Untreated heart attacks may slow blood flow enough that blood may start to clot and prevent the flow of blood to the brain or other major organs. Extremely low blood pressure can also result from drug overdose and reactions to drugs. Therefore, brain ischemia can result from events other than heart attacks.
What Is Return Receipt? The USPSÂ® offers a service called Return Receipt that gives you peace of mind by providing evidence of delivery in the form of a postcard signed by the recipient or an e-mail with an electronic copy of the recipientâs signature. Return Receipt is available for Priority Mail ExpressÂ®, Priority MailÂ®, First Class MailÂ®, Retail GroundÂ® and Media Mail.
If the Certified Mail letter is forwarded to a new address, the Automated Tracking System provides that information too. Records of delivery or return of Certified Mail items are retained by the USPS for two years. These records are to the general public. The easiest way to trace a Certified Mail letter is to go to the USPS website and enter the Certified Mail number in the Track and Confirm section.