Each of the 12 ECG leads records the electrical activity of the heart from a different angle, and therefore align with different anatomical areas of the heart. Two leads that look at neighboring anatomical areas are said to be contiguous.
PCP can be snorted, smoked, injected, or swallowed. It is sometimes smoked after being sprinkled on marijuana, tobacco, or parsley. Ketamineâalso known as K, Special K, or cat Valiumâis a dissociative currently used as an anesthetic for humans as well as animals. Much of the ketamine sold on the street has been diverted from veterinary offices.
Author information: (1)Department of Anesthesiology, Leiden University Medical Center, RC Leiden, the Netherlands. Comment in Br J Clin Pharmacol. 2014 Feb;77(2):233-8. The anaesthetic ketamine is used to treat various chronic pain syndromes, especially those that have a neuropathic component.