The major difference between unfractionated heparin (UH) and low-molecular-weight heparin (LMWH) is related to the:
A) Size of the molecules-UH is a large molecule compared with LMWH.
B) Source of the drug-UH is derived from bovine lungs and LMWH is derived from pig intestines.
C) Testing of effectiveness-Serum levels of LMWH must be done every 2 days during therapy.
D) Route of administration-LMWH cannot be administered subcutaneously.

Question

Quizplus · Accepted Answer

Unfractionated heparin (UH) consists of larger, heterogeneous molecules, whereas low-molecular-weight heparin (LMWH) is made up of smaller, more uniform molecules. This difference in size affects their pharmacokinetics and pharmacodynamics, including how they are administered and monitored.

The Major Difference Between Unfractionated Heparin (UH) and Low-Molecular-Weight Heparin