Definition of Foreign Direct Investment Foreign direct investment (FDI) is an investment in a business by an investor from another country for which the foreign investor has control over the company purchased.
Spinal anaesthesia. Spinal anaesthesia (or spinal anesthesia), also called spinal block, subarachnoid block, intradural block and intrathecal block, is a form of regional anaesthesia involving the injection of a local anaesthetic into the subarachnoid space, generally through a fine needle, usually 9 cm (3.5 in) long.
Spinal blocks, epidural blocks and peripheral nerve blocks -- which can numb a leg, arm or the head -- are all types of regional anesthesia. Regional anesthesia can be used alone during surgery, in combination with general anesthesia during surgery or after surgery for pain control. The American Society of Regional Anesthesia and Pain Medicine has information on regional anesthesia. For general anesthesia, the provider typically will administer the anesthetic as a gas through a mask and/or intravenously. The anesthetic makes the patient unconscious and unable to feel pain.