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.
exists and is an alternate of . USPS parcel post is a ground surface offered by the USPS, and is estimated to take from 2 - 9 days, or up to 14 postal business days. Priority mail takes priority over parcel post and first class mail, is usually sent by air, and can arrive in 2-3 days, with a maximum of 5 days.
USPS First Class vs Priority vs Express Mail. The difference between USPS First Class, Priority and Express Mail is in the duration they take to deliver the item, and naturally, the related costs.If you do not know, these are the names of three of the most popular services from USPS, the United States Postal Service.owever, Express is the costliest of the three options with each parcel costing more than $10. Using Priority and First Class, you can very well send parcels in less than $6. With Express service, you also stand to get an insurance cover of up to $100 should there be loss or damage to your item in transit.