title: Effect of pneumatic tourniquet application to the distal extremities of the horse: blood gas, serum electrolyte, osmolality, and hematologic alterations.
abstract: With 120 minutes of pneumatic tourniquet application to the distal extremity in the horse, the following effects were noted in the tourniqueted limb vein (TLV): (i) local venous acidemia, (ii) increase in serum K+ concentrations, (iii) minimal changes in plasma total solids, Na+, or osmolality, and (iv) apparent reduction in hematocrit values when compared with the same measurements in the control leg. Tourniquet release after 120 minutes produced a prompt return to base line for PCV and PO2 in the TLV; however, pH, PCO2 and K+ values in the TLV required 10 to 15 minutes to reach base line (TLV or control leg vein).
mesh_terms: D000818:Animals; D001769:Blood; D001784:Blood Gas Analysis; D001794:Blood Pressure; D004573:Electrolytes / Q000097:blood; D005121:Extremities; D006736:Horses / Q000097:blood / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D009994:Osmolar Concentration; D014111:Tourniquets / Q000662:veterinary*
chemical_list: D004573:Electrolytes