Term | Definition |
Anuria | Failure of the kidneys to produce urine. |
Bilirubinuria | The presence of bilirubin in the urine. |
Bladder catheterization | The passing of a sterile catheter through the urethra and into the bladder to remove urine. |
Diuresis | Secretion and passage of large amounts of urine. |
Dysuria | Difficult or painful urination. |
Frequency | The condition of having to urinate often. |
Glycosuria | The presence of glucose in the urine. |
Hematuria | Blood present in the urine. |
Ketonuria | The presence of ketone bodies in the urine. |
Ketosis | An accumulation of large amounts of ketone bodies in the tissues and body fluids. |
Micturition | The act of voiding urine. |
Nephron | The functional unit of the kidney. |
Nocturia | Excessive (voluntary) urination during the night. |
Nocturnal enuresis | Inability of an individual to control urination at night during sleep (bedwitting). |
Oliguria | Decreased or scanty output of urine. |
pH | The unit that describes the acidity or alkalinity of a solution. |
Polyuria | Increased output of urine. |
Proteinuria | The presence of protein in the urine. |
Pyuria | The presence of pus in the urine. |
Renal threshold | The concentration at which a substance in the blood that is not normally excreted by the kidneys begins to appear in the urine. |
Retention | The inability to empty the bladder. The urine is being produced normally but is not being voided. |
Specific gravity | The weight of a substance compared with the weight of an equal volume of a substance known as the standard.The specific gravity refers to the measurement of the amount of dissolved substances present in the urine compared with the same amount of water. |
Supernatant | The clear liquid that remains at the top after a precipitate settles. |
Suprapublic aspiration | The passing of a sterile needle through the abdominal wall into the bladder to remove urine. |
Urgency | The immediate need to urinate. |
Urinalysis | The physical, chemical, and microscopic analyses of urine. |
Urinary incontinence | The inability to retain urine. |
Void | To empty the bladder. |