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.
UPS vs USPS. Due to their acronyms, it is quite easy to confuse the two ââ but what really are the differences between UPS and USPS? Whenever you have a parcel that needs to be shipped somewhere else, these two are the first two companies which come in mind ââ so which one should you choose?