Left axis deviation (LAD) is a condition whereby the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between -30Â° and -90Â°. This is reflected by a QRS complex positive in lead I and negative in leads aVF and II.
Package (or thick envelope) A package is a parcel (or box) less than 84 inches when you add the length plus girth. Length is the longest side of a package. Girth is the distance around the 2 smaller sides of a package. A thick envelope is a large envelope exceeding 3/4 inch thickness.
USPS packages are delivered by your regular letter carrier. If he has already delivered today, there will not be a later delivery. The tracking system is not outdated and works fairly well with some glitches, just like UPS and FedEx. The reason you are only seeing electronic notice received is that the package has not yet been delivered by the shipper to the Post Office.