To produce capillary vasodilatation below the surface of a transcutaneous PO₂ electrode,which of the following should be done to the electrode?

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The transcutaneous PO₂ electrode is heated to 42° C to 45° C to produce capillary vasodilatation below the surface of the electrode.Heating improves gas diffusion across the skin,because it increases local blood flow at the site of the electrode and alters the structure of the stratum corneum,the fibrinous tissue within a lipid-and-protein matrix.Cooling or icing the skin will decrease blood flow to the area,making it difficult to obtain an accurate PO₂.A temperature of 35° C is not warm enough to arterialize the area under the skin.

To Produce Capillary Vasodilatation Below the Surface of a Transcutaneous