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Previous Volume 344:1868 June 14, 2001 Number 24 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: I enjoyed the captopril-augmented renal scan in Images in Clinical Medicine (Feb. 8 issue).¹ The proposed approach, however, can result in unnecessary scanning. Unaugmented renal scanning has a false negative rate of 20 to 25 percent and has limited efficacy as a screening test.² Therefore, normal findings on basal scanning always require confirmatory captopril-augmented scanning. On the other hand, a single normal captopril-augmented scan can offer more reassurance, does not require a second test, and obviates the need for additional administration of a radiotracer. For patients in whom renovascular hypertension is suspected, my colleagues and I first . . . [Full Text of this Article]

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