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A nabothian cyst is a mucus-filled cyst on the surface of the uterine cervix.
Review Date: 6/6/2006

Nail abnormalities are problems with the color, shape, texture, or thickness of the fingernails or toenails.
Review Date: 4/12/2007

Review Date: 11/12/2007

This poisoning is from swallowing or breathing in (inhaling) nail polish.
Review Date: 10/24/2007

Naphthalene is a white solid substance with a strong smell. Poisoning from naphthalene destroys or changes red blood cells so they cannot carry oxygen.
Review Date: 8/9/2007

Naproxen sodium is a non-steroidal anti-inflammatory drug (NSAID) used to relieve mild to moderate aches and pains. This article discusses poisoning from an overdose of naproxen sodium.
Review Date: 4/17/2007

Narcissistic personality disorder is a condition characterized by an inflated sense of self-importance and an extreme preoccupation with one's self.
Review Date: 11/15/2006

Narcolepsy is a sleep disorder that causes uncontrollable sleepiness and frequent daytime sleeping.
Review Date: 9/7/2006

Nasal congestion refers to a stuffy nose. Many people think that a nose gets congested (stuffy) from too much thick mucus. This is incorrect. The nose becomes congested when the tissues lining the nose become swollen due to inflamed blood vessels.
Review Date: 10/23/2007

CPAP stands for "continuous positive airway pressure." CPAP is a treatment that delivers slightly pressurized air throughout the breathing cycle. This makes it easier to breathe. CPAP can be used by mouth, by nose, or through breathing tubes.
Review Date: 11/13/2006

Showing 1 - 10 of 91 Results Next >