Howard test

How·ard test

(how'ărd),

an obsolete test in which a differential ureteral catheterization is performed by the insertion of bilateral ureteral catheters to measure simultaneous urinary volume and sodium concentration in patients with suspected renovascular hypertension.

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Howard test

An obsolete test designed to study the ability of each kidney to concentrate sodium after bilateral ureteral catheterisation; a fall of 40% of urine volume coupled with either a 15% drop in urinary sodium and/or a 50% increase in creatinine was regarded as indicative of renal ischaemia.

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Howard,

John Eager, U.S. internist and endocrinologist, 1902-1985.

Ellsworth-Howard test - see under Ellsworth

Howard test - a differential ureteral catheterization test.

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