nocturia see Urination - excessive at night
• Nocturnal myoclonus see Restless leg syndrome
• Nocturnal penile tumescence (NPT) stamp test see Erection self-test
• Nodules
• Noises or buzzing in the ears see Ear noises or buzzing
• Nolamine see Phenindamine overdose
• Noma
• Non-A or non-B hepatitis see Hepatitis C
• Non-accidental trauma (NAT) see Battered child syndrome
• Non-cardiac chest pain see Heartburn
• Non-cardiogenic pulmonary edema see ARDS (acute respiratory distress syndrome)
• None see Sodium phosphate overdose
• Non-gonococcal (septic) bacterial arthritis
• Non-Hodgkin's lymphoma
• Nonimmune thrombocytopenia - drug-induced see Drug-induced nonimmune thrombocytopenia
• Noninsulin-dependent diabetes mellitus see Type 2 diabetes
• Noninvasive
• Nonketotic hyperglycemic coma see Diabetic hyperglycemic hyperosmolar coma
• Nonlipid reticuloendotheliosis see Histiocytosis
• Nonorganic failure to thrive see Maternal deprivation syndrome
• Nonpolio enterovirus infection see ECHO virus infection
• Nonseminomatous germ cell tumor - teratoma see Malignant teratoma
• Non-small cell lung cancer see Lung cancer - non-small cell
• Nonspecific back pain
• Non-stress test see Fetal heart monitoring
• Nontropical sprue see Celiac disease - sprue
• Nontuberculous atypical mycobacterial disease see Atypical mycobacterial infection
• Noonan syndrome
• Norepinephrine - blood see Catecholamines - blood
• Norepinephrine-urine test see Catecholamines - urine
• Normal body temperature see Body temperature normals
• Normal childhood growth milestones see Developmental milestones record
• Normal childhood growth milestones - 12 months see Developmental milestones record - 12 months
• Normal childhood growth milestones - 18 months see Developmental milestones record - 18 months
• Normal childhood growth milestones - 2 months see Developmental milestones record - 2 months
• Normal childhood growth milestones - 2 years see Developmental milestones record - 2 years
• Normal childhood growth milestones - 3 years see Developmental milestones record - 3 years
• Normal childhood growth milestones - 4 months see Developmental milestones record - 4 months
• Normal childhood growth milestones - 4 years see Developmental milestones record - 4 years
• Normal childhood growth milestones - 5 years see Developmental milestones record - 5 years
• Normal childhood growth milestones - 6 months see Developmental milestones record - 6 months
• Normal childhood growth milestones - 9 months see Developmental milestones record - 9 months
• Normal growth and development
• Normal pressure hydrocephalus (NPH)
• Normetanephrine see Catecholamines - urine
• Norpamin see Desipramine hydrochloride overdose
• Norpamin overdose
• Norphenamine see Phenindamine overdose
• North American blastomycosis see Blastomycosis
• Nortriptyline - serum see Therapeutic drug levels
• Norwalk virus see Viral gastroenteritis
• Nose - bulbous see Rhinophyma
• Nose - congested see Nasal congestion
• Nose - objects in see Foreign body in the nose
• Nose biopsy see Nasal mucosal biopsy
• Nose bleed see Nosebleed
• Nose bleeding see Nosebleed injury
• Nose emergency
• Nose fracture
• Nosebleed
• Nosebleed injury
• Nosebleed treatment
• Nosocomial pneumonia see Hospital-acquired pneumonia
• Nostrils - flaring see Nasal flaring
• Not breathing see Breathing - slowed or stopped
• Notifiable diseases see Reportable diseases
• Novoxapam see Oxazepam overdose
• Novoxapin see Doxepin overdose
• NST see Fetal heart monitoring
• Nuclear heart scan see Nuclear ventriculography (MUGA or RNV)
• Nuclear magnetic resonance - abdomen see Abdominal MRI
• Nuclear magnetic resonance - cardiac see Heart MRI
• Nuclear magnetic resonance - chest see Chest MRI
• Nuclear magnetic resonance - cranial see MRI of the head
• Nuclear magnetic resonance - lumbosacral spine see Lumbosacral spine MRI
• Nuclear magnetic resonance - spine see Spine MRI
• Nuclear magnetic resonance (NMR) imaging see MRI
• Nuclear medicine scan see Isotope study
• Nuclear Radiography see Isotope study
• Nuclear scan - liver or spleen see Liver scan
• Nuclear scan - technetium see Liver scan
• Nuclear scan - thyroid see Thyroid scan
• Nuclear ventriculography (MUGA or RNV)
• Numbness and tingling
• Nummular dermatitis see Nummular eczema
• Nummular eczema
• Nuprin see Ibuprofen overdose
• Nurse midwife profession see Certified Nurse Midwife profession (CNM)
• Nurse Practitioner (NP) profession
• Nursemaid's elbow see Radial head dislocation
• Nursemaid's elbow
• Nurses and doctors - different types see Types of health care providers
• Nursing see Breastfeeding
• Nursing mothers - self-care see Breast-feeding mothers - self-care
• Nutmeg oil see Myristical oil
• Nutrition - inadequate see Malnutrition
• Nutrition and athletic performance
• Nutrition and substance abuse see Diet and substance abuse recovery
• Nutrition labeling see Food labeling
• Nyctalopia see Vision - night blindness
• Nyctanopia see Vision - night blindness
• Nycturia see Urination - excessive at night
• Nystagmus see Eye movements - uncontrollable
• Nytol overdose

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