But the tire speed rating system isnât without its quirks. For instance, the systemâs European roots give it unusual mile per hour maximums. Another such quirk is that the letter âHâ is out of place. Instead of appearing after âG,â it falls between âUâ and âVâ as does the speed to which it corresponds.
Among them: 1  RNs tend to have more responsibilities and independence in the workplace than LPNs. 2  RNs must usually complete more training than LPNs. 3  LPNs are in higher demand than RNs, nationally speaking.  RNs tend to earn more than LPNs.
RN is the longer of the two and takes 2 years to complete whereas LPN is a one year course. There is also a bachelorâs degree in RN which takes about 4 years to complete. Degree of certification of RN is either an associateâs or a bachelorâs degree of science while that of LPN is a diploma or a certificate.PN vs RN. Nursing is considered to be one of the noblest professions in the world that gives one an opportunity to be of help to those who need it most on account of ailments and infirmity. LPN and RN are two different degrees that qualify one as a nurse and pursue a career in healthcare industry as a nurse.