Active transport
The active (energy-requiring) movement of a substance between different tissues via pumping mechanisms contained within cell membranes. (p. 38)
Diffusion
The passive movement of a substance (e.g., a drug) between different tissues from areas of higher concentration to areas oflower concentration. (Compare with active transport.) (p. 38)
Elderly
Pertaining to a person who is 65 years of age or older. (Note: Some sources consider "elderly" to be 55 years of age or older.) (p. 42)
Neonate
Pertaining to a person younger than 1 month of age; newborn infant. (p. 38)
Nomogram
A graphic tool for estimating drug dosages using various body measurements. (p. 40)
Pediatric
Pertaining to a person who is 12 years of age or younger. (p. 39)
Polypharmacy
The use of many different drugs concurrently in treating a patient, who often has several health problems. (p.42)