Figure 7. (A) Ratio of left ventricular minute index (LVMI) and myocardial Oxygen2consumption (MV with dotO2), (B) myocardial uptake of lactate (MV-lactate), and (C) peripheral uptake of lactate (PV-lactate) in malignant hyperthermia-susceptible (MHS) (filled circles; n = 12) and non-MHS (nMHS) swine (open circles; n = 8) during baseline recordings (t = 0) and after 90 min of halothane exposure (1% inspired) in addition to succinylcholine (3 mg *symbol* kg sup -1 intravenously 15 min after the start of halothane exposure). *P < 0.05 versus baseline; triangles = P < 0.05 MHS versus nMHS.