Table 1.

Total time (in seconds) of the hyperemic response

ACh concentration	Ringer	TEA	L-NNA+Keto	TEA+L-NNA+Keto
1 mM	476 ± 62	659 ± 43*	354 ± 24*†	509 ± 44†‡
10 mM	609 ± 78	839 ± 64*	449 ± 33*†	701 ± 62‡
100 mM	1,143 ± 112	1,184 ± 69	741 ± 66*†	867 ± 64*†

Total time of the hyperemic response to increasing bolus doses of acetylcholine (ACh). TEA, tetraethylammonium; L-NNA, N-nitro-l-arginine; Keto, ketorolac. Data are means ± SE

^*P < 0.05 from Ringer site;

^†P < 0.05 from TEA site;

^‡P < 0.05 from L-NNA+Keto site.