Physiology Which one the following does NOT primarily involve an action K+ channels? A Hypoxic Pulmonary Vasoconstriction B Insulin secretion by Sulfonylurea C Carotid body discharge with reduced O2 D Dantrolene in the treatment of Malignant Hypehermia 💡 Explanation Which one the following does NOT primarily involve an action K+ channels? ✓ Correct Answer: D. Dantrolene in the treatment of Malignant Hypehermia