Noseclip, plastic, foam-padded noseclips help increase the accuracy of spirometry results by eliminating the escape of air through the nostrils during testing
EKG Ruler, features are Seconds scale for PR, QRS, Cycle, Length, Coupling, Escape, and Parasystolic Intervals, Offers both 1 and 2 cycle scales, small enough to fit in a medical coat pocket, Complete with protective sleeve, Size: 1 11/16 x 6 3/8 in
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