Clinical Definition Nocturia is a fairly common condition in which a patient has to wake up at night to void the bladder (i.e., urinate). In Our Own Words Most people can sleep six to eight hours without needing to urinate, but patients with nocturia awaken at least once and frequently, many additional times …
Nocturnal polyuria
Clinical Definition Nocturnal polyuria is an excessive volume of urination at nighttime. Etiologies include, excessive fluid intake (especially of caffeine or alcohol), congestive heart failure, renal insufficiency, and other conditions. Diagnosis depends on a careful health history, physical exam, evaluation of a voiding diary, tests such as urinalysis and urodynamic tests; treatment includes treating underlying…
Nodules, Lung
Clinical Definition A lung nodule is a rounded opacity surrounded by lung parenchyma. It is equal to or less than 3 centimeters in diameter and usually well marginated. Lung nodules may be benign tumors, such as a hamartoma or a malignancy. Growths larger than 3 centimeters are generally classified as masses and suspected to be…
Non-Hodgkin Lymphoma
Clinical Definition Non-Hodgkin lymphoma is a group of hematologic malignancies that originate in the lymphocytes. The cancerous lymphocytes multiply and do not function normally, compromising immune system functions. There are many subtypes of non-Hodgkins lymphoma classified according to whether they arise from T cells or B cells and whether they are indolent or aggressive. In Our Own Words…
Non-Steroidal Anti-Inflammatory Drug
Clinical Definition Non-steroidal anti-inflammatory medications, or NSAIDs, are commonly recommended to relieve pain and decrease inflammation (the body’s response to injury or irritation, marked by warmth, pain, swelling). They work by blocking production of inflammatory triggers. Besides helping to reduce fever, subdue a headache or ease minor aches caused by a cold, NSAIDs are often…
Norovirus
Clinical Definition Triggered by a group of Calicivirus viruses, norovirus is a viral infection that causes gastroenteritis. It is highly contagious and can be transmitted through drinking contaminated water or eating contaminated food or undercooked shellfish. In Our Own Words Norovirus is a contagious infection that causes vomiting, diarrhea and gastroenteritis (i.e., inflammation of the…