The Lancet Weight Determines Wheal Diameter in Response to Skin Prick Testing with Histamine - Fig 3

Abstract

<p><b>A)</b> Changes in the mean superficial perfusion on the forearms according to the lancet weights: 25 g, 85 g, 135 g and 265 g. A difference in the mean superficial perfusion was seen from baseline to all the four applied lancet weights. <b>B)</b> On the back a difference in the mean superficial perfusion was seen from baseline to all the four applied lancet weights with both histamine concentrations (1 mg/mL and 10 mg/mL) and from baseline for the lancet weight of 265 g with saline as well. For each condition; n = 20. * = p < 0.05, ** = p < 0.01. Asterisks (*) or (**) placed just above the bars indicates significant difference from baseline superficial skin perfusion. Mean ± SEM.</p