Drugs delivered transdermally are often fat-soluble because they can penetrate the lipid-rich outer layer of the skin more effectively than water-soluble substances.

Three consecutive integers that add up to 51 are 16, 17, and 18.

Solution:
16 + 17 + 18 = 51

The pump rate simulate the flow of liquid in a system.

The pump rate in pulmonary function tests simulates the breathing rate to standardize measurements of respiratory volumes and capacities.

Subcutaneous injection would allow a drug to be absorbed more rapidly than an intradermal injection. This is because subcutaneous injections deliver the drug into the layer of fat and tissue just beneath the skin, where there is better blood flow compared to the dermis. The increased blood circulation in the subcutaneous layer facilitates faster absorption of the drug into the bloodstream. In contrast, intradermal injections are administered into the dermis, which has a lower blood supply, leading to slower absorption.