pyelonephritis Inflammation of kidney substance and pelvis, usually due to bacteria that have ascended from the bladder after entering through the urethra. Treatment generally begins with the recognition and removal of the cause substance; and includes measures to increase resistance of patient and bedrest. Alcohol and drugs irritating to the kidney should be avoided. Antipyretic drugs and an appropriate antibiotic are often administered. If there is urinary tract obstruction, surgery may be indicated. See nephritis.
pyrazinamide An antibiotic used in multidrug combinations to treat tuberculosis.
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