Category: N
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Nongranular leukocyte
An agranulocyte; a lymphocyte or monocyte.
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Nocturnal lagophthalmos
Failure of the eyelids to remain closed during sleep, which may be due to chronic keratitis.
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Normal labor
Progressive dilation and effacement of the cervix with descent of the presenting part.
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Neuroparalytic keratitis
The dull and slightly cloudy insensitive cornea seen in lesions of the fifth nerve.
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Nursing jurisprudence
The application of the principles of law as they relate to the practice of nursing, to the obligations of nurses to their patients, and to the relations of nurses with each other and with other health care professionals.
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Needle catheter jejunostomy
A jejunostomy created by using a needle to insert a catheter into the jejunum. It is intended exclusively for feeding, created by direct surgical approach or percutaneously.
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Nonhemolytic jaundice
Jaundice due to abnormal metabolism of bilirubin or to biliary tract obstruction, and not to excessive destruction of red blood cells.
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Nasal irrigation
Flushing the nasal cavities and accessible sinuses with fluid; used to treat nasal congestion and allergies.
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Nasotracheal intubation
The insertion of an endotracheal tube through the nose and into the trachea. Unlike orotracheal intubation, the tube is passed “blindly” without using a laryngoscope to visualize the glottic opening. Because this technique may be used without hyperextension of the neck, it is used in patients suspected of having cervical spinal trauma or known to…
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Nasogastric intubation
The insertion of a Levine or other gastrointestinal tube through the nose into the stomach.