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.
The RNS can administer medicines, develop and manage nursing plans, assist physicians in examinations and treatments and take independent decisions. In Hierarchy, the RNs are above the LPNs. Another difference that can be noticed between the LPN and the RN is their salaries.The RNs are paid more than the LPNs.he RNS can administer medicines, develop and manage nursing plans, assist physicians in examinations and treatments and take independent decisions. In Hierarchy, the RNs are above the LPNs. Another difference that can be noticed between the LPN and the RN is their salaries. The RNs are paid more than the LPNs.